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74 | daniel-mar | 1 | |
2 | // ******************************************************************************** |
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3 | // **** ATTENTION! This unit is not developed anymore. ***** |
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4 | // **** Please use the new version RecBinUnit2.pas , which is Object-oriented ***** |
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5 | // ******************************************************************************** |
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6 | |||
12 | daniel-mar | 7 | //////////////////////////////////////////////////////////////////////////////////// |
8 | // RECYCLE-BIN-FUNCTIONS BY DANIEL MARSCHALL // |
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9 | // E-MAIL: info@daniel-marschall.de // |
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10 | // WEB: www.daniel-marschall.de // |
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11 | //////////////////////////////////////////////////////////////////////////////////// |
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74 | daniel-mar | 12 | // Revision: 01 JUL 2016 // |
12 | daniel-mar | 13 | // This unit is freeware, but please link to my website if you are using it! // |
14 | //////////////////////////////////////////////////////////////////////////////////// |
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74 | daniel-mar | 15 | // Successfully tested with: // |
28 | daniel-mar | 16 | // Windows 95b (without IE4 Shell Extensions) // |
17 | // Windows 95b (with IE4 Shell Extensions) // |
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18 | // Windows 98-SE // |
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67 | daniel-mar | 19 | // Windows NT4 SP6 // |
28 | daniel-mar | 20 | // Windows XP-SP3 // |
21 | // Windows 2000-SP4 // |
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22 | // Windows 2003 Server EE SP1 // |
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23 | // Windows Vista // |
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24 | // Windows 7 // |
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67 | daniel-mar | 25 | // Windows 10 // |
12 | daniel-mar | 26 | //////////////////////////////////////////////////////////////////////////////////// |
27 | // // |
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28 | // Needs Delphi 4 or higher. If you are using Delphi 4 or 5, you can not use the // |
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29 | // RecyclerGetDateTime() functions, because the unit "DateUtils" is missing. // |
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30 | // Warning! This is a platform unit. // |
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31 | // // |
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32 | // To do! Can you help? // |
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67 | daniel-mar | 33 | // - Win7 : Drive GUIDs // |
34 | // - Win7 : Absolute vs. Relative size limitations // |
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12 | daniel-mar | 35 | // - WideString-Support (input/output) // |
36 | // - Always do EOF before reading anything? // |
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37 | // - Is it possible to identify a Vista-file that is not named $Ixxxxxx.ext? // |
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38 | // - RecyclerGetInfofiles() check additionally for removable device? // |
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39 | // RecyclerIsValid() is false. // |
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25 | daniel-mar | 40 | // - Make it possible to empty the recycle bin of one specific drive! // |
12 | daniel-mar | 41 | // // |
42 | // Unknown! Do you know the answer? // |
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43 | // - How does Windows 9x/NT manage the daylight saving time (if it does)? // |
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44 | // - How does Windows Vista react to a RECYCLER\ folder on a NTFS device? // |
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45 | // - How does Windows Vista react to a RECYCLED\ folder on a FAT device? // |
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46 | // // |
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47 | // Thanks to all these who have helped me solving coding problems. // |
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48 | // Thanks to SEBA for sending in the Windows Vista trash structure files. // |
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49 | // Thanks to OMATA for testing the unit with Delphi 4. // |
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50 | // Thanks to DEITYSOU for making a bugfix of DriveExists() // |
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51 | // // |
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52 | //////////////////////////////////////////////////////////////////////////////////// |
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53 | |||
54 | (* |
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55 | |||
56 | == TODO LISTE == |
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57 | |||
67 | daniel-mar | 58 | - Wichtig! Windows XP: InfoTip, IntroText und LocalizedString sind Resourcenangaben und müssen ausgelesen werden! |
59 | - Testen: Wie reagiert Windows, wenn Bitbucket\C existiert, aber kein Wert 'Percent' hat? Mit der Standardeinstellung? |
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60 | - Bug: Windows 2000 bei bestehenden Windows 95 Partition: Recycler Filename ist dann Recycled und nicht Recycler! |
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61 | - bug? w95 recycled file hat immer selben löschzeitpunkt und größe? war die nicht verschieden? |
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62 | - beachtet? bei leerem papierkorb auf fat ist weder info noch info2 vorhanden? |
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63 | - testen: auch möglich, einen vista papierkorb offline öffnen? |
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64 | - Problem: bei win95(ohne ie4) und win2000 gleichzeitiger installation: es existiert info UND info2!!! |
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65 | - Implement SETTER functions to every kind of configuration thing. (percentage etc) |
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66 | - Registry CURRENT_USER: Funktionen auch für fremde Benutzer zur Verfügung stellen? |
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67 | - Es sollte möglich sein, dass ein Laufwerk mehr als 1 Recycler beinhaltet -- behandeln |
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12 | daniel-mar | 68 | |
67 | daniel-mar | 69 | === Future Ideas === |
12 | daniel-mar | 70 | |
67 | daniel-mar | 71 | - Demoapplikation: Dateien statt Text als Explorer-Like (TListView)? |
72 | - Einzelne Elemente oder alle wiederherstellen oder löschen |
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73 | - Konfiguration für Laufwerke ändern etc |
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74 | - IconString -> TIcon Convertion functions |
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75 | - platzreservierung in mb-angabe berechnen |
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76 | - I don't know if there exists any API function which checks the state at any internal way. |
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77 | - copy/move files from recyclebin |
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12 | daniel-mar | 78 | |
79 | *) |
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80 | |||
81 | // TODO: Also include BC++ Versions |
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82 | {$IFNDEF BCB} |
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83 | {$DEFINE DEL1UP} |
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84 | {$IFNDEF VER80} |
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85 | {$DEFINE DEL2UP} |
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86 | {$IFNDEF VER90} |
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87 | {$DEFINE DEL3UP} |
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88 | {$IFNDEF VER100} |
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89 | {$DEFINE DEL4UP} |
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90 | {$IFNDEF VER120} |
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91 | {$DEFINE DEL5UP} |
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92 | {$IFNDEF VER130} |
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93 | {$DEFINE DEL6UP} |
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94 | {$IFNDEF VER140} |
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95 | {$DEFINE DEL7UP} |
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96 | {$ENDIF} |
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97 | {$ENDIF} |
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98 | {$ENDIF} |
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99 | {$ENDIF} |
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100 | {$ENDIF} |
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101 | {$ENDIF} |
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102 | {$ENDIF} |
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103 | |||
104 | {$IFDEF DEL7UP} |
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105 | {$WARN UNSAFE_TYPE OFF} |
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106 | {$WARN UNSAFE_CODE OFF} |
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107 | {$WARN UNSAFE_CAST OFF} |
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108 | {$ENDIF} |
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109 | |||
110 | {$IFDEF DEL6UP} |
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111 | unit RecyclerFunctions platform; |
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112 | {$ELSE} |
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113 | unit RecyclerFunctions; |
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114 | {$ENDIF} |
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115 | |||
116 | // Configuration |
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117 | |||
118 | // If enabled, all functions with parameter "InfofileOrRecycleFolder" will |
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119 | // also accept files which are not the indexfile (then, a INFO2 or INFO file |
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120 | // will be searched in this directory). |
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121 | {.$DEFINE allow_all_filenames} |
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122 | |||
123 | interface |
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124 | |||
125 | uses |
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126 | Windows, SysUtils, Classes, {$IFDEF DEL6UP}DateUtils,{$ENDIF} |
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127 | ShellApi{$IFNDEF DEL6UP}, FileCtrl{$ENDIF}, Registry, |
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27 | daniel-mar | 128 | Messages, BitOps; |
12 | daniel-mar | 129 | |
130 | type |
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131 | EUnknownState = class(Exception); |
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132 | EEventCategoryNotDefined = class(Exception); |
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133 | EAPICallError = class(Exception); |
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134 | |||
135 | PSHQueryRBInfo = ^TSHQueryRBInfo; |
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136 | TSHQueryRBInfo = packed record |
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137 | cbSize : dword; |
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138 | i64Size : int64; |
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139 | i64NumItems : int64; |
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140 | end; |
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141 | |||
17 | daniel-mar | 142 | GPOLICYBOOL = (gpUndefined, gpEnabled, gpDisabled); |
143 | |||
12 | daniel-mar | 144 | const |
145 | RECYCLER_CLSID = '{645FF040-5081-101B-9F08-00AA002F954E}'; |
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146 | |||
147 | {$IFDEF DEL6UP} |
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148 | function RecyclerGetDateTime(drive: char; fileid: string): tdatetime; overload; |
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149 | function RecyclerGetDateTime(drive: char; UserSID: string; fileid: string): tdatetime; overload; |
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150 | function RecyclerGetDateTime(InfofileOrRecycleFolder: string): tdatetime; overload; |
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151 | function RecyclerGetDateTime(InfofileOrRecycleFolder: string; id: string): tdatetime; overload; |
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152 | {$ENDIF} |
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153 | |||
154 | function RecyclerGetSourceUnicode(drive: char; fileid: string): WideString; overload; |
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155 | function RecyclerGetSourceUnicode(drive: char; UserSID: string; fileid: string): WideString; overload; |
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156 | function RecyclerGetSourceUnicode(InfofileOrRecycleFolder: string): WideString; overload; |
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157 | function RecyclerGetSourceUnicode(InfofileOrRecycleFolder: string; id: string): WideString; overload; |
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158 | |||
159 | function RecyclerGetSource(drive: char; fileid: string): string; overload; |
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160 | function RecyclerGetSource(drive: char; UserSID: string; fileid: string): string; overload; |
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161 | function RecyclerGetSource(InfofileOrRecycleFolder: string): string; overload; |
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162 | function RecyclerGetSource(InfofileOrRecycleFolder: string; id: string): string; overload; |
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163 | |||
164 | procedure RecyclerListIndexes(drive: char; result: TStringList); overload; |
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165 | procedure RecyclerListIndexes(drive: char; UserSID: string; result: TStringList); overload; |
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166 | procedure RecyclerListIndexes(InfofileOrRecycleFolder: string; result: TStringList); overload; |
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167 | |||
168 | function RecyclerGetSourceDrive(drive: char; fileid: string): char; overload; |
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169 | function RecyclerGetSourceDrive(drive: char; UserSID: string; fileid: string): char; overload; |
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170 | function RecyclerGetSourceDrive(InfofileOrRecycleFolder: string): char; overload; |
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171 | function RecyclerGetSourceDrive(InfofileOrRecycleFolder: string; id: string): char; overload; |
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172 | |||
173 | function RecyclerOriginalSize(drive: char; fileid: string): integer; overload; |
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174 | function RecyclerOriginalSize(drive: char; UserSID: string; fileid: string): integer; overload; |
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175 | function RecyclerOriginalSize(InfofileOrRecycleFolder: string): integer; overload; |
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176 | function RecyclerOriginalSize(InfofileOrRecycleFolder: string; id: string): integer; overload; |
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177 | |||
178 | function RecyclerIsValid(drive: char): boolean; overload; |
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179 | function RecyclerIsValid(drive: char; UserSID: string): boolean; overload; |
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180 | function RecyclerIsValid(InfofileOrRecycleFolder: string): boolean; overload; |
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181 | |||
182 | function RecyclerCurrentFilename(drive: char; fileid: string): string; overload; |
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183 | function RecyclerCurrentFilename(drive: char; UserSID: string; fileid: string): string; overload; |
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184 | function RecyclerCurrentFilename(InfofileOrRecycleFolder: string): string; overload; |
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185 | function RecyclerCurrentFilename(InfofileOrRecycleFolder: string; id: string): string; overload; |
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186 | |||
187 | function RecyclerGetPath(drive: char; UserSID: string; IncludeInfofile: boolean; fileid: string): string; overload; |
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188 | function RecyclerGetPath(drive: char; UserSID: string; IncludeInfofile: boolean): string; overload; |
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189 | function RecyclerGetPath(drive: char; IncludeInfofile: boolean): string; overload; |
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190 | function RecyclerGetPath(drive: char; UserSID: string): string; overload; |
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191 | function RecyclerGetPath(drive: char): string; overload; |
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192 | |||
193 | procedure RecyclerGetInfofiles(drive: char; UserSID: string; IncludeInfofile: boolean; fileid: string; result: TStringList); overload; |
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194 | procedure RecyclerGetInfofiles(drive: char; UserSID: string; IncludeInfofile: boolean; result: TStringList); overload; |
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195 | procedure RecyclerGetInfofiles(drive: char; IncludeInfofile: boolean; result: TStringList); overload; |
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196 | procedure RecyclerGetInfofiles(drive: char; UserSID: string; result: TStringList); overload; |
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197 | procedure RecyclerGetInfofiles(drive: char; result: TStringList); overload; |
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198 | |||
199 | function RecyclerCurrentFilenameAndPath(drive: char; UserSID: string; fileid: string): string; overload; |
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200 | function RecyclerCurrentFilenameAndPath(drive: char; fileid: string): string; overload; |
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201 | function RecyclerCurrentFilenameAndPath(InfofileOrRecycleFolder: string; id: string): string; overload; |
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202 | |||
203 | function RecyclerRemoveItem(drive: char; UserSID: string; fileid: string): boolean; overload; |
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204 | function RecyclerRemoveItem(drive: char; fileid: string): boolean; overload; |
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205 | function RecyclerRemoveItem(InfofileOrRecycleFolder: string; id: string): boolean; overload; |
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206 | |||
207 | procedure RecyclerGetAllRecyclerDrives(result: TStringList); |
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208 | |||
209 | function RecyclerEmptyRecycleBin(flags: cardinal): boolean; overload; |
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210 | function RecyclerEmptyRecycleBin(sound, progress, confirmation: boolean): boolean; overload; |
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211 | |||
212 | function RecyclerAddFileOrFolder(FileOrFolder: string; confirmation: boolean): boolean; overload; |
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213 | function RecyclerAddFileOrFolder(FileOrFolder: string): boolean; overload; |
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214 | |||
215 | function RecyclerConfirmationDialogEnabled: boolean; |
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17 | daniel-mar | 216 | function RecyclerShellStateConfirmationDialogEnabled: boolean; |
12 | daniel-mar | 217 | procedure RecyclerConfirmationDialogSetEnabled(NewSetting: boolean); |
218 | |||
219 | function RecyclerGetCurrentIconString: string; |
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220 | function RecyclerGetDefaultIconString: string; |
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221 | function RecyclerGetEmptyIconString: string; |
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222 | function RecyclerGetFullIconString: string; |
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223 | |||
224 | function RecyclerGetName: string; |
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225 | function RecyclerGetInfoTip: string; |
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226 | function RecyclerGetIntroText: string; |
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227 | |||
228 | function RecyclerEmptyEventGetName: string; |
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229 | function RecyclerEmptyEventGetCurrentSound: string; |
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230 | function RecyclerEmptyEventGetDefaultSound: string; |
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231 | procedure RecyclerEmptyEventGetSoundCategories(AStringList: TStringList); |
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232 | function RecyclerEmptyEventGetSound(ACategory: string): string; |
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233 | |||
234 | function RecyclerGlobalGetPercentUsage: integer; |
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235 | function RecyclerSpecificGetPercentUsage(Drive: Char): integer; |
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236 | function RecyclerGetPercentUsageAutoDeterminate(Drive: Char): integer; |
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237 | |||
238 | function RecyclerGlobalIsNukeOnDelete: boolean; |
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239 | function RecyclerSpecificIsNukeOnDelete(Drive: Char): boolean; |
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240 | function RecyclerIsNukeOnDeleteAutoDeterminate(Drive: Char): boolean; |
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241 | |||
242 | function RecyclerHasGlobalSettings: boolean; |
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243 | |||
244 | function RecyclerIsEmpty: boolean; overload; |
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245 | function RecyclerIsEmpty(Drive: Char): boolean; overload; |
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246 | |||
247 | function RecyclerGetNumItems: int64; overload; |
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248 | function RecyclerGetNumItems(Drive: Char): int64; overload; |
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249 | |||
250 | function RecyclerGetSize: int64; overload; |
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251 | function RecyclerGetSize(Drive: Char): int64; overload; |
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252 | |||
253 | function RecyclerGetAPIInfo(Drive: Char): TSHQueryRBInfo; overload; |
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254 | function RecyclerGetAPIInfo(Path: String): TSHQueryRBInfo; overload; |
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255 | |||
256 | function RecyclerGetCLSID: string; |
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257 | |||
258 | // Diese Funktion ist false, wenn sie z.B. unter Windows 95 ohne Internet Explorer |
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259 | // 4.0 Shell Extension ausgeführt wird. Wenn abwärtskompatibler Code geschrieben |
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260 | // werden soll, sollte RecyclerQueryFunctionAvailable() verwendet werden, da |
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261 | // unter Windows 95 folgende Funktionalitäten NICHT vorhanden sind: |
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262 | // - RecyclerIsEmpty |
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263 | // - RecyclerGetNumItems |
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264 | // - RecyclerGetSize |
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265 | // - RecyclerGetAPIInfo |
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266 | function RecyclerQueryFunctionAvailable: boolean; |
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267 | |||
17 | daniel-mar | 268 | function RecyclerGroupPolicyNoRecycleFiles: GPOLICYBOOL; |
269 | function RecyclerGroupPolicyConfirmFileDelete: GPOLICYBOOL; |
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270 | function RecyclerGroupPolicyRecycleBinSize: integer; |
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271 | |||
272 | function GPBoolToString(value: GPOLICYBOOL): String; |
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273 | |||
22 | daniel-mar | 274 | function RecyclerIsPossible(Drive: Char): boolean; |
275 | |||
12 | daniel-mar | 276 | function RecyclerLibraryVersion: string; |
277 | |||
278 | implementation |
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279 | |||
280 | type |
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281 | SHELLSTATE = record |
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282 | Flags1: DWORD; |
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283 | (* |
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284 | BOOL fShowAllObjects : 1; |
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285 | BOOL fShowExtensions : 1; |
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286 | BOOL fNoConfirmRecycle : 1; |
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287 | |||
288 | BOOL fShowSysFiles : 1; |
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289 | BOOL fShowCompColor : 1; |
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290 | BOOL fDoubleClickInWebView : 1; |
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291 | BOOL fDesktopHTML : 1; |
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292 | BOOL fWin95Classic : 1; |
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293 | BOOL fDontPrettyPath : 1; |
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294 | BOOL fShowAttribCol : 1; // No longer used, dead bit |
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295 | BOOL fMapNetDrvBtn : 1; |
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296 | BOOL fShowInfoTip : 1; |
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297 | BOOL fHideIcons : 1; |
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298 | BOOL fWebView : 1; |
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299 | BOOL fFilter : 1; |
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300 | BOOL fShowSuperHidden : 1; |
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301 | BOOL fNoNetCrawling : 1; |
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302 | *) |
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303 | dwWin95Unused: DWORD; // Win95 only - no longer supported pszHiddenFileExts |
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304 | uWin95Unused: UINT; // Win95 only - no longer supported cbHiddenFileExts |
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305 | |||
306 | // Note: Not a typo! This is a persisted structure so we cannot use LPARAM |
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307 | lParamSort: Integer; |
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308 | iSortDirection: Integer; |
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309 | |||
310 | version: UINT; |
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311 | |||
312 | // new for win2k. need notUsed var to calc the right size of ie4 struct |
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313 | // FIELD_OFFSET does not work on bit fields |
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314 | uNotUsed: UINT; // feel free to rename and use |
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315 | Flags2: DWORD; |
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316 | (* |
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317 | BOOL fSepProcess: 1; |
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318 | // new for Whistler. |
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319 | BOOL fStartPanelOn: 1; //Indicates if the Whistler StartPanel mode is ON or OFF. |
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320 | BOOL fShowStartPage: 1; //Indicates if the Whistler StartPage on desktop is ON or OFF. |
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321 | UINT fSpareFlags : 13; |
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322 | *) |
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323 | end; |
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324 | LPSHELLSTATE = ^SHELLSTATE; |
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325 | |||
326 | const |
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327 | {$IFDEF MSWINDOWS} |
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328 | shell32 = 'shell32.dll'; |
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329 | advapi32 = 'advapi32.dll'; |
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330 | {$ENDIF} |
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331 | {$IFDEF LINUX} |
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332 | shell32 = 'libshell32.borland.so'; |
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333 | advapi32 = 'libwine.borland.so'; |
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334 | {$ENDIF} |
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335 | |||
336 | // Masks for the shellstate |
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337 | SSF_SHOWALLOBJECTS = $00000001; |
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338 | SSF_SHOWEXTENSIONS = $00000002; |
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339 | SSF_HIDDENFILEEXTS = $00000004; |
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340 | SSF_SERVERADMINUI = $00000004; |
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341 | SSF_SHOWCOMPCOLOR = $00000008; |
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342 | SSF_SORTCOLUMNS = $00000010; |
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343 | SSF_SHOWSYSFILES = $00000020; |
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344 | SSF_DOUBLECLICKINWEBVIEW = $00000080; |
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345 | SSF_SHOWATTRIBCOL = $00000100; |
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346 | SSF_DESKTOPHTML = $00000200; |
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347 | SSF_WIN95CLASSIC = $00000400; |
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348 | SSF_DONTPRETTYPATH = $00000800; |
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349 | SSF_SHOWINFOTIP = $00002000; |
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350 | SSF_MAPNETDRVBUTTON = $00001000; |
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351 | SSF_NOCONFIRMRECYCLE = $00008000; |
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352 | SSF_HIDEICONS = $00004000; |
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353 | SSF_FILTER = $00010000; |
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354 | SSF_WEBVIEW = $00020000; |
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355 | SSF_SHOWSUPERHIDDEN = $00040000; |
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356 | SSF_SEPPROCESS = $00080000; |
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357 | SSF_NONETCRAWLING = $00100000; |
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358 | SSF_STARTPANELON = $00200000; |
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359 | SSF_SHOWSTARTPAGE = $00400000; |
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360 | |||
361 | // ********************************************************** |
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362 | // COMPATIBILITY FUNCTIONS |
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363 | // ********************************************************** |
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364 | |||
365 | {$IFNDEF DEL5UP} |
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366 | function IncludeTrailingBackslash(str: string): string; |
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367 | begin |
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368 | if Copy(str, length(str), 1) = '\' then // TODO? Gibt es PathDelim in Delphi 4? |
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369 | Result := str |
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370 | else |
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371 | Result := str + '\'; |
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372 | end; |
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373 | {$ENDIF} |
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374 | |||
375 | // ********************************************************** |
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376 | // INTERNALLY USED FUNCTIONS |
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377 | // ********************************************************** |
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378 | |||
379 | resourcestring |
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380 | LNG_UNEXPECTED_STATE = 'Cannot determinate state of "%s" because of an unknown value in the configuration of your operation system. Please contact the developer of the Recycler Bin Unit and help improving the determination methods!'; |
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381 | LNG_API_CALL_ERROR = 'Error while calling the API. Additional information: "%s".'; |
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382 | LNG_NOT_CALLABLE = '%s not callable'; |
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24 | daniel-mar | 383 | LNG_ERROR_CODE = '%s (Arguments: %s) returns error code %s'; |
12 | daniel-mar | 384 | |
73 | daniel-mar | 385 | function _DeleteDirectory(const Name: string): boolean; |
386 | var |
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387 | F: TSearchRec; |
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388 | begin |
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389 | result := true; |
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390 | if FindFirst(IncludeTrailingPathDelimiter(Name) + '*', faAnyFile, F) = 0 then |
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391 | begin |
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392 | try |
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393 | repeat |
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394 | if (F.Attr and faDirectory <> 0) then |
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395 | begin |
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396 | if (F.Name <> '.') and (F.Name <> '..') then |
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397 | begin |
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398 | result := result and _DeleteDirectory(IncludeTrailingPathDelimiter(Name) + F.Name); |
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399 | end; |
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400 | end |
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401 | else |
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402 | begin |
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403 | if not DeleteFile(IncludeTrailingPathDelimiter(Name) + F.Name) then result := false; |
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404 | end; |
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405 | until FindNext(F) <> 0; |
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406 | finally |
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407 | FindClose(F); |
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408 | end; |
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409 | if not RemoveDir(Name) then result := false; |
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410 | end; |
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411 | end; |
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412 | |||
30 | daniel-mar | 413 | function _FileSize(FileName: string): int64; |
12 | daniel-mar | 414 | var |
25 | daniel-mar | 415 | fs: TFileStream; |
12 | daniel-mar | 416 | begin |
25 | daniel-mar | 417 | fs := TFileStream.Create(FileName, fmOpenRead); |
418 | try |
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419 | result := fs.size; |
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420 | finally |
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421 | fs.free; |
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422 | end; |
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12 | daniel-mar | 423 | end; |
424 | |||
425 | function _DriveNum(Drive: Char): Byte; |
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426 | // a->0, ..., z->25 |
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427 | var |
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428 | tmp: string; |
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429 | begin |
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430 | tmp := LowerCase(Drive); |
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431 | result := Ord(tmp[1])-Ord('a'); |
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432 | end; |
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433 | |||
434 | function _registryReadDump(AReg: TRegistry; AName: string): string; |
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435 | const |
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436 | // Win2000 RegEdit has set the max input length of a REG_BINARY to $3FFF. |
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437 | // Probably its the longest possible binary string and not just a GUI limit. |
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438 | BufMax = $3FFF; |
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439 | var |
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440 | buf: array[0..BufMax] of byte; |
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441 | i: integer; |
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442 | realsize: integer; |
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443 | begin |
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444 | realsize := AReg.ReadBinaryData(AName, buf, SizeOf(buf)); |
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445 | |||
446 | for i := 0 to realsize-1 do |
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447 | begin |
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448 | result := result + chr(buf[i]); |
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449 | end; |
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450 | end; |
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451 | |||
452 | function _GetStringFromDLL(filename: string; num: integer): string; |
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453 | const |
||
454 | // http://www.eggheadcafe.com/forumarchives/vcmfc/sep2005/post23917443.asp |
||
455 | MAX_BUF = 4097; // OK? |
||
456 | var |
||
457 | hLib: THandle; |
||
458 | buf: array[0..MAX_BUF] of char; |
||
459 | begin |
||
460 | hLib := LoadLibrary(PChar(filename)); |
||
461 | try |
||
462 | LoadString(hLib, num, buf, sizeof(buf)); |
||
463 | result := buf; |
||
464 | finally |
||
465 | FreeLibrary(hLib); |
||
466 | end; |
||
467 | end; |
||
468 | |||
469 | // http://www.delphi-library.de/topic_Umgebungsvariable+in+einem+String+aufloesen_20516,0.html |
||
470 | function _ExpandEnvStr(const szInput: string): string; |
||
471 | const |
||
472 | MAXSIZE = 32768; // laut PSDK sind 32k das Maximum |
||
473 | begin |
||
474 | SetLength(Result,MAXSIZE); |
||
475 | SetLength(Result,ExpandEnvironmentStrings(pchar(szInput), |
||
476 | @Result[1],length(Result))-1); //-1 um abschließendes #0 zu verwerfen |
||
477 | end; |
||
478 | |||
479 | // Beispiele |
||
480 | // Papierkorb -- Windows 95 |
||
481 | // @C:\WINNT\system32\shell32.dll,-8964@1031,Papierkorb -- Windows 2000 |
||
482 | |||
483 | function _DecodeReferenceString(s: string): string; |
||
484 | var |
||
485 | dll, id, lang, cache: string; |
||
486 | sl, sl2: tstringlist; |
||
487 | begin |
||
488 | if Copy(s, 1, 1) = '@' then |
||
489 | begin |
||
490 | // Referenz auf eine DLL |
||
491 | // @<dll>,-<id>[@<lang>][,<cache>] |
||
492 | |||
493 | sl := TStringList.Create; |
||
494 | try |
||
495 | // '@' am Anfang entfernen |
||
496 | s := Copy(s, 2, length(s)-1); |
||
497 | |||
498 | // Nach ',' auftrennen |
||
499 | // sl[0] --> dll |
||
500 | // sl[1] --> -id@lang |
||
501 | // sl[2] --> cache |
||
502 | sl.CommaText := s; |
||
503 | |||
504 | if sl.Count > 2 then |
||
505 | begin |
||
506 | // Das Ergebnis ist bereits im Klartext vorhanden und muss nicht extrahiert werden |
||
507 | // Ist bei Windows 2000 der Fall |
||
508 | cache := sl[2]; |
||
509 | result := cache; |
||
510 | exit; |
||
511 | end; |
||
512 | |||
513 | if sl.Count > 1 then |
||
514 | begin |
||
515 | dll := sl[0]; |
||
516 | |||
517 | sl2 := TStringList.Create; |
||
518 | try |
||
519 | // Nach '@' auftrennen |
||
520 | // sl2[0] --> id |
||
521 | // sl2[1] --> lang |
||
522 | sl2.CommaText := StringReplace(sl[1], '@', ',', [rfReplaceAll]); |
||
523 | |||
524 | id := sl2[0]; |
||
525 | |||
526 | if sl2.Count > 1 then |
||
527 | begin |
||
528 | // ToDo: In Zukunft beachten, sofern möglich |
||
529 | lang := sl2[1]; |
||
530 | end; |
||
531 | |||
532 | // Umgebungsvariablen erkennen und Minuszeichen entfernen |
||
533 | result := _GetStringFromDLL(_ExpandEnvStr(dll), -StrToInt(id)); |
||
534 | finally |
||
535 | sl2.Free; |
||
536 | end; |
||
537 | end |
||
538 | else |
||
539 | begin |
||
540 | // Zu wenige Informationen! |
||
541 | |||
542 | result := ''; |
||
543 | end; |
||
544 | finally |
||
545 | sl.Free; |
||
546 | end; |
||
547 | end |
||
548 | else |
||
549 | begin |
||
550 | // Kein Hinweis auf eine Referenz |
||
551 | result := s; |
||
552 | end; |
||
553 | end; |
||
554 | |||
555 | function _readInt8(const Stream: TStream): byte; |
||
556 | var |
||
557 | I: integer; |
||
558 | begin |
||
559 | i := 0; |
||
560 | Stream.ReadBuffer(i, 1); |
||
561 | Result := i; |
||
562 | end; |
||
563 | |||
564 | function _readInt32(const Stream: TStream): Longword; |
||
565 | var |
||
566 | I: integer; |
||
567 | begin |
||
568 | i := 0; |
||
569 | Stream.ReadBuffer(i, 4); |
||
570 | Result := i; |
||
571 | end; |
||
572 | |||
573 | function _readInt64(const Stream: TStream): int64; |
||
574 | var |
||
575 | I: int64; |
||
576 | begin |
||
577 | i := 0; |
||
578 | Stream.ReadBuffer(i, 8); |
||
579 | Result := i; |
||
580 | end; |
||
581 | |||
582 | function _readChar(const Stream: TStream): char; |
||
583 | var |
||
584 | C: Char; |
||
585 | begin |
||
586 | C := #0; |
||
587 | Stream.ReadBuffer(C, 1); |
||
588 | Result := C; |
||
589 | end; |
||
590 | |||
591 | function _readNullTerminatedString(const Stream: TStream): String; |
||
592 | var |
||
593 | S: String; |
||
594 | C: Char; |
||
595 | begin |
||
596 | S := ''; |
||
597 | repeat |
||
598 | Stream.ReadBuffer(C, 1); |
||
599 | if (C <> #0) then |
||
600 | S := S + C; |
||
601 | until C = #0; |
||
602 | Result := S; |
||
603 | end; |
||
604 | |||
605 | // http://www.delphipraxis.net/post761928.html#761928 |
||
606 | function _readNullTerminatedWideString(const Stream: TStream): WideString; |
||
607 | var |
||
608 | S: WideString; |
||
609 | WC: WideChar; |
||
610 | begin |
||
611 | S := ''; |
||
612 | repeat |
||
613 | Stream.ReadBuffer(WC, 2); |
||
614 | if (WC <> #0) then |
||
615 | S := S + WC; |
||
616 | until WC = #0; |
||
617 | Result := S; |
||
618 | end; |
||
619 | |||
620 | // http://www.delphipraxis.net/post340194.html#340194 |
||
621 | function _nowUTC: TDateTime; |
||
622 | var |
||
623 | SystemTime: TSystemTime; |
||
624 | begin |
||
625 | GetSystemTime(SystemTime); |
||
626 | with SystemTime do |
||
627 | begin |
||
628 | Result := EncodeDate(wYear, wMonth, wDay) + |
||
629 | EncodeTime(wHour, wMinute, wSecond, wMilliseconds); |
||
630 | end; |
||
631 | end; |
||
632 | |||
633 | {$IFDEF DEL6UP} |
||
634 | function _getGMTDifference(): extended; |
||
635 | begin |
||
636 | result := - (datetimetounix(_nowUTC())-datetimetounix(Now())) / 3600; |
||
637 | end; |
||
638 | |||
639 | function _fileTimeToDateTime(FileTime: int64): TDateTime; |
||
640 | begin |
||
641 | // http://www.e-fense.com/helix/Docs/Recycler_Bin_Record_Reconstruction.pdf |
||
642 | // UnixTime = 0.0000001 * NTTime + 11644473600 |
||
643 | // This is wrong! The correct formula is: |
||
644 | // UnixTime = 0.0000001 * NTTime - 11644473600 + c * 3600 |
||
645 | // c = GMT-Difference (MEZ = 1) inclusive daylight saving time (+3600 seconds) |
||
646 | result := unixtodatetime(FileTime div 10000000 - 11644473600 + round(_getGMTDifference() * 3600)); |
||
647 | end; |
||
648 | {$ENDIF} |
||
649 | |||
650 | // http://www.delphipraxis.net/post471470.html |
||
651 | function _getAccountSid(const Server, User: WideString; var Sid: PSID): DWORD; |
||
652 | var |
||
653 | dwDomainSize, dwSidSize: DWord; |
||
654 | R: LongBool; |
||
655 | wDomain: WideString; |
||
656 | Use: DWord; |
||
657 | begin |
||
658 | Result := 0; |
||
659 | SetLastError(0); |
||
660 | dwSidSize := 0; |
||
661 | dwDomainSize := 0; |
||
662 | R := LookupAccountNameW(PWideChar(Server), PWideChar(User), nil, dwSidSize, |
||
663 | nil, dwDomainSize, Use); |
||
664 | if (not R) and (GetLastError = ERROR_INSUFFICIENT_BUFFER) then |
||
665 | begin |
||
666 | SetLength(wDomain, dwDomainSize); |
||
667 | Sid := GetMemory(dwSidSize); |
||
668 | R := LookupAccountNameW(PWideChar(Server), PWideChar(User), Sid, |
||
669 | dwSidSize, PWideChar(wDomain), dwDomainSize, Use); |
||
670 | if not R then |
||
671 | begin |
||
672 | FreeMemory(Sid); |
||
673 | Sid := nil; |
||
674 | end; |
||
675 | end |
||
676 | else |
||
677 | Result := GetLastError; |
||
678 | end; |
||
679 | |||
67 | daniel-mar | 680 | const |
681 | UNLEN = 256; // lmcons.h |
||
682 | |||
12 | daniel-mar | 683 | // Template: |
684 | // http://www.latiumsoftware.com/en/pascal/0014.php |
||
685 | function _getLoginNameW: widestring; |
||
686 | var |
||
67 | daniel-mar | 687 | Buffer: array[0..UNLEN] of widechar; |
688 | Size: DWORD; |
||
12 | daniel-mar | 689 | begin |
67 | daniel-mar | 690 | Size := SizeOf(Buffer); |
12 | daniel-mar | 691 | if GetUserNameW(Buffer, Size) then |
692 | Result := Buffer |
||
693 | else |
||
694 | Result := 'User'; |
||
695 | end; |
||
696 | |||
67 | daniel-mar | 697 | function _ConvertSidToStringSidA(SID: PSID; var strSID: LPSTR): boolean; |
12 | daniel-mar | 698 | type |
699 | DllReg = function(SID: PSID; var StringSid: LPSTR): Boolean; stdcall; |
||
700 | var |
||
701 | hDll: THandle; |
||
702 | dr: DllReg; |
||
703 | begin |
||
704 | result := false; |
||
705 | hDll := LoadLibrary(advapi32); |
||
706 | if hDll <> 0 then |
||
707 | begin |
||
708 | @dr := GetProcAddress(hDll, 'ConvertSidToStringSidA'); |
||
67 | daniel-mar | 709 | |
12 | daniel-mar | 710 | if assigned(dr) then |
711 | begin |
||
712 | result := dr(SID, strSID); |
||
713 | end; |
||
714 | end; |
||
715 | end; |
||
716 | |||
67 | daniel-mar | 717 | const |
718 | winternl_lib = 'Ntdll.dll'; |
||
719 | |||
720 | type |
||
721 | USHORT = Word; |
||
722 | PWSTR = PWidechar; |
||
723 | PCWSTR = PWideChar; |
||
724 | |||
725 | NTSTATUS = Longword; |
||
726 | |||
727 | _UNICODE_STRING = record |
||
728 | Length: USHORT; |
||
729 | MaximumLength: USHORT; |
||
730 | Buffer: PWSTR; |
||
731 | end; |
||
732 | UNICODE_STRING = _UNICODE_STRING; |
||
733 | PUNICODE_STRING = ^UNICODE_STRING; |
||
734 | |||
735 | function _RtlConvertSidToUnicodeString( |
||
736 | UnicodeString: PUNICODE_STRING; |
||
737 | Sid: PSID; |
||
738 | AllocateDestinationString: BOOLEAN): NTSTATUS; stdcall; |
||
739 | type |
||
740 | DllReg = function(UnicodeString: PUNICODE_STRING; |
||
741 | Sid: PSID; |
||
742 | AllocateDestinationString: BOOLEAN): NTSTATUS; stdcall; |
||
743 | var |
||
744 | hDll: THandle; |
||
745 | dr: DllReg; |
||
746 | begin |
||
747 | result := $FFFFFFFF; |
||
748 | hDll := LoadLibrary(winternl_lib); |
||
749 | if hDll = 0 then Exit; |
||
750 | try |
||
751 | @dr := GetProcAddress(hDll, 'RtlConvertSidToUnicodeString'); |
||
752 | if not Assigned(dr) then Exit; |
||
753 | result := dr(UnicodeString, Sid, AllocateDestinationString); |
||
754 | finally |
||
755 | FreeLibrary(hDll); |
||
756 | end; |
||
757 | end; |
||
758 | |||
759 | procedure _RtlFreeUnicodeString(UnicodeString: PUNICODE_STRING); stdcall; |
||
760 | type |
||
761 | DllReg = procedure(UnicodeString: PUNICODE_STRING); stdcall; |
||
762 | var |
||
763 | hDll: THandle; |
||
764 | dr: DllReg; |
||
765 | begin |
||
766 | hDll := LoadLibrary(winternl_lib); |
||
767 | if hDll = 0 then Exit; |
||
768 | try |
||
769 | @dr := GetProcAddress(hDll, 'RtlFreeUnicodeString'); |
||
770 | if not Assigned(dr) then Exit; |
||
771 | dr(UnicodeString); |
||
772 | finally |
||
773 | FreeLibrary(hDll); |
||
774 | end; |
||
775 | end; |
||
776 | |||
777 | function _NT_SidToString(SID: PSID; var strSID: string): boolean; |
||
778 | var |
||
779 | pus: PUNICODE_STRING; |
||
780 | us: UNICODE_STRING; |
||
781 | begin |
||
782 | pus := @us; |
||
783 | result := _RtlConvertSidToUnicodeString(pus, SID, true) = 0; |
||
784 | if not result then Exit; |
||
785 | strSID := pus^.Buffer; |
||
786 | UniqueString(strSID); |
||
787 | _RtlFreeUnicodeString(pus); |
||
788 | result := true; |
||
789 | end; |
||
790 | |||
79 | daniel-mar | 791 | // Source: http://www.delphipraxis.net/post471470.html |
792 | // Modified |
||
12 | daniel-mar | 793 | function _getMySID(): string; |
794 | var |
||
795 | SID: PSID; |
||
796 | strSID: PAnsiChar; |
||
797 | err: DWORD; |
||
798 | begin |
||
799 | SID := nil; |
||
800 | |||
801 | err := _getAccountSid('', _getLoginNameW(), SID); |
||
79 | daniel-mar | 802 | try |
803 | if err > 0 then |
||
804 | begin |
||
805 | EAPICallError.Create('_getAccountSid:' + SysErrorMessage(err)); |
||
806 | Exit; |
||
807 | end; |
||
12 | daniel-mar | 808 | |
79 | daniel-mar | 809 | if _ConvertSidToStringSidA(SID, strSID) then |
810 | begin |
||
811 | result := string(strSID); |
||
812 | Exit; |
||
813 | end; |
||
12 | daniel-mar | 814 | |
79 | daniel-mar | 815 | if _NT_SidToString(SID, result) then Exit; |
67 | daniel-mar | 816 | |
79 | daniel-mar | 817 | EAPICallError.Create('_getMySID:' + SysErrorMessage(err)); |
818 | finally |
||
819 | if Assigned(SID) then FreeMemory(SID); |
||
820 | end; |
||
12 | daniel-mar | 821 | end; |
822 | |||
823 | // Originalcode aus http://www.delphipraxis.net/post2933.html |
||
824 | function _DriveExists(DriveByte: Byte): Boolean; overload; |
||
825 | begin |
||
826 | Result := GetLogicalDrives and (1 shl DriveByte) <> 0; |
||
827 | end; |
||
828 | |||
829 | function _driveExists(Drive: Char): Boolean; overload; |
||
830 | var |
||
831 | DriveByte: Byte; |
||
832 | tmp: string; |
||
833 | begin |
||
834 | // Make drive letter upper case (for older Delphi versions) |
||
835 | tmp := UpperCase(Drive); |
||
836 | Drive := tmp[1]; |
||
837 | |||
838 | DriveByte := Ord(Drive) - Ord('A'); |
||
839 | Result := _DriveExists(DriveByte); |
||
840 | end; |
||
841 | |||
842 | function _isFAT(drive: char): boolean; |
||
843 | var |
||
844 | Dummy2: DWORD; |
||
845 | Dummy3: DWORD; |
||
846 | FileSystem: array[0..MAX_PATH] of char; |
||
847 | VolumeName: array[0..MAX_PATH] of char; |
||
848 | s: string; |
||
849 | begin |
||
850 | result := false; |
||
851 | if _driveExists(drive) then |
||
852 | begin |
||
853 | s := drive + DriveDelim + PathDelim; // ohne die Auslagerung in einen String kommt es zu einer AV in ntdll |
||
854 | GetVolumeInformation(PChar(s), VolumeName, |
||
855 | SizeOf(VolumeName), nil, Dummy2, Dummy3, FileSystem, SizeOf(FileSystem)); |
||
856 | result := uppercase(copy(FileSystem, 0, 3)) = 'FAT'; |
||
857 | end; |
||
858 | end; |
||
859 | |||
860 | // ********************************************************** |
||
25 | daniel-mar | 861 | // VISTA AND WINDOWS 7 FUNCTIONS, INTERNAL USED |
12 | daniel-mar | 862 | // ********************************************************** |
863 | |||
25 | daniel-mar | 864 | const |
865 | vista_valid_index_size = $220; // 544 |
||
866 | |||
12 | daniel-mar | 867 | function _isFileVistaRealfile(filename: string): boolean; |
868 | begin |
||
869 | result := uppercase(copy(extractfilename(filename), 0, 2)) = '$R'; |
||
870 | end; |
||
871 | |||
872 | function _isFileVistaIndexfile(filename: string): boolean; |
||
873 | begin |
||
874 | result := uppercase(copy(extractfilename(filename), 0, 2)) = '$I'; |
||
875 | end; |
||
876 | |||
877 | function _isFileVistaNamed(filename: string): boolean; |
||
878 | begin |
||
879 | result := _isFileVistaIndexfile(filename) or |
||
880 | _isFileVistaRealfile(filename); |
||
881 | end; |
||
882 | |||
883 | function _VistaChangeRealfileToIndexfile(realfile: string): string; |
||
884 | begin |
||
885 | if _isFileVistaRealfile(realfile) then |
||
886 | begin |
||
887 | result := extractfilepath(realfile)+'$I'+ |
||
888 | copy(extractfilename(realfile), 3, length(extractfilename(realfile))-2); |
||
889 | end |
||
890 | else |
||
891 | result := realfile; // ignore, even if it is not a vista recycle-file |
||
892 | end; |
||
893 | |||
894 | function _VistaChangeIndexfileToRealfile(indexfile: string): string; |
||
895 | begin |
||
896 | if _isFileVistaIndexfile(indexfile) then |
||
897 | begin |
||
898 | result := extractfilepath(indexfile)+'$R'+ |
||
899 | copy(extractfilename(indexfile), 3, length(extractfilename(indexfile))-2); |
||
900 | end |
||
901 | else |
||
902 | result := indexfile; // ignore, even if it is not a vista recycle-file |
||
903 | end; |
||
904 | |||
905 | procedure _VistaListIndexes(recyclerpath: string; result: TStringList); |
||
906 | var |
||
907 | sr: TSearchRec; |
||
908 | r: Integer; |
||
909 | tmp: string; |
||
910 | begin |
||
911 | tmp := recyclerpath; |
||
912 | tmp := IncludeTrailingBackslash(tmp); |
||
913 | |||
914 | if not directoryexists(tmp) then exit; |
||
915 | |||
916 | r := FindFirst(tmp+PathDelim + '$I*', faAnyFile, sr); |
||
917 | while r = 0 do |
||
918 | begin |
||
919 | if (sr.Name <> '.') and (sr.Name <> '..') then |
||
920 | begin |
||
25 | daniel-mar | 921 | if sr.Size = vista_valid_index_size then |
12 | daniel-mar | 922 | begin |
923 | result.Add(copy(sr.name, 3, length(sr.name)-2)); |
||
924 | end; |
||
925 | end; |
||
926 | r := FindNext(sr); |
||
927 | end; |
||
928 | |||
929 | FindClose(sr); |
||
930 | end; |
||
931 | |||
932 | function _VistaCurrentFilename(infofilename: string): string; |
||
933 | begin |
||
934 | result := extractfilename(infofilename); |
||
935 | |||
936 | if _isFileVistaRealfile(result) then |
||
937 | begin |
||
938 | exit; |
||
939 | end; |
||
940 | |||
941 | if _isFileVistaIndexfile(result) then |
||
942 | begin |
||
943 | result := _VistaChangeIndexfileToRealfile(result); |
||
944 | exit; |
||
945 | end; |
||
946 | |||
947 | result := copy(result, 3, length(result)-2); |
||
948 | result := '$R'+result; |
||
949 | end; |
||
950 | |||
951 | function _VistaGetSourceDrive(infofile: string): char; |
||
952 | var |
||
953 | fs: TFileStream; |
||
954 | tmp: string; |
||
955 | const |
||
956 | drive_vista_position = $18; |
||
957 | begin |
||
958 | result := #0; |
||
959 | |||
960 | tmp := infofile; |
||
961 | tmp := _VistaChangeRealfileToIndexfile(tmp); |
||
962 | if not fileexists(tmp) then exit; |
||
963 | |||
964 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
965 | try |
||
966 | fs.seek(drive_vista_position, soFromBeginning); |
||
967 | result := _readChar(fs); |
||
968 | finally |
||
969 | fs.free; |
||
970 | end; |
||
971 | end; |
||
972 | |||
973 | {$IFDEF DEL6UP} |
||
974 | function _VistaGetDateTime(infofile: string): TDateTime; |
||
975 | var |
||
976 | fs: TFileStream; |
||
977 | tmp: string; |
||
978 | const |
||
979 | timestamp_vista_position = $10; |
||
980 | begin |
||
981 | result := EncodeDateTime(1601, 1, 1, 0, 0, 0, 0); |
||
982 | |||
983 | tmp := infofile; |
||
984 | tmp := _VistaChangeRealfileToIndexfile(tmp); |
||
985 | if not fileexists(tmp) then exit; |
||
986 | |||
987 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
988 | try |
||
989 | fs.seek(timestamp_vista_position, soFromBeginning); |
||
990 | result := _fileTimeToDateTime(_readInt64(fs)); |
||
991 | finally |
||
992 | fs.free; |
||
993 | end; |
||
994 | end; |
||
995 | {$ENDIF} |
||
996 | |||
997 | function _VistaGetSourceUnicode(infofile: string): string; |
||
998 | var |
||
999 | fs: TFileStream; |
||
1000 | tmp: string; |
||
1001 | const |
||
1002 | unicode_vista_position = $18; |
||
1003 | begin |
||
1004 | result := ''; |
||
1005 | |||
1006 | tmp := infofile; |
||
1007 | tmp := _VistaChangeRealfileToIndexfile(tmp); |
||
1008 | if not fileexists(tmp) then exit; |
||
1009 | |||
1010 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1011 | try |
||
1012 | fs.seek(unicode_vista_position, soFromBeginning); |
||
1013 | result := _readNullTerminatedWideString(fs); |
||
1014 | finally |
||
1015 | fs.free; |
||
1016 | end; |
||
1017 | end; |
||
1018 | |||
1019 | function _VistaOriginalSize(infofile: string): integer; |
||
1020 | var |
||
1021 | fs: TFileStream; |
||
1022 | tmp: string; |
||
1023 | const |
||
1024 | size_vista_position = $8; |
||
1025 | begin |
||
1026 | result := -1; |
||
1027 | |||
1028 | tmp := infofile; |
||
1029 | tmp := _VistaChangeRealfileToIndexfile(tmp); |
||
1030 | if not fileexists(tmp) then exit; |
||
1031 | |||
1032 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1033 | try |
||
1034 | fs.seek(size_vista_position, soFromBeginning); |
||
1035 | result := _readInt32(fs); |
||
1036 | finally |
||
1037 | fs.free; |
||
1038 | end; |
||
1039 | end; |
||
1040 | |||
1041 | function _checkInfo1or2File(filename: string): boolean; |
||
1042 | var |
||
1043 | fs: TStream; |
||
1044 | record_length: integer; |
||
1045 | const |
||
1046 | length_position = $C; |
||
1047 | empty_size = 20; |
||
1048 | begin |
||
1049 | fs := TFileStream.Create(filename, fmOpenRead); |
||
1050 | try |
||
1051 | fs.seek(length_position, soFromBeginning); |
||
1052 | record_length := _readInt32(fs); |
||
1053 | |||
1054 | // Check the file length |
||
1055 | if record_length = 0 then |
||
1056 | result := false |
||
1057 | else |
||
1058 | result := (fs.size - empty_size) mod record_length = 0; |
||
1059 | finally |
||
1060 | fs.free; |
||
1061 | end; |
||
1062 | end; |
||
1063 | |||
1064 | function _VistaIsValid(infofile: string): boolean; |
||
1065 | var |
||
1066 | tmp: string; |
||
1067 | begin |
||
1068 | result := false; |
||
1069 | |||
1070 | tmp := infofile; |
||
1071 | tmp := _VistaChangeRealfileToIndexfile(tmp); |
||
1072 | if not fileexists(tmp) then exit; |
||
1073 | |||
25 | daniel-mar | 1074 | // Check the file length |
30 | daniel-mar | 1075 | result := _FileSize(tmp) = vista_valid_index_size; |
12 | daniel-mar | 1076 | end; |
1077 | |||
1078 | // ********************************************************** |
||
1079 | // PUBLIC FUNCTIONS |
||
1080 | // ********************************************************** |
||
1081 | |||
1082 | {$IFDEF DEL6UP} |
||
1083 | |||
1084 | function RecyclerGetDateTime(InfofileOrRecycleFolder: string): tdatetime; overload; |
||
1085 | begin |
||
1086 | result := RecyclerGetDateTime(InfofileOrRecycleFolder, ''); |
||
1087 | end; |
||
1088 | |||
1089 | function RecyclerGetDateTime(drive: char; fileid: string): tdatetime; overload; |
||
1090 | begin |
||
1091 | result := RecyclerGetDateTime(drive, '', fileid); |
||
1092 | end; |
||
1093 | |||
1094 | function RecyclerGetDateTime(drive: char; UserSID: string; fileid: string): tdatetime; overload; |
||
1095 | var |
||
1096 | infofile: string; |
||
1097 | begin |
||
1098 | infofile := RecyclerGetPath(drive, UserSID, true, fileid); |
||
1099 | result := RecyclerGetDateTime(infofile, fileid); |
||
1100 | end; |
||
1101 | |||
1102 | function RecyclerGetDateTime(InfofileOrRecycleFolder: string; id: string): tdatetime; overload; |
||
1103 | var |
||
1104 | fs: TFileStream; |
||
1105 | i, record_length: integer; |
||
1106 | tmp: string; |
||
1107 | const |
||
1108 | length_position = $C; |
||
1109 | unique_index_position = $118; |
||
1110 | timestamp_position = $120; |
||
1111 | begin |
||
1112 | // FILETIME does start at 01.01.1601 00:00:00 (GMT) |
||
1113 | result := EncodeDateTime(1601, 1, 1, 0, 0, 0, 0); |
||
1114 | |||
1115 | tmp := InfofileOrRecycleFolder; |
||
1116 | |||
1117 | if _isFileVistaNamed(tmp) then |
||
1118 | begin |
||
1119 | result := _VistaGetDateTime(tmp); |
||
1120 | exit; |
||
1121 | end; |
||
1122 | |||
1123 | {$IFDEF allow_all_filenames} |
||
1124 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1125 | begin |
||
1126 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1127 | tmp := extractfilepath(tmp)+'INFO2' |
||
1128 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1129 | tmp := extractfilepath(tmp)+'INFO'; |
||
1130 | end; |
||
1131 | {$ENDIF} |
||
1132 | |||
1133 | if directoryexists(tmp) then |
||
1134 | begin |
||
1135 | tmp := IncludeTrailingBackslash(tmp); |
||
1136 | |||
1137 | if fileexists(tmp+'$I'+id) then |
||
1138 | begin |
||
1139 | result := _VistaGetDateTime(tmp+'$I'+id); |
||
1140 | exit; |
||
1141 | end |
||
1142 | else if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1143 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO'; |
||
1144 | end; |
||
1145 | |||
1146 | if not fileexists(tmp) then exit; |
||
1147 | if not RecyclerIsValid(tmp) then exit; |
||
1148 | |||
1149 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1150 | try |
||
1151 | fs.seek(length_position, soFromBeginning); |
||
1152 | record_length := _readInt32(fs); |
||
1153 | |||
1154 | i := -1; |
||
1155 | repeat |
||
1156 | inc(i); |
||
1157 | if unique_index_position+i*record_length > fs.size then break; |
||
1158 | fs.seek(unique_index_position+i*record_length, soFromBeginning); |
||
1159 | if inttostr(_readInt32(fs)) = id then |
||
1160 | begin |
||
1161 | fs.seek(timestamp_position+i*record_length, soFromBeginning); |
||
1162 | result := _fileTimeToDateTime(_readInt64(fs)); |
||
1163 | break; |
||
1164 | end; |
||
1165 | until false; |
||
1166 | finally |
||
1167 | fs.free; |
||
1168 | end; |
||
1169 | end; |
||
1170 | |||
1171 | {$ENDIF} |
||
1172 | |||
1173 | //////////////////////////////////////////////////////////////////////////////// |
||
1174 | |||
1175 | function RecyclerGetSourceUnicode(InfofileOrRecycleFolder: string): WideString; overload; |
||
1176 | begin |
||
1177 | result := RecyclerGetSourceUnicode(InfofileOrRecycleFolder, ''); |
||
1178 | end; |
||
1179 | |||
1180 | function RecyclerGetSourceUnicode(drive: char; fileid: string): WideString; overload; |
||
1181 | begin |
||
1182 | result := RecyclerGetSourceUnicode(drive, '', fileid); |
||
1183 | end; |
||
1184 | |||
1185 | function RecyclerGetSourceUnicode(drive: char; UserSID: string; fileid: string): WideString; overload; |
||
1186 | var |
||
1187 | infofile: string; |
||
1188 | begin |
||
1189 | if Win32Platform = VER_PLATFORM_WIN32_NT then |
||
1190 | begin |
||
1191 | infofile := RecyclerGetPath(drive, UserSID, true, fileid); |
||
1192 | result := RecyclerGetSourceUnicode(infofile, fileid); |
||
1193 | end |
||
1194 | else |
||
1195 | begin |
||
1196 | // Windows 9x does not support unicode |
||
1197 | result := RecyclerGetSource(drive, UserSID, fileid); |
||
1198 | end; |
||
1199 | end; |
||
1200 | |||
1201 | function RecyclerGetSourceUnicode(InfofileOrRecycleFolder: string; id: string): WideString; overload; |
||
1202 | var |
||
1203 | fs: TFileStream; |
||
1204 | i, record_length: integer; |
||
1205 | tmp: string; |
||
1206 | const |
||
1207 | length_position = $C; |
||
1208 | unique_index_position = $118; |
||
1209 | unicode_source_position = $12C; |
||
1210 | begin |
||
1211 | result := ''; |
||
1212 | |||
1213 | tmp := InfofileOrRecycleFolder; |
||
1214 | |||
1215 | if _isFileVistaNamed(tmp) then |
||
1216 | begin |
||
1217 | // Vista only gives unicode names |
||
1218 | result := _VistaGetSourceUnicode(tmp); |
||
1219 | exit; |
||
1220 | end; |
||
1221 | |||
1222 | {$IFDEF allow_all_filenames} |
||
1223 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1224 | begin |
||
1225 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1226 | tmp := extractfilepath(tmp)+'INFO2' |
||
1227 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1228 | tmp := extractfilepath(tmp)+'INFO'; |
||
1229 | end; |
||
1230 | {$ENDIF} |
||
1231 | |||
1232 | if directoryexists(tmp) then |
||
1233 | begin |
||
1234 | tmp := IncludeTrailingBackslash(tmp); |
||
1235 | |||
1236 | if fileexists(tmp+'$I'+id) then |
||
1237 | begin |
||
1238 | // Vista only gives unicode names |
||
1239 | result := _VistaGetSourceUnicode(tmp+'$I'+id); |
||
1240 | exit; |
||
1241 | end |
||
1242 | else if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1243 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO'; |
||
1244 | end; |
||
1245 | |||
1246 | if not fileexists(tmp) then exit; |
||
1247 | if not RecyclerIsValid(tmp) then exit; |
||
1248 | |||
1249 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1250 | try |
||
1251 | fs.seek(length_position, soFromBeginning); |
||
1252 | record_length := _readInt32(fs); |
||
1253 | |||
1254 | if record_length <> $118 then |
||
1255 | begin |
||
1256 | // Windows NT |
||
1257 | i := -1; |
||
1258 | repeat |
||
1259 | inc(i); |
||
1260 | if unique_index_position+i*record_length > fs.size then break; |
||
1261 | fs.seek(unique_index_position+i*record_length, soFromBeginning); |
||
1262 | if inttostr(_readInt32(fs)) = id then |
||
1263 | begin |
||
1264 | fs.seek(unicode_source_position+i*record_length, soFromBeginning); |
||
1265 | result := _readNullTerminatedWideString(fs); |
||
1266 | break; |
||
1267 | end; |
||
1268 | until false; |
||
1269 | end; |
||
1270 | finally |
||
1271 | fs.free; |
||
1272 | end; |
||
1273 | |||
1274 | if record_length = $118 then |
||
1275 | begin |
||
1276 | // Windows 9x has no unicode support |
||
1277 | result := RecyclerGetSource(tmp, id); |
||
1278 | end; |
||
1279 | end; |
||
1280 | |||
1281 | //////////////////////////////////////////////////////////////////////////////// |
||
1282 | |||
1283 | function RecyclerGetSource(InfofileOrRecycleFolder: string): string; overload; |
||
1284 | begin |
||
1285 | result := RecyclerGetSource(InfofileOrRecycleFolder, ''); |
||
1286 | end; |
||
1287 | |||
1288 | function RecyclerGetSource(drive: char; fileid: string): string; overload; |
||
1289 | begin |
||
1290 | result := RecyclerGetSource(drive, '', fileid); |
||
1291 | end; |
||
1292 | |||
1293 | function RecyclerGetSource(drive: char; UserSID: string; fileid: string): string; overload; |
||
1294 | var |
||
1295 | infofile: string; |
||
1296 | begin |
||
1297 | infofile := RecyclerGetPath(drive, UserSID, true, fileid); |
||
1298 | result := RecyclerGetSource(infofile, fileid); |
||
1299 | end; |
||
1300 | |||
1301 | function RecyclerGetSource(InfofileOrRecycleFolder: string; id: string): string; overload; |
||
1302 | var |
||
1303 | fs: TFileStream; |
||
1304 | i, record_length: integer; |
||
1305 | tmp: string; |
||
1306 | alternativ: string; |
||
1307 | const |
||
1308 | length_position = $C; |
||
1309 | unique_index_position = $118; |
||
1310 | source_position = $14; |
||
1311 | begin |
||
1312 | result := ''; |
||
1313 | |||
1314 | tmp := InfofileOrRecycleFolder; |
||
1315 | |||
1316 | if _isFileVistaNamed(tmp) then |
||
1317 | begin |
||
1318 | // Vista only gives unicode names |
||
1319 | result := _VistaGetSourceUnicode(tmp); |
||
1320 | exit; |
||
1321 | end; |
||
1322 | |||
1323 | {$IFDEF allow_all_filenames} |
||
1324 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1325 | begin |
||
1326 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1327 | tmp := extractfilepath(tmp)+'INFO2' |
||
1328 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1329 | tmp := extractfilepath(tmp)+'INFO'; |
||
1330 | end; |
||
1331 | {$ENDIF} |
||
1332 | |||
1333 | if directoryexists(tmp) then |
||
1334 | begin |
||
1335 | tmp := IncludeTrailingBackslash(tmp); |
||
1336 | |||
1337 | if fileexists(tmp+'$I'+id) then |
||
1338 | begin |
||
1339 | // Vista only gives unicode names |
||
1340 | result := _VistaGetSourceUnicode(tmp+'$I'+id); |
||
1341 | exit; |
||
1342 | end |
||
1343 | else if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1344 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO'; |
||
1345 | end; |
||
1346 | |||
1347 | if not fileexists(tmp) then exit; |
||
1348 | if not RecyclerIsValid(tmp) then exit; |
||
1349 | |||
1350 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1351 | try |
||
1352 | fs.seek(length_position, soFromBeginning); |
||
1353 | record_length := _readInt32(fs); |
||
1354 | |||
1355 | i := -1; |
||
1356 | repeat |
||
1357 | inc(i); |
||
1358 | if unique_index_position+i*record_length > fs.size then break; |
||
1359 | fs.seek(unique_index_position+i*record_length, soFromBeginning); |
||
1360 | if inttostr(_readInt32(fs)) = id then |
||
1361 | begin |
||
1362 | fs.seek(source_position+i*record_length, soFromBeginning); |
||
1363 | alternativ := _readChar(fs); |
||
1364 | |||
1365 | if alternativ = #0 then |
||
1366 | begin |
||
1367 | fs.seek(source_position+i*record_length+1, soFromBeginning); |
||
1368 | result := _readNullTerminatedString(fs); |
||
1369 | end |
||
1370 | else |
||
1371 | begin |
||
1372 | fs.seek(source_position+i*record_length, soFromBeginning); |
||
1373 | result := _readNullTerminatedString(fs); |
||
1374 | end; |
||
1375 | |||
1376 | break; |
||
1377 | end; |
||
1378 | until false; |
||
1379 | finally |
||
1380 | fs.free; |
||
1381 | end; |
||
1382 | |||
1383 | // In some cases the ansi-source-name is [Null]:\...\ |
||
1384 | if alternativ = #0 then |
||
1385 | begin |
||
1386 | result := RecyclerGetSourceDrive(InfofileOrRecycleFolder, id) + result; |
||
1387 | end; |
||
1388 | end; |
||
1389 | |||
1390 | //////////////////////////////////////////////////////////////////////////////// |
||
1391 | |||
1392 | procedure RecyclerListIndexes(drive: char; result: TStringList); overload; |
||
1393 | begin |
||
1394 | RecyclerListIndexes(drive, '', result); |
||
1395 | end; |
||
1396 | |||
1397 | procedure RecyclerListIndexes(drive: char; UserSID: string; result: TStringList); overload; |
||
1398 | var |
||
1399 | infofile: string; |
||
1400 | begin |
||
1401 | infofile := RecyclerGetPath(drive, UserSID, false); |
||
1402 | RecyclerListIndexes(infofile, result); |
||
1403 | end; |
||
1404 | |||
1405 | procedure RecyclerListIndexes(InfofileOrRecycleFolder: string; result: TStringList); overload; |
||
1406 | var |
||
1407 | fs: TFileStream; |
||
1408 | i, record_length: integer; |
||
1409 | tmp: string; |
||
1410 | const |
||
1411 | length_position = $C; |
||
1412 | unique_index_position = $118; |
||
1413 | begin |
||
1414 | tmp := InfofileOrRecycleFolder; |
||
1415 | |||
1416 | if _isFileVistaNamed(tmp) then |
||
1417 | begin |
||
1418 | _VistaListIndexes(extractfilepath(tmp), result); |
||
1419 | exit; |
||
1420 | end; |
||
1421 | |||
1422 | {$IFDEF allow_all_filenames} |
||
1423 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1424 | begin |
||
1425 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1426 | tmp := extractfilepath(tmp)+'INFO2' |
||
1427 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1428 | tmp := extractfilepath(tmp)+'INFO'; |
||
1429 | end; |
||
1430 | {$ENDIF} |
||
1431 | |||
1432 | if directoryexists(tmp) then |
||
1433 | begin |
||
1434 | tmp := IncludeTrailingBackslash(tmp); |
||
1435 | |||
1436 | if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1437 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO' |
||
1438 | else |
||
1439 | begin |
||
1440 | // Last try: is it a vista-directory? |
||
1441 | _VistaListIndexes(tmp, result); |
||
1442 | exit; |
||
1443 | end; |
||
1444 | end; |
||
1445 | |||
1446 | if not fileexists(tmp) then exit; |
||
1447 | if not RecyclerIsValid(tmp) then exit; |
||
1448 | |||
1449 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1450 | try |
||
1451 | fs.seek(length_position, soFromBeginning); |
||
1452 | record_length := _readInt32(fs); |
||
1453 | |||
1454 | i := -1; |
||
1455 | repeat |
||
1456 | inc(i); |
||
1457 | if unique_index_position+i*record_length > fs.size then break; |
||
1458 | fs.seek(unique_index_position+i*record_length, soFromBeginning); |
||
1459 | |||
1460 | result.Add(inttostr(_readInt32(fs))); |
||
1461 | until false; |
||
1462 | finally |
||
1463 | fs.free; |
||
1464 | end; |
||
1465 | end; |
||
1466 | |||
1467 | //////////////////////////////////////////////////////////////////////////////// |
||
1468 | |||
1469 | function RecyclerGetSourceDrive(InfofileOrRecycleFolder: string): char; overload; |
||
1470 | begin |
||
1471 | result := RecyclerGetSourceDrive(InfofileOrRecycleFolder, ''); |
||
1472 | end; |
||
1473 | |||
1474 | function RecyclerGetSourceDrive(drive: char; fileid: string): char; overload; |
||
1475 | begin |
||
1476 | result := RecyclerGetSourceDrive(drive, '', fileid); |
||
1477 | end; |
||
1478 | |||
1479 | function RecyclerGetSourceDrive(drive: char; UserSID: string; fileid: string): char; overload; |
||
1480 | var |
||
1481 | infofile: string; |
||
1482 | begin |
||
1483 | infofile := RecyclerGetPath(drive, UserSID, true, fileid); |
||
1484 | result := RecyclerGetSourceDrive(infofile, fileid); |
||
1485 | end; |
||
1486 | |||
1487 | function RecyclerGetSourceDrive(InfofileOrRecycleFolder: string; id: string): char; overload; |
||
1488 | var |
||
1489 | fs: TFileStream; |
||
1490 | i, record_length: integer; |
||
1491 | tmp: string; |
||
1492 | const |
||
1493 | length_position = $C; |
||
1494 | unique_index_position = $118; |
||
1495 | source_drive_position = $11C; |
||
1496 | begin |
||
1497 | result := #0; |
||
1498 | |||
1499 | tmp := InfofileOrRecycleFolder; |
||
1500 | |||
1501 | if _isFileVistaNamed(tmp) then |
||
1502 | begin |
||
1503 | result := _VistaGetSourceDrive(tmp); |
||
1504 | exit; |
||
1505 | end; |
||
1506 | |||
1507 | {$IFDEF allow_all_filenames} |
||
1508 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1509 | begin |
||
1510 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1511 | tmp := extractfilepath(tmp)+'INFO2' |
||
1512 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1513 | tmp := extractfilepath(tmp)+'INFO'; |
||
1514 | end; |
||
1515 | {$ENDIF} |
||
1516 | |||
1517 | if directoryexists(tmp) then |
||
1518 | begin |
||
1519 | tmp := IncludeTrailingBackslash(tmp); |
||
1520 | |||
1521 | if fileexists(tmp+'$I'+id) then |
||
1522 | begin |
||
1523 | result := _VistaGetSourceDrive(tmp+'$I'+id); |
||
1524 | exit; |
||
1525 | end |
||
1526 | else if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1527 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO'; |
||
1528 | end; |
||
1529 | |||
1530 | if not fileexists(tmp) then exit; |
||
1531 | if not RecyclerIsValid(tmp) then exit; |
||
1532 | |||
1533 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1534 | try |
||
1535 | fs.seek(length_position, soFromBeginning); |
||
1536 | record_length := _readInt32(fs); |
||
1537 | |||
1538 | i := -1; |
||
1539 | repeat |
||
1540 | inc(i); |
||
1541 | if unique_index_position+i*record_length > fs.size then break; |
||
1542 | fs.seek(unique_index_position+i*record_length, soFromBeginning); |
||
1543 | if inttostr(_readInt32(fs)) = id then |
||
1544 | begin |
||
1545 | fs.seek(source_drive_position+i*record_length, soFromBeginning); |
||
1546 | result := chr(ord('A') + _readInt8(fs)); |
||
1547 | break; |
||
1548 | end; |
||
1549 | until false; |
||
1550 | finally |
||
1551 | fs.free; |
||
1552 | end; |
||
1553 | end; |
||
1554 | |||
1555 | //////////////////////////////////////////////////////////////////////////////// |
||
1556 | |||
1557 | function RecyclerOriginalSize(InfofileOrRecycleFolder: string): integer; overload; |
||
1558 | begin |
||
1559 | result := RecyclerOriginalSize(InfofileOrRecycleFolder, ''); |
||
1560 | end; |
||
1561 | |||
1562 | function RecyclerOriginalSize(drive: char; fileid: string): integer; overload; |
||
1563 | begin |
||
1564 | result := RecyclerOriginalSize(drive, '', fileid); |
||
1565 | end; |
||
1566 | |||
1567 | function RecyclerOriginalSize(drive: char; UserSID: string; fileid: string): integer; overload; |
||
1568 | var |
||
1569 | infofile: string; |
||
1570 | begin |
||
1571 | infofile := RecyclerGetPath(drive, UserSID, true, fileid); |
||
1572 | result := RecyclerOriginalSize(infofile, fileid); |
||
1573 | end; |
||
1574 | |||
1575 | function RecyclerOriginalSize(InfofileOrRecycleFolder: string; id: string): integer; overload; |
||
1576 | var |
||
1577 | fs: TFileStream; |
||
1578 | i, record_length: integer; |
||
1579 | tmp: string; |
||
1580 | const |
||
1581 | length_position = $C; |
||
1582 | unique_index_position = $118; |
||
1583 | original_size_position = $128; |
||
1584 | begin |
||
1585 | result := -1; |
||
1586 | |||
1587 | tmp := InfofileOrRecycleFolder; |
||
1588 | |||
1589 | if _isFileVistaNamed(tmp) then |
||
1590 | begin |
||
1591 | result := _VistaOriginalSize(tmp); |
||
1592 | exit; |
||
1593 | end; |
||
1594 | |||
1595 | {$IFDEF allow_all_filenames} |
||
1596 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1597 | begin |
||
1598 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1599 | tmp := extractfilepath(tmp)+'INFO2' |
||
1600 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1601 | tmp := extractfilepath(tmp)+'INFO'; |
||
1602 | end; |
||
1603 | {$ENDIF} |
||
1604 | |||
1605 | if directoryexists(tmp) then |
||
1606 | begin |
||
1607 | tmp := IncludeTrailingBackslash(tmp); |
||
1608 | |||
1609 | if fileexists(tmp+'$I'+id) then |
||
1610 | begin |
||
1611 | result := _VistaOriginalSize(tmp+'$I'+id); |
||
1612 | exit; |
||
1613 | end |
||
1614 | else if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1615 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO'; |
||
1616 | end; |
||
1617 | |||
1618 | if not fileexists(tmp) then exit; |
||
1619 | if not RecyclerIsValid(tmp) then exit; |
||
1620 | |||
1621 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1622 | try |
||
1623 | fs.seek(length_position, soFromBeginning); |
||
1624 | record_length := _readInt32(fs); |
||
1625 | |||
1626 | i := -1; |
||
1627 | repeat |
||
1628 | inc(i); |
||
1629 | if unique_index_position+i*record_length > fs.size then break; |
||
1630 | fs.seek(unique_index_position+i*record_length, soFromBeginning); |
||
1631 | if inttostr(_readInt32(fs)) = id then |
||
1632 | begin |
||
1633 | fs.seek(original_size_position+i*record_length, soFromBeginning); |
||
1634 | result := _readInt32(fs); |
||
1635 | break; |
||
1636 | end; |
||
1637 | until false; |
||
1638 | finally |
||
1639 | fs.free; |
||
1640 | end; |
||
1641 | end; |
||
1642 | |||
1643 | //////////////////////////////////////////////////////////////////////////////// |
||
1644 | |||
1645 | function RecyclerIsValid(drive: char): boolean; overload; |
||
1646 | begin |
||
67 | daniel-mar | 1647 | // Bei Vista und Win2003 (VM) erhalte ich bei LW A: die Meldung |
23 | daniel-mar | 1648 | // "c0000013 Kein Datenträger". Exception Abfangen geht nicht. |
1649 | // Daher erstmal überprüfen, ob Laufwerk existiert. |
||
1650 | result := false; |
||
1651 | if not RecyclerIsPossible(drive) then exit; |
||
1652 | |||
12 | daniel-mar | 1653 | result := RecyclerIsValid(drive, ''); |
1654 | end; |
||
1655 | |||
1656 | function RecyclerIsValid(drive: char; UserSID: string): boolean; overload; |
||
1657 | var |
||
1658 | infofile: string; |
||
1659 | begin |
||
23 | daniel-mar | 1660 | // Anmerkung siehe oben. |
1661 | result := false; |
||
1662 | if not RecyclerIsPossible(drive) then exit; |
||
1663 | |||
12 | daniel-mar | 1664 | infofile := RecyclerGetPath(drive, UserSID, false); |
1665 | result := RecyclerIsValid(infofile); |
||
1666 | end; |
||
1667 | |||
1668 | function RecyclerIsValid(InfofileOrRecycleFolder: string): boolean; overload; |
||
1669 | var |
||
1670 | tmp: string; |
||
1671 | x: TStringList; |
||
1672 | i: integer; |
||
1673 | eine_fehlerhaft: boolean; |
||
1674 | begin |
||
1675 | result := false; |
||
1676 | |||
1677 | tmp := InfofileOrRecycleFolder; |
||
1678 | |||
1679 | if _isFileVistaNamed(tmp) then |
||
1680 | begin |
||
1681 | result := _VistaIsValid(tmp); |
||
1682 | exit; |
||
1683 | end; |
||
1684 | |||
1685 | {$IFDEF allow_all_filenames} |
||
1686 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1687 | begin |
||
1688 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1689 | tmp := extractfilepath(tmp)+'INFO2' |
||
1690 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1691 | tmp := extractfilepath(tmp)+'INFO'; |
||
1692 | end; |
||
1693 | {$ENDIF} |
||
1694 | |||
1695 | if directoryexists(tmp) then |
||
1696 | begin |
||
1697 | tmp := IncludeTrailingBackslash(tmp); |
||
1698 | |||
1699 | if fileexists(tmp+'INFO2') then |
||
1700 | begin |
||
1701 | result := _checkInfo1or2File(tmp+'INFO2'); |
||
1702 | end; |
||
1703 | |||
1704 | if not result and fileexists(tmp+'INFO') then |
||
1705 | begin |
||
1706 | result := _checkInfo1or2File(tmp+'INFO'); |
||
1707 | end; |
||
1708 | |||
1709 | if not result then |
||
1710 | begin |
||
1711 | // Complete vista-directory declared? |
||
1712 | eine_fehlerhaft := false; |
||
1713 | x := TStringList.Create; |
||
1714 | try |
||
1715 | _VistaListIndexes(tmp, x); |
||
1716 | for i := 0 to x.Count - 1 do |
||
1717 | begin |
||
1718 | if not _VistaIsValid(tmp+'$I'+x.Strings[i]) then |
||
1719 | begin |
||
1720 | eine_fehlerhaft := true; |
||
1721 | end; |
||
1722 | end; |
||
1723 | finally |
||
1724 | x.Free; |
||
1725 | end; |
||
1726 | result := not eine_fehlerhaft; |
||
1727 | end; |
||
1728 | end; |
||
1729 | |||
1730 | if not fileexists(tmp) then exit; |
||
1731 | |||
1732 | result := _checkInfo1or2File(tmp); |
||
1733 | end; |
||
1734 | |||
1735 | //////////////////////////////////////////////////////////////////////////////// |
||
1736 | |||
1737 | function RecyclerCurrentFilename(InfofileOrRecycleFolder: string): string; overload; |
||
1738 | begin |
||
1739 | result := RecyclerCurrentFilename(InfofileOrRecycleFolder, ''); |
||
1740 | end; |
||
1741 | |||
1742 | function RecyclerCurrentFilename(drive: char; fileid: string): string; overload; |
||
1743 | begin |
||
1744 | result := RecyclerCurrentFilename(drive, '', fileid); |
||
1745 | end; |
||
1746 | |||
1747 | function RecyclerCurrentFilename(drive: char; UserSID: string; fileid: string): string; overload; |
||
1748 | var |
||
1749 | infofile: string; |
||
25 | daniel-mar | 1750 | begin |
12 | daniel-mar | 1751 | infofile := RecyclerGetPath(drive, UserSID, true, fileid); |
1752 | result := RecyclerCurrentFilename(infofile, fileid); |
||
1753 | end; |
||
1754 | |||
1755 | function RecyclerCurrentFilename(InfofileOrRecycleFolder: string; id: string): string; overload; |
||
1756 | var |
||
1757 | a, c: string; |
||
1758 | tmp: string; |
||
1759 | begin |
||
1760 | result := ''; |
||
1761 | |||
1762 | tmp := InfofileOrRecycleFolder; |
||
1763 | |||
1764 | if _isFileVistaNamed(tmp) then |
||
1765 | begin |
||
1766 | result := _VistaCurrentFilename(tmp); |
||
1767 | exit; |
||
1768 | end; |
||
1769 | |||
1770 | {$IFDEF allow_all_filenames} |
||
1771 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1772 | begin |
||
1773 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1774 | tmp := extractfilepath(tmp)+'INFO2' |
||
1775 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1776 | tmp := extractfilepath(tmp)+'INFO'; |
||
1777 | end; |
||
1778 | {$ENDIF} |
||
1779 | |||
1780 | if directoryexists(tmp) then |
||
1781 | begin |
||
1782 | tmp := IncludeTrailingBackslash(tmp); |
||
1783 | |||
1784 | if fileexists(tmp+'$I'+id) then |
||
1785 | begin |
||
1786 | result := _VistaCurrentFilename(tmp+'$I'+id); |
||
1787 | exit; |
||
1788 | end |
||
1789 | else if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1790 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO'; |
||
1791 | end; |
||
1792 | |||
1793 | a := RecyclerGetSourceDrive(tmp, id); |
||
1794 | c := extractfileext(RecyclerGetSourceUnicode(tmp, id)); |
||
1795 | if (a <> '') then |
||
1796 | begin |
||
1797 | result := 'D' + a + id + c; |
||
1798 | end; |
||
1799 | end; |
||
1800 | |||
1801 | //////////////////////////////////////////////////////////////////////////////// |
||
1802 | |||
1803 | function RecyclerGetPath(drive: char; UserSID: string; IncludeInfofile: boolean; fileid: string): string; overload; |
||
1804 | var |
||
1805 | sl: TStringList; |
||
1806 | begin |
||
1807 | sl := TStringList.Create; |
||
1808 | try |
||
1809 | RecyclerGetInfofiles(drive, UserSID, IncludeInfofile, fileid, sl); |
||
1810 | if sl.Count > 0 then |
||
1811 | result := ExtractFilePath(sl.Strings[0]) |
||
1812 | else |
||
1813 | result := ''; |
||
1814 | finally |
||
1815 | sl.free; |
||
1816 | end; |
||
1817 | end; |
||
1818 | |||
1819 | function RecyclerGetPath(drive: char; UserSID: string; IncludeInfofile: boolean): string; overload; |
||
1820 | var |
||
1821 | sl: TStringList; |
||
1822 | begin |
||
1823 | sl := TStringList.Create; |
||
1824 | try |
||
1825 | RecyclerGetInfofiles(drive, UserSID, IncludeInfofile, sl); |
||
1826 | if sl.Count > 0 then |
||
1827 | result := ExtractFilePath(sl.Strings[0]) |
||
1828 | else |
||
1829 | result := ''; |
||
1830 | finally |
||
1831 | sl.free; |
||
1832 | end; |
||
1833 | end; |
||
1834 | |||
1835 | function RecyclerGetPath(drive: char; IncludeInfofile: boolean): string; overload; |
||
1836 | var |
||
1837 | sl: TStringList; |
||
1838 | begin |
||
1839 | sl := TStringList.Create; |
||
1840 | try |
||
1841 | RecyclerGetInfofiles(drive, IncludeInfofile, sl); |
||
1842 | if sl.Count > 0 then |
||
1843 | result := ExtractFilePath(sl.Strings[0]) |
||
1844 | else |
||
1845 | result := ''; |
||
1846 | finally |
||
1847 | sl.free; |
||
1848 | end; |
||
1849 | end; |
||
1850 | |||
1851 | function RecyclerGetPath(drive: char; UserSID: string): string; overload; |
||
1852 | var |
||
1853 | sl: TStringList; |
||
1854 | begin |
||
1855 | sl := TStringList.Create; |
||
1856 | try |
||
1857 | RecyclerGetInfofiles(drive, UserSID, sl); |
||
1858 | if sl.Count > 0 then |
||
1859 | result := ExtractFilePath(sl.Strings[0]) |
||
1860 | else |
||
1861 | result := ''; |
||
1862 | finally |
||
1863 | sl.free; |
||
1864 | end; |
||
1865 | end; |
||
1866 | |||
1867 | function RecyclerGetPath(drive: char): string; overload; |
||
1868 | var |
||
1869 | sl: TStringList; |
||
1870 | begin |
||
1871 | sl := TStringList.Create; |
||
1872 | try |
||
1873 | RecyclerGetInfofiles(drive, sl); |
||
1874 | if sl.Count > 0 then |
||
1875 | result := ExtractFilePath(sl.Strings[0]) |
||
1876 | else |
||
1877 | result := ''; |
||
1878 | finally |
||
1879 | sl.free; |
||
1880 | end; |
||
1881 | end; |
||
1882 | |||
1883 | //////////////////////////////////////////////////////////////////////////////// |
||
1884 | |||
1885 | procedure RecyclerGetInfofiles(drive: char; UserSID: string; IncludeInfofile: boolean; fileid: string; result: TStringList); overload; |
||
1886 | var |
||
1887 | dir: string; |
||
1888 | begin |
||
27 | daniel-mar | 1889 | // Find recyclers from Windows Vista or higher |
1890 | |||
1891 | if _isFAT(drive) then |
||
1892 | begin |
||
1893 | dir := drive + DriveDelim + PathDelim + '$recycle.bin' + PathDelim; |
||
1894 | if IncludeInfofile and (fileid <> '') then |
||
12 | daniel-mar | 1895 | begin |
27 | daniel-mar | 1896 | if fileExists(dir + '$I'+fileid) then |
12 | daniel-mar | 1897 | begin |
27 | daniel-mar | 1898 | result.Add(dir + '$I'+fileid); |
1899 | end; |
||
1900 | end |
||
1901 | else |
||
1902 | begin |
||
1903 | if directoryExists(dir) then |
||
1904 | begin |
||
1905 | result.Add(dir); |
||
1906 | end; |
||
1907 | end; |
||
1908 | end |
||
1909 | else |
||
1910 | begin |
||
1911 | if UserSID <> '' then |
||
1912 | begin |
||
1913 | dir := drive + DriveDelim + PathDelim + '$recycle.bin'+PathDelim+UserSID+PathDelim; |
||
1914 | if IncludeInfofile and (fileid <> '') then |
||
1915 | begin |
||
1916 | if fileExists(dir + '$I'+fileid) then |
||
12 | daniel-mar | 1917 | begin |
27 | daniel-mar | 1918 | result.Add(dir + '$I'+fileid); |
12 | daniel-mar | 1919 | end; |
1920 | end |
||
1921 | else |
||
1922 | begin |
||
27 | daniel-mar | 1923 | if directoryExists(dir) then |
12 | daniel-mar | 1924 | begin |
27 | daniel-mar | 1925 | result.Add(dir); |
12 | daniel-mar | 1926 | end; |
1927 | end; |
||
1928 | end |
||
1929 | else |
||
1930 | begin |
||
73 | daniel-mar | 1931 | // TODO: aber vielleicht möchte man die Papierkörbe aller Benutzer (also aller SIDs) finden!!! |
27 | daniel-mar | 1932 | dir := drive + DriveDelim + PathDelim + '$recycle.bin'+PathDelim+_getMySID()+PathDelim; |
1933 | if IncludeInfofile and (fileid <> '') then |
||
12 | daniel-mar | 1934 | begin |
27 | daniel-mar | 1935 | if fileExists(dir + '$I'+fileid) then |
12 | daniel-mar | 1936 | begin |
27 | daniel-mar | 1937 | result.Add(dir + '$I'+fileid); |
12 | daniel-mar | 1938 | end; |
1939 | end |
||
1940 | else |
||
1941 | begin |
||
27 | daniel-mar | 1942 | if directoryExists(dir) then |
12 | daniel-mar | 1943 | begin |
27 | daniel-mar | 1944 | result.Add(dir); |
12 | daniel-mar | 1945 | end; |
1946 | end; |
||
1947 | end; |
||
27 | daniel-mar | 1948 | end; |
1949 | |||
1950 | // Find recyclers from Windows before Vista |
||
1951 | |||
1952 | if _isFAT(drive) then |
||
1953 | begin |
||
1954 | dir := drive + DriveDelim + PathDelim + 'Recycled' + PathDelim; |
||
1955 | if IncludeInfofile then |
||
1956 | begin |
||
1957 | // Both "recycle bins" are possible if you have multiboot (but do overwrite themselfes if you empty them) |
||
1958 | if fileExists(dir + 'INFO2') then |
||
1959 | result.Add(dir + 'INFO2'); // Windows 95 with Internet Explorer 4 Extension or higher Windows versions |
||
1960 | if fileExists(dir + 'INFO') then |
||
1961 | result.Add(dir + 'INFO'); // Windows 95 native |
||
1962 | end |
||
1963 | else |
||
1964 | begin |
||
1965 | if directoryExists(dir) then |
||
1966 | result.Add(dir); |
||
1967 | end; |
||
1968 | end |
||
12 | daniel-mar | 1969 | else |
1970 | begin |
||
27 | daniel-mar | 1971 | if UserSID <> '' then |
12 | daniel-mar | 1972 | begin |
27 | daniel-mar | 1973 | dir := drive + DriveDelim + PathDelim + 'Recycler'+PathDelim+UserSID+PathDelim; |
1974 | if IncludeInfofile then |
||
1975 | begin |
||
1976 | if fileExists(dir + 'INFO2') then |
||
1977 | result.Add(dir + 'INFO2'); |
||
67 | daniel-mar | 1978 | if fileExists(dir + 'INFO') then |
1979 | result.Add(dir + 'INFO'); // Windows NT 4 |
||
27 | daniel-mar | 1980 | end |
1981 | else |
||
1982 | begin |
||
1983 | if directoryExists(dir) then |
||
1984 | result.Add(dir); |
||
1985 | end; |
||
12 | daniel-mar | 1986 | end |
1987 | else |
||
1988 | begin |
||
27 | daniel-mar | 1989 | dir := drive + DriveDelim + PathDelim + 'Recycler'+PathDelim+_getMySID()+PathDelim; |
1990 | if IncludeInfofile then |
||
1991 | begin |
||
1992 | if fileExists(dir + 'INFO2') then |
||
1993 | result.Add(dir + 'INFO2'); |
||
67 | daniel-mar | 1994 | if fileExists(dir + 'INFO') then |
1995 | result.Add(dir + 'INFO'); // Windows NT 4 |
||
27 | daniel-mar | 1996 | end |
1997 | else |
||
1998 | begin |
||
1999 | if directoryExists(dir) then |
||
2000 | result.Add(dir); |
||
2001 | end; |
||
12 | daniel-mar | 2002 | end; |
27 | daniel-mar | 2003 | end; |
12 | daniel-mar | 2004 | end; |
2005 | |||
2006 | procedure RecyclerGetInfofiles(drive: char; UserSID: string; IncludeInfofile: boolean; result: TStringList); overload; |
||
2007 | begin |
||
2008 | RecyclerGetInfofiles(drive, UserSID, IncludeInfofile, '', result); |
||
2009 | end; |
||
2010 | |||
2011 | procedure RecyclerGetInfofiles(drive: char; IncludeInfofile: boolean; result: TStringList); overload; |
||
2012 | begin |
||
2013 | RecyclerGetInfofiles(drive, '', IncludeInfofile, '', result); |
||
2014 | end; |
||
2015 | |||
2016 | procedure RecyclerGetInfofiles(drive: char; UserSID: string; result: TStringList); overload; |
||
2017 | begin |
||
2018 | RecyclerGetInfofiles(drive, UserSID, false, '', result); |
||
2019 | end; |
||
2020 | |||
2021 | procedure RecyclerGetInfofiles(drive: char; result: TStringList); overload; |
||
2022 | begin |
||
2023 | RecyclerGetInfofiles(drive, '', false, '', result); |
||
2024 | end; |
||
2025 | |||
2026 | //////////////////////////////////////////////////////////////////////////////// |
||
2027 | |||
2028 | function RecyclerCurrentFilenameAndPath(drive: char; UserSID: string; fileid: string): string; overload; |
||
2029 | begin |
||
2030 | result := RecyclerGetPath(drive, UserSID, false, fileid) + |
||
2031 | RecyclerCurrentFilename(drive, UserSID, fileid); |
||
2032 | end; |
||
2033 | |||
2034 | function RecyclerCurrentFilenameAndPath(drive: char; fileid: string): string; overload; |
||
2035 | begin |
||
2036 | result := RecyclerCurrentFilenameAndPath(drive, '', fileid); |
||
2037 | end; |
||
2038 | |||
2039 | function RecyclerCurrentFilenameAndPath(InfofileOrRecycleFolder: string; id: string): string; overload; |
||
2040 | begin |
||
2041 | if RecyclerIsValid(InfofileOrRecycleFolder) then |
||
2042 | begin |
||
2043 | result := extractfilepath(InfofileOrRecycleFolder) + |
||
2044 | RecyclerCurrentFilename(InfofileOrRecycleFolder, id); |
||
2045 | end |
||
2046 | else |
||
2047 | result := ''; |
||
2048 | end; |
||
2049 | |||
2050 | //////////////////////////////////////////////////////////////////////////////// |
||
2051 | |||
2052 | function RecyclerRemoveItem(drive: char; UserSID: string; fileid: string): boolean; overload; |
||
2053 | var |
||
2054 | tmp: string; |
||
2055 | begin |
||
2056 | tmp := RecyclerCurrentFilenameAndPath(drive, UserSID, fileid); |
||
2057 | if fileexists(tmp) then |
||
2058 | begin |
||
2059 | deletefile(tmp); |
||
2060 | result := fileexists(tmp); |
||
2061 | end |
||
2062 | else |
||
2063 | begin |
||
2064 | directoryexists(tmp); |
||
2065 | result := directoryexists(tmp); |
||
2066 | end; |
||
2067 | end; |
||
2068 | |||
2069 | function RecyclerRemoveItem(drive: char; fileid: string): boolean; overload; |
||
2070 | begin |
||
2071 | result := RecyclerRemoveItem(drive, '', fileid); |
||
2072 | end; |
||
2073 | |||
2074 | function RecyclerRemoveItem(InfofileOrRecycleFolder: string; id: string): boolean; overload; |
||
2075 | var |
||
2076 | tmp: string; |
||
2077 | begin |
||
2078 | tmp := RecyclerCurrentFilenameAndPath(InfofileOrRecycleFolder, id); |
||
2079 | if fileexists(tmp) then |
||
2080 | begin |
||
2081 | deletefile(tmp); |
||
2082 | result := fileexists(tmp); |
||
2083 | end |
||
2084 | else |
||
2085 | begin |
||
73 | daniel-mar | 2086 | _DeleteDirectory(tmp); |
12 | daniel-mar | 2087 | result := directoryexists(tmp); |
2088 | end; |
||
2089 | end; |
||
2090 | |||
2091 | procedure RecyclerGetAllRecyclerDrives(result: TStringList); |
||
2092 | var |
||
25 | daniel-mar | 2093 | Drive: char; |
12 | daniel-mar | 2094 | begin |
25 | daniel-mar | 2095 | for Drive := 'A' to 'Z' do |
12 | daniel-mar | 2096 | begin |
25 | daniel-mar | 2097 | if RecyclerIsPossible(Drive) and RecyclerIsValid(Drive) then |
12 | daniel-mar | 2098 | begin |
25 | daniel-mar | 2099 | result.Add(Drive); |
12 | daniel-mar | 2100 | end; |
2101 | end; |
||
2102 | end; |
||
2103 | |||
2104 | //////////////////////////////////////////////////////////////////////////////// |
||
2105 | |||
2106 | // http://www.dsdt.info/tipps/?id=176 |
||
2107 | function RecyclerEmptyRecycleBin(flags: cardinal): boolean; overload; |
||
2108 | type |
||
2109 | TSHEmptyRecycleBin = function (Wnd: HWND; |
||
2110 | pszRootPath: PChar; |
||
2111 | dwFlags: DWORD): |
||
2112 | HRESULT; stdcall; |
||
2113 | var |
||
2114 | PSHEmptyRecycleBin: TSHEmptyRecycleBin; |
||
2115 | LibHandle: THandle; |
||
2116 | const |
||
2117 | C_SHEmptyRecycleBinA = 'SHEmptyRecycleBinA'; |
||
2118 | begin |
||
2119 | result := true; |
||
2120 | LibHandle := LoadLibrary(shell32) ; |
||
2121 | try |
||
2122 | if LibHandle <> 0 then |
||
2123 | begin |
||
2124 | @PSHEmptyRecycleBin:= GetProcAddress(LibHandle, C_SHEmptyRecycleBinA); |
||
2125 | if @PSHEmptyRecycleBin <> nil then |
||
2126 | begin |
||
2127 | PSHEmptyRecycleBin(hInstance, nil, flags); |
||
2128 | end |
||
2129 | else |
||
2130 | result := false; |
||
2131 | end |
||
2132 | else |
||
2133 | result := false; |
||
2134 | finally |
||
2135 | @PSHEmptyRecycleBin := nil; |
||
2136 | FreeLibrary(LibHandle); |
||
2137 | end; |
||
2138 | end; |
||
2139 | |||
2140 | function RecyclerEmptyRecycleBin(sound, progress, confirmation: boolean): boolean; overload; |
||
2141 | const |
||
2142 | SHERB_NOCONFIRMATION = $00000001; |
||
2143 | SHERB_NOPROGRESSUI = $00000002; |
||
2144 | SHERB_NOSOUND = $00000004; |
||
2145 | var |
||
2146 | flags: cardinal; |
||
2147 | begin |
||
2148 | flags := 0; |
||
2149 | |||
2150 | if not progress then |
||
2151 | flags := flags or SHERB_NOPROGRESSUI; |
||
2152 | if not confirmation then |
||
2153 | flags := flags or SHERB_NOCONFIRMATION; |
||
2154 | if not sound then |
||
2155 | flags := flags or SHERB_NOSOUND; |
||
2156 | |||
2157 | result := RecyclerEmptyRecycleBin(flags); |
||
2158 | end; |
||
2159 | |||
2160 | //////////////////////////////////////////////////////////////////////////////// |
||
2161 | |||
2162 | // Template |
||
2163 | // http://www.dsdt.info/tipps/?id=116 |
||
2164 | function RecyclerAddFileOrFolder(FileOrFolder: string; confirmation: boolean): boolean; overload; |
||
2165 | var |
||
2166 | Operation: TSHFileOpStruct; |
||
2167 | begin |
||
2168 | with Operation do |
||
2169 | begin |
||
2170 | Wnd := hInstance; // OK? |
||
2171 | wFunc := FO_DELETE; |
||
2172 | pFrom := PChar(FileOrFolder + #0); |
||
2173 | pTo := nil; |
||
2174 | fFlags := FOF_ALLOWUNDO; |
||
2175 | if not confirmation then fFlags := fFlags or FOF_NOCONFIRMATION; |
||
2176 | end; |
||
2177 | Result := SHFileOperation(Operation) = 0; |
||
2178 | end; |
||
2179 | |||
2180 | function RecyclerAddFileOrFolder(FileOrFolder: string): boolean; overload; |
||
2181 | begin |
||
2182 | result := RecyclerAddFileOrFolder(FileOrFolder, false); |
||
2183 | end; |
||
2184 | |||
2185 | function RecyclerConfirmationDialogEnabled: boolean; |
||
17 | daniel-mar | 2186 | var |
2187 | gp: GPOLICYBOOL; |
||
2188 | begin |
||
2189 | gp := RecyclerGroupPolicyConfirmFileDelete; |
||
2190 | if gp <> gpUndefined then |
||
2191 | begin |
||
2192 | result := gp = gpEnabled; |
||
2193 | end |
||
2194 | else |
||
2195 | begin |
||
2196 | result := RecyclerShellStateConfirmationDialogEnabled; |
||
2197 | end; |
||
2198 | end; |
||
2199 | |||
2200 | function RecyclerShellStateConfirmationDialogEnabled: boolean; |
||
12 | daniel-mar | 2201 | type |
2202 | TSHGetSettings = procedure (var lpss: SHELLSTATE; dwMask: DWORD) stdcall; |
||
2203 | const |
||
2204 | C_SHGetSettings = 'SHGetSettings'; |
||
2205 | var |
||
2206 | lpss: SHELLSTATE; |
||
2207 | bNoConfirmRecycle: boolean; |
||
2208 | |||
2209 | PSHGetSettings: TSHGetSettings; |
||
2210 | RBHandle: THandle; |
||
2211 | |||
2212 | reg: TRegistry; |
||
2213 | rbuf: array[0..255] of byte; |
||
2214 | begin |
||
2215 | PSHGetSettings := nil; |
||
2216 | result := false; // Avoid warning message |
||
2217 | |||
2218 | RBHandle := LoadLibrary(shell32); |
||
2219 | if(RBHandle <> 0) then |
||
2220 | begin |
||
2221 | PSHGetSettings := GetProcAddress(RBHandle, C_SHGetSettings); |
||
2222 | if (@PSHGetSettings = nil) then |
||
2223 | begin |
||
2224 | FreeLibrary(RBHandle); |
||
2225 | RBHandle := 0; |
||
2226 | end; |
||
2227 | end; |
||
2228 | |||
2229 | if (RBHandle <> 0) and (Assigned(PSHGetSettings)) then |
||
2230 | begin |
||
2231 | ZeroMemory(@lpss, SizeOf(lpss)); |
||
2232 | PSHGetSettings(lpss, SSF_NOCONFIRMRECYCLE); |
||
2233 | // bNoConfirmRecycle := (lpss.Flags1 and 4) = 4; // fNoConfirmRecycle |
||
2234 | bNoConfirmRecycle := GetByteBit(lpss.Flags1, 2); |
||
2235 | |||
2236 | result := not bNoConfirmRecycle; |
||
2237 | end |
||
2238 | else |
||
2239 | begin |
||
2240 | reg := TRegistry.Create; |
||
2241 | try |
||
2242 | // API function call failed. Probably because Windows is too old. |
||
2243 | // Try to read out from registry. |
||
16 | daniel-mar | 2244 | // The 3rd bit of the 5th byte of "ShellState" is the value |
2245 | // of "fNoConfirmRecycle". |
||
12 | daniel-mar | 2246 | |
2247 | reg.RootKey := HKEY_CURRENT_USER; |
||
2248 | if (reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Explorer')) then |
||
2249 | begin |
||
2250 | ZeroMemory(@rbuf, SizeOf(rbuf)); |
||
2251 | reg.ReadBinaryData('ShellState', rbuf, SizeOf(rbuf)); |
||
2252 | |||
2253 | // Lese 3tes Bit vom 5ten Byte |
||
2254 | // bNoConfirmRecycle := ((rbuf[4] and 4) = 4); |
||
30 | daniel-mar | 2255 | bNoConfirmRecycle := GetByteBit(rbuf[4], 2); |
12 | daniel-mar | 2256 | result := not bNoConfirmRecycle; |
2257 | |||
2258 | reg.CloseKey; |
||
2259 | end |
||
2260 | else |
||
2261 | begin |
||
2262 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_NOT_CALLABLE, [C_SHGetSettings])]); |
||
2263 | end; |
||
2264 | finally |
||
2265 | reg.Free; |
||
2266 | end; |
||
2267 | end; |
||
2268 | |||
2269 | if (RBHandle <> 0) then FreeLibrary(RBHandle); |
||
2270 | end; |
||
2271 | |||
2272 | procedure RecyclerConfirmationDialogSetEnabled(NewSetting: boolean); |
||
2273 | type |
||
2274 | TSHGetSetSettings = procedure (var lpss: SHELLSTATE; dwMask: DWORD; bSet: BOOL) stdcall; |
||
2275 | const |
||
2276 | C_SHGetSetSettings = 'SHGetSetSettings'; |
||
2277 | var |
||
2278 | lpss: SHELLSTATE; |
||
2279 | |||
2280 | PSHGetSetSettings: TSHGetSetSettings; |
||
2281 | RBHandle: THandle; |
||
2282 | |||
2283 | reg: TRegistry; |
||
2284 | rbuf: array[0..255] of byte; |
||
2285 | |||
2286 | dwResult: DWORD; |
||
2287 | begin |
||
2288 | PSHGetSetSettings := nil; |
||
2289 | |||
2290 | RBHandle := LoadLibrary(shell32); |
||
2291 | if(RBHandle <> 0) then |
||
2292 | begin |
||
2293 | PSHGetSetSettings := GetProcAddress(RBHandle, C_SHGetSetSettings); |
||
2294 | if (@PSHGetSetSettings = nil) then |
||
2295 | begin |
||
2296 | FreeLibrary(RBHandle); |
||
2297 | RBHandle := 0; |
||
2298 | end; |
||
2299 | end; |
||
2300 | |||
2301 | if (RBHandle <> 0) and (Assigned(PSHGetSetSettings)) then |
||
2302 | begin |
||
2303 | ZeroMemory(@lpss, SizeOf(lpss)); |
||
2304 | PSHGetSetSettings(lpss, SSF_NOCONFIRMRECYCLE, false); // Get |
||
2305 | lpss.Flags1 := SetByteBit(lpss.Flags1, 2, NewSetting); |
||
2306 | PSHGetSetSettings(lpss, SSF_NOCONFIRMRECYCLE, true); // Set |
||
2307 | |||
2308 | SendMessageTimeout ( |
||
2309 | HWND_BROADCAST, WM_SETTINGCHANGE, |
||
19 | daniel-mar | 2310 | 0, lParam (pChar ('ShellState')), |
12 | daniel-mar | 2311 | SMTO_ABORTIFHUNG, 5000, dwResult |
2312 | ); |
||
2313 | end |
||
2314 | else |
||
2315 | begin |
||
2316 | reg := TRegistry.Create; |
||
2317 | try |
||
2318 | // API function call failed. Probably because Windows is too old. |
||
2319 | // Try to read out from registry. |
||
16 | daniel-mar | 2320 | // The 3rd bit of the 5th byte of "ShellState" is the value |
2321 | // of "fNoConfirmRecycle". |
||
12 | daniel-mar | 2322 | |
2323 | reg.RootKey := HKEY_CURRENT_USER; |
||
2324 | if (reg.OpenKey('Software\Microsoft\Windows\CurrentVersion\Explorer', false)) then |
||
2325 | begin |
||
2326 | ZeroMemory(@rbuf, SizeOf(rbuf)); |
||
2327 | reg.ReadBinaryData('ShellState', rbuf, SizeOf(rbuf)); // Get |
||
2328 | rbuf[4] := SetByteBit(rbuf[4], 2, NewSetting); |
||
2329 | reg.WriteBinaryData('ShellState', rbuf, SizeOf(rbuf)); // Set |
||
2330 | |||
2331 | SendMessageTimeout ( |
||
2332 | HWND_BROADCAST, WM_SETTINGCHANGE, |
||
19 | daniel-mar | 2333 | 0, lParam (pChar ('ShellState')), |
12 | daniel-mar | 2334 | SMTO_ABORTIFHUNG, 5000, dwResult |
2335 | ); |
||
2336 | |||
2337 | reg.CloseKey; |
||
2338 | end |
||
2339 | else |
||
2340 | begin |
||
2341 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_NOT_CALLABLE, [C_SHGetSetSettings])]); |
||
2342 | end; |
||
2343 | finally |
||
2344 | reg.Free; |
||
2345 | end; |
||
2346 | end; |
||
2347 | |||
2348 | if (RBHandle <> 0) then FreeLibrary(RBHandle); |
||
2349 | end; |
||
2350 | |||
2351 | function RecyclerGetCurrentIconString: string; |
||
2352 | begin |
||
2353 | if RecyclerIsEmpty then |
||
2354 | result := RecyclerGetEmptyIconString |
||
2355 | else |
||
2356 | result := RecyclerGetFullIconString; |
||
2357 | end; |
||
2358 | |||
2359 | function RecyclerGetDefaultIconString: string; |
||
2360 | var |
||
2361 | reg: TRegistry; |
||
2362 | begin |
||
2363 | // Please note: The "default" icon is not always the icon of the |
||
2364 | // current recycle bin in its current state (full, empty) |
||
2365 | // At Windows 95b, the registry value actually did change every time the |
||
2366 | // recycle bin state did change, but at Windows 2000 I could not see any |
||
2367 | // update, even after reboot. So, the registry value is possible fixed as |
||
2368 | // default = empty on newer OS versions. |
||
2369 | |||
2370 | reg := TRegistry.Create; |
||
2371 | try |
||
2372 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2373 | if reg.OpenKeyReadOnly('CLSID\'+RECYCLER_CLSID+'\DefaultIcon') then |
||
2374 | begin |
||
2375 | result := reg.ReadString(''); |
||
2376 | reg.CloseKey; |
||
2377 | end; |
||
2378 | finally |
||
2379 | reg.Free; |
||
2380 | end; |
||
2381 | end; |
||
2382 | |||
2383 | function RecyclerGetEmptyIconString: string; |
||
2384 | var |
||
2385 | reg: TRegistry; |
||
2386 | begin |
||
2387 | reg := TRegistry.Create; |
||
2388 | try |
||
2389 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2390 | if reg.OpenKeyReadOnly('CLSID\'+RECYCLER_CLSID+'\DefaultIcon') then |
||
2391 | begin |
||
2392 | result := reg.ReadString('Empty'); |
||
2393 | reg.CloseKey; |
||
2394 | end; |
||
2395 | finally |
||
2396 | reg.Free; |
||
2397 | end; |
||
2398 | end; |
||
2399 | |||
2400 | function RecyclerGetFullIconString: string; |
||
2401 | var |
||
2402 | reg: TRegistry; |
||
2403 | begin |
||
2404 | reg := TRegistry.Create; |
||
2405 | try |
||
2406 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2407 | if reg.OpenKeyReadOnly('CLSID\'+RECYCLER_CLSID+'\DefaultIcon') then |
||
2408 | begin |
||
2409 | result := reg.ReadString('Full'); |
||
2410 | reg.CloseKey; |
||
2411 | end; |
||
2412 | finally |
||
2413 | reg.Free; |
||
2414 | end; |
||
2415 | end; |
||
2416 | |||
2417 | function RecyclerGetName: string; |
||
2418 | var |
||
2419 | reg: TRegistry; |
||
2420 | begin |
||
2421 | // Windows 95b: |
||
2422 | // Change of CLSID\{645FF040-5081-101B-9F08-00AA002F954E} will change the desktop name of the recycle bin. |
||
2423 | |||
2424 | // Windows 2000: If LocalizedString is available, the 3rd argument will be parsed |
||
2425 | // (if the third argument will removed, it will be read out from the DLL resource string automatically) |
||
2426 | |||
2427 | reg := TRegistry.Create; |
||
2428 | try |
||
2429 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2430 | if reg.OpenKeyReadOnly('CLSID\'+RECYCLER_CLSID) then |
||
2431 | begin |
||
2432 | if reg.ValueExists('LocalizedString') then |
||
2433 | begin |
||
2434 | result := reg.ReadString('LocalizedString'); |
||
2435 | result := _DecodeReferenceString(result); |
||
2436 | end |
||
2437 | else |
||
2438 | begin |
||
2439 | result := reg.ReadString(''); |
||
2440 | end; |
||
2441 | |||
2442 | reg.CloseKey; |
||
2443 | end; |
||
2444 | finally |
||
2445 | reg.Free; |
||
2446 | end; |
||
2447 | end; |
||
2448 | |||
2449 | function RecyclerGetInfoTip: string; |
||
2450 | var |
||
2451 | reg: TRegistry; |
||
2452 | begin |
||
2453 | // Not available in some older versions of Windows |
||
2454 | |||
2455 | reg := TRegistry.Create; |
||
2456 | try |
||
2457 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2458 | if reg.OpenKeyReadOnly('CLSID\'+RECYCLER_CLSID) then |
||
2459 | begin |
||
2460 | result := reg.ReadString('InfoTip'); |
||
2461 | result := _DecodeReferenceString(result); |
||
2462 | |||
2463 | reg.CloseKey; |
||
2464 | end; |
||
2465 | finally |
||
2466 | reg.Free; |
||
2467 | end; |
||
2468 | end; |
||
2469 | |||
2470 | function RecyclerGetIntroText: string; |
||
2471 | var |
||
2472 | reg: TRegistry; |
||
2473 | begin |
||
2474 | // Not available in some older versions of Windows |
||
2475 | |||
2476 | reg := TRegistry.Create; |
||
2477 | try |
||
2478 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2479 | if reg.OpenKeyReadOnly('CLSID\'+RECYCLER_CLSID) then |
||
2480 | begin |
||
2481 | result := reg.ReadString('IntroText'); |
||
2482 | result := _DecodeReferenceString(result); |
||
2483 | |||
2484 | reg.CloseKey; |
||
2485 | end; |
||
2486 | finally |
||
2487 | reg.Free; |
||
2488 | end; |
||
2489 | end; |
||
2490 | |||
2491 | function RecyclerEmptyEventGetName: string; |
||
2492 | var |
||
2493 | reg: TRegistry; |
||
2494 | begin |
||
2495 | reg := TRegistry.Create; |
||
2496 | try |
||
2497 | reg.RootKey := HKEY_CURRENT_USER; |
||
2498 | if reg.OpenKeyReadOnly('AppEvents\EventLabels\EmptyRecycleBin') then |
||
2499 | begin |
||
2500 | result := reg.ReadString(''); |
||
2501 | reg.CloseKey; |
||
2502 | end; |
||
2503 | finally |
||
2504 | reg.Free; |
||
2505 | end; |
||
2506 | end; |
||
2507 | |||
2508 | function RecyclerEmptyEventGetCurrentSound: string; |
||
2509 | begin |
||
2510 | result := RecyclerEmptyEventGetSound('.Current'); |
||
2511 | end; |
||
2512 | |||
2513 | function RecyclerEmptyEventGetDefaultSound: string; |
||
2514 | begin |
||
2515 | result := RecyclerEmptyEventGetSound('.Default'); |
||
2516 | end; |
||
2517 | |||
2518 | procedure RecyclerEmptyEventGetSoundCategories(AStringList: TStringList); |
||
2519 | var |
||
2520 | reg: TRegistry; |
||
2521 | begin |
||
2522 | reg := TRegistry.Create; |
||
2523 | try |
||
2524 | reg.RootKey := HKEY_CURRENT_USER; |
||
2525 | if reg.OpenKeyReadOnly('AppEvents\Schemes\Apps\Explorer\EmptyRecycleBin') then |
||
2526 | begin |
||
2527 | reg.GetKeyNames(AStringList); |
||
2528 | reg.CloseKey; |
||
2529 | end; |
||
2530 | finally |
||
2531 | reg.Free; |
||
2532 | end; |
||
2533 | end; |
||
2534 | |||
2535 | function RecyclerEmptyEventGetSound(ACategory: string): string; |
||
2536 | var |
||
2537 | reg: TRegistry; |
||
2538 | resourcestring |
||
2539 | LNG_SND_EVENT_CAT_ERROR = 'The category "%s" is not available for the notification event "%s".'; |
||
2540 | begin |
||
2541 | // Outputs an filename or empty string for no sound defined. |
||
2542 | |||
2543 | reg := TRegistry.Create; |
||
2544 | try |
||
2545 | reg.RootKey := HKEY_CURRENT_USER; |
||
2546 | if reg.OpenKeyReadOnly('AppEvents\Schemes\Apps\Explorer\EmptyRecycleBin') then |
||
2547 | begin |
||
2548 | if reg.OpenKeyReadOnly(ACategory) then |
||
2549 | begin |
||
2550 | result := reg.ReadString(''); |
||
2551 | reg.CloseKey; |
||
2552 | end |
||
2553 | else |
||
2554 | raise EEventCategoryNotDefined.CreateFmt(LNG_SND_EVENT_CAT_ERROR, [ACategory, 'EmptyRecycleBin']); |
||
2555 | reg.CloseKey; |
||
2556 | end; |
||
2557 | finally |
||
2558 | reg.Free; |
||
2559 | end; |
||
2560 | end; |
||
2561 | |||
2562 | function RecyclerGlobalGetPercentUsage: integer; |
||
2563 | var |
||
2564 | reg: TRegistry; |
||
2565 | dump: string; |
||
2566 | const |
||
2567 | RES_DEFAULT = 10; |
||
2568 | begin |
||
2569 | result := -1; |
||
2570 | |||
2571 | reg := TRegistry.Create; |
||
2572 | try |
||
2573 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2574 | |||
2575 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
2576 | begin |
||
2577 | if reg.ValueExists('Percent') then |
||
2578 | begin |
||
2579 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
2580 | |||
2581 | result := reg.ReadInteger('Percent'); |
||
2582 | end |
||
2583 | else if reg.ValueExists('PurgeInfo') then |
||
2584 | begin |
||
2585 | // Windows 95 - Verschlüsselte Informationen liegen in PurgeInfo |
||
2586 | |||
2587 | dump := _registryReadDump(reg, 'PurgeInfo'); |
||
2588 | result := Ord(dump[63]); |
||
2589 | end |
||
2590 | else |
||
2591 | begin |
||
2592 | // Windows 95 - Standardwerte sind gegeben, deswegen existiert kein PurgeInfo |
||
2593 | |||
2594 | result := RES_DEFAULT; // Standardeinstellung bei Windows |
||
2595 | end; |
||
2596 | |||
2597 | reg.CloseKey; |
||
2598 | end; |
||
2599 | finally |
||
2600 | reg.Free; |
||
2601 | end; |
||
2602 | end; |
||
2603 | |||
2604 | function RecyclerSpecificGetPercentUsage(Drive: Char): integer; |
||
2605 | var |
||
2606 | reg: TRegistry; |
||
2607 | dump: string; |
||
2608 | const |
||
2609 | RES_DEFAULT = 10; |
||
2610 | begin |
||
2611 | result := -1; |
||
2612 | |||
2613 | reg := TRegistry.Create; |
||
2614 | try |
||
2615 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2616 | |||
2617 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
2618 | begin |
||
2619 | if reg.OpenKeyReadOnly(Drive) then |
||
2620 | begin |
||
2621 | if reg.ValueExists('Percent') then |
||
2622 | begin |
||
2623 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
2624 | |||
2625 | result := reg.ReadInteger('Percent'); |
||
2626 | end |
||
2627 | else |
||
2628 | begin |
||
2629 | result := RES_DEFAULT; |
||
2630 | end; |
||
2631 | reg.CloseKey; |
||
2632 | end |
||
2633 | else |
||
2634 | begin |
||
2635 | if reg.ValueExists('PurgeInfo') then |
||
2636 | begin |
||
2637 | // Windows 95 - Verschlüsselte Informationen liegen in PurgeInfo |
||
2638 | |||
2639 | dump := _registryReadDump(reg, 'PurgeInfo'); |
||
2640 | |||
2641 | // NOT tested, only theoretical! My idea about the possible structure is: |
||
2642 | // 0x08 = Drive A |
||
2643 | // 0x0a = Drive B |
||
2644 | // 0x0c = Drive C (validated) |
||
2645 | // 0x0e = Drive D |
||
2646 | // ... |
||
2647 | |||
2648 | result := Ord(dump[9+_DriveNum(Drive)*2]); |
||
2649 | end |
||
2650 | else |
||
2651 | begin |
||
2652 | // Windows 95 - Standardwerte sind gegeben, deswegen existiert kein PurgeInfo |
||
2653 | |||
2654 | result := RES_DEFAULT; // Standardeinstellung bei Windows |
||
2655 | end; |
||
2656 | end; |
||
2657 | |||
2658 | reg.CloseKey; |
||
2659 | end; |
||
2660 | finally |
||
2661 | reg.Free; |
||
2662 | end; |
||
2663 | end; |
||
2664 | |||
2665 | function RecyclerGetPercentUsageAutoDeterminate(Drive: Char): integer; |
||
17 | daniel-mar | 2666 | var |
2667 | gpSetting: integer; |
||
12 | daniel-mar | 2668 | begin |
17 | daniel-mar | 2669 | gpSetting := RecyclerGroupPolicyRecycleBinSize; |
2670 | if gpSetting <> -1 then |
||
2671 | result := gpSetting |
||
2672 | else if RecyclerHasGlobalSettings then |
||
12 | daniel-mar | 2673 | result := RecyclerGlobalGetPercentUsage |
2674 | else |
||
2675 | result := RecyclerSpecificGetPercentUsage(Drive); |
||
2676 | end; |
||
2677 | |||
2678 | function RecyclerGlobalIsNukeOnDelete: boolean; |
||
2679 | var |
||
2680 | reg: TRegistry; |
||
2681 | dump: string; |
||
2682 | const |
||
2683 | RES_DEFAULT = false; |
||
2684 | begin |
||
2685 | result := false; |
||
2686 | |||
2687 | reg := TRegistry.Create; |
||
2688 | try |
||
2689 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2690 | |||
2691 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
2692 | begin |
||
2693 | if reg.ValueExists('NukeOnDelete') then |
||
2694 | begin |
||
2695 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
2696 | |||
2697 | result := reg.ReadBool('NukeOnDelete'); |
||
2698 | end |
||
2699 | else if reg.ValueExists('PurgeInfo') then |
||
2700 | begin |
||
2701 | // Windows 95 - Verschlüsselte Informationen liegen in PurgeInfo |
||
2702 | |||
2703 | // See comment at RecyclerSpecificIsNukeOnDelete() |
||
2704 | |||
2705 | dump := _registryReadDump(reg, 'PurgeInfo'); |
||
30 | daniel-mar | 2706 | result := GetAnsiCharBit(dump[68], 3); |
12 | daniel-mar | 2707 | end |
2708 | else |
||
2709 | begin |
||
2710 | // Windows 95 - Standardwerte sind gegeben, deswegen existiert kein PurgeInfo |
||
2711 | |||
2712 | result := RES_DEFAULT; // Standardeinstellung bei Windows |
||
2713 | end; |
||
2714 | |||
2715 | reg.CloseKey; |
||
2716 | end; |
||
2717 | finally |
||
2718 | reg.Free; |
||
2719 | end; |
||
2720 | end; |
||
2721 | |||
2722 | function RecyclerSpecificIsNukeOnDelete(Drive: Char): boolean; |
||
2723 | var |
||
2724 | reg: TRegistry; |
||
2725 | dump: string; |
||
2726 | d: Byte; |
||
2727 | const |
||
2728 | RES_DEFAULT = false; |
||
2729 | begin |
||
2730 | result := false; |
||
2731 | |||
2732 | reg := TRegistry.Create; |
||
2733 | try |
||
2734 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2735 | |||
2736 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
2737 | begin |
||
2738 | if reg.OpenKeyReadOnly(Drive) then |
||
2739 | begin |
||
2740 | if reg.ValueExists('NukeOnDelete') then |
||
2741 | begin |
||
2742 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
2743 | |||
2744 | result := reg.ReadBool('NukeOnDelete'); |
||
2745 | end; |
||
2746 | reg.CloseKey; |
||
2747 | end |
||
2748 | else |
||
2749 | begin |
||
2750 | if reg.ValueExists('PurgeInfo') then |
||
2751 | begin |
||
2752 | // Windows 95 - Verschlüsselte Informationen liegen in PurgeInfo |
||
2753 | |||
2754 | dump := _registryReadDump(reg, 'PurgeInfo'); |
||
2755 | |||
2756 | // NOT tested, only theoretical! My idea about the possible structure is: |
||
2757 | // |
||
2758 | // Byte 0x40 0x41 0x42 0x43 |
||
2759 | // Bit 76543210 76543210 76543210 76543210 |
||
2760 | // -------- -------- -------- -------- |
||
2761 | // Meaning hgfedcba ponmlkji xwvutsrq ????G?zy |
||
2762 | // |
||
2763 | // a..z = Drives |
||
2764 | // G = global settings |
||
2765 | // |
||
2766 | // Already validated: |
||
2767 | // 0x64 = 04 (00000100) |
||
2768 | // 0x67 = 08 (00001000) |
||
2769 | |||
2770 | d := _DriveNum(Drive); |
||
30 | daniel-mar | 2771 | result := GetAnsiCharBit(dump[65+(d div 7)], d mod 7); |
12 | daniel-mar | 2772 | end |
2773 | else |
||
2774 | begin |
||
2775 | // Windows 95 - Standardwerte sind gegeben, deswegen existiert kein PurgeInfo |
||
2776 | |||
2777 | result := RES_DEFAULT; // Standardeinstellung bei Windows |
||
2778 | end; |
||
2779 | end; |
||
2780 | |||
2781 | reg.CloseKey; |
||
2782 | end; |
||
2783 | finally |
||
2784 | reg.Free; |
||
2785 | end; |
||
2786 | end; |
||
2787 | |||
2788 | function RecyclerIsNukeOnDeleteAutoDeterminate(Drive: Char): boolean; |
||
2789 | begin |
||
17 | daniel-mar | 2790 | if RecyclerGroupPolicyNoRecycleFiles = gpEnabled then |
2791 | result := true |
||
2792 | else if RecyclerHasGlobalSettings then |
||
12 | daniel-mar | 2793 | result := RecyclerGlobalIsNukeOnDelete |
2794 | else |
||
2795 | result := RecyclerSpecificIsNukeOnDelete(Drive); |
||
2796 | end; |
||
2797 | |||
2798 | function RecyclerHasGlobalSettings: boolean; |
||
2799 | var |
||
2800 | reg: TRegistry; |
||
2801 | dump: string; |
||
2802 | begin |
||
2803 | result := false; |
||
2804 | |||
2805 | reg := TRegistry.Create; |
||
2806 | try |
||
2807 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2808 | |||
2809 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
2810 | begin |
||
2811 | if reg.ValueExists('UseGlobalSettings') then |
||
2812 | begin |
||
2813 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
2814 | |||
2815 | result := reg.ReadBool('UseGlobalSettings'); |
||
2816 | end |
||
2817 | else if reg.ValueExists('PurgeInfo') then |
||
2818 | begin |
||
2819 | // Windows 95 - Verschlüsselte Informationen liegen in PurgeInfo |
||
2820 | // TODO: Gibt es ein offizielles Dokument oder ein API, indem PurgeInfo |
||
2821 | // offiziell entschlüsselbar ist? |
||
2822 | |||
2823 | dump := _registryReadDump(reg, 'PurgeInfo'); |
||
2824 | if dump[5] = #$01 then |
||
2825 | result := true |
||
2826 | else if dump[5] = #$00 then |
||
2827 | result := false |
||
2828 | else |
||
2829 | raise EUnknownState.Create(Format(LNG_UNEXPECTED_STATE, ['PurgeInfo'])); |
||
2830 | end |
||
2831 | else |
||
2832 | begin |
||
2833 | // Windows 95 - Standardwerte sind gegeben, deswegen existiert kein PurgeInfo |
||
2834 | |||
2835 | result := true; // Standardeinstellung bei Windows |
||
2836 | end; |
||
2837 | |||
2838 | reg.CloseKey; |
||
2839 | end; |
||
2840 | finally |
||
2841 | reg.Free; |
||
2842 | end; |
||
2843 | end; |
||
2844 | |||
2845 | function RecyclerIsEmpty: boolean; |
||
2846 | var |
||
2847 | Drive: Char; |
||
2848 | begin |
||
2849 | result := true; |
||
2850 | for Drive := 'A' to 'Z' do |
||
2851 | begin |
||
24 | daniel-mar | 2852 | if RecyclerIsPossible(Drive) and not RecyclerIsEmpty(Drive) then |
12 | daniel-mar | 2853 | begin |
2854 | result := false; |
||
2855 | exit; |
||
2856 | end; |
||
2857 | end; |
||
2858 | end; |
||
2859 | |||
2860 | function RecyclerIsEmpty(Drive: Char): boolean; |
||
2861 | begin |
||
2862 | result := RecyclerGetAPIInfo(Drive).i64NumItems = 0; |
||
2863 | end; |
||
2864 | |||
2865 | function RecyclerGetNumItems: int64; |
||
2866 | var |
||
2867 | Drive: Char; |
||
2868 | begin |
||
2869 | result := 0; |
||
2870 | for Drive := 'A' to 'Z' do |
||
2871 | begin |
||
24 | daniel-mar | 2872 | if RecyclerIsPossible(Drive) then |
2873 | begin |
||
2874 | result := result + RecyclerGetNumItems(Drive); |
||
2875 | end; |
||
12 | daniel-mar | 2876 | end; |
2877 | end; |
||
2878 | |||
2879 | function RecyclerGetNumItems(Drive: Char): int64; |
||
2880 | begin |
||
2881 | result := RecyclerGetAPIInfo(Drive).i64NumItems; |
||
2882 | end; |
||
2883 | |||
2884 | function RecyclerGetSize: int64; |
||
2885 | var |
||
2886 | Drive: Char; |
||
2887 | begin |
||
2888 | result := 0; |
||
2889 | for Drive := 'A' to 'Z' do |
||
2890 | begin |
||
24 | daniel-mar | 2891 | if RecyclerIsPossible(Drive) then |
2892 | begin |
||
2893 | result := result + RecyclerGetSize(Drive); |
||
2894 | end; |
||
12 | daniel-mar | 2895 | end; |
2896 | end; |
||
2897 | |||
2898 | function RecyclerGetSize(Drive: Char): int64; |
||
2899 | begin |
||
2900 | result := RecyclerGetAPIInfo(Drive).i64Size; |
||
2901 | end; |
||
2902 | |||
2903 | function RecyclerGetAPIInfo(Drive: Char): TSHQueryRBInfo; |
||
2904 | begin |
||
2905 | result := RecyclerGetAPIInfo(Drive + ':\'); |
||
2906 | end; |
||
2907 | |||
2908 | const |
||
2909 | C_SHQueryRecycleBin = 'SHQueryRecycleBinA'; |
||
2910 | |||
2911 | type |
||
2912 | TSHQueryRecycleBin = function(pszRootPath: LPCTSTR; |
||
2913 | var pSHQueryRBInfo: TSHQueryRBInfo): HRESULT; stdcall; |
||
2914 | |||
2915 | function RecyclerGetAPIInfo(Path: String): TSHQueryRBInfo; |
||
2916 | var |
||
2917 | PSHQueryRecycleBin: TSHQueryRecycleBin; |
||
2918 | RBHandle: THandle; |
||
2919 | res: HRESULT; |
||
2920 | begin |
||
2921 | PSHQueryRecycleBin := nil; |
||
2922 | |||
2923 | // Ref: http://www.delphipraxis.net/post1291.html |
||
2924 | |||
2925 | RBHandle := LoadLibrary(shell32); |
||
2926 | if(RBHandle <> 0) then |
||
2927 | begin |
||
2928 | PSHQueryRecycleBin := GetProcAddress(RBHandle, C_SHQueryRecycleBin); |
||
2929 | if(@PSHQueryRecycleBin = nil) then |
||
2930 | begin |
||
2931 | FreeLibrary(RBHandle); |
||
2932 | RBHandle := 0; |
||
2933 | end; |
||
2934 | end; |
||
2935 | |||
2936 | fillchar(result, SizeOf(TSHQueryRBInfo),0); |
||
2937 | result.cbSize := SizeOf(TSHQueryRBInfo); |
||
2938 | |||
2939 | if (RBHandle <> 0) and (Assigned(PSHQueryRecycleBin)) then |
||
2940 | begin |
||
2941 | res := PSHQueryRecycleBin(PChar(Path), result); |
||
2942 | // if Succeeded(res) then |
||
2943 | if res = S_OK then |
||
2944 | begin |
||
2945 | // Alles OK, unser result hat nun die gewünschten Daten. |
||
2946 | end |
||
2947 | else |
||
24 | daniel-mar | 2948 | begin |
2949 | // Since Windows Vista, SHQueryRecycleBin will fail with E_FAIL (80004005) |
||
2950 | // if Path is a floppy or CD drive... |
||
2951 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_ERROR_CODE, [C_SHQueryRecycleBin, Path, '0x'+IntToHex(res, 2*SizeOf(HRESULT))])]); |
||
2952 | end; |
||
12 | daniel-mar | 2953 | end |
2954 | else |
||
2955 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_NOT_CALLABLE, [C_SHQueryRecycleBin])]); |
||
2956 | |||
2957 | if (RBHandle <> 0) then FreeLibrary(RBHandle); |
||
2958 | end; |
||
2959 | |||
2960 | function RecyclerGetCLSID: string; |
||
2961 | begin |
||
2962 | result := RECYCLER_CLSID; |
||
2963 | end; |
||
2964 | |||
17 | daniel-mar | 2965 | // Windows 95 without Internet Explorer 4 has no SHQueryRecycleBinA. |
12 | daniel-mar | 2966 | function RecyclerQueryFunctionAvailable: boolean; |
2967 | var |
||
2968 | RBHandle: THandle; |
||
2969 | SHQueryRecycleBin: TSHQueryRecycleBin; |
||
2970 | begin |
||
2971 | RBHandle := LoadLibrary(shell32); |
||
2972 | if(RBHandle <> 0) then |
||
2973 | begin |
||
2974 | SHQueryRecycleBin := GetProcAddress(RBHandle, C_SHQueryRecycleBin); |
||
2975 | if(@SHQueryRecycleBin = nil) then |
||
2976 | begin |
||
2977 | FreeLibrary(RBHandle); |
||
2978 | RBHandle := 0; |
||
2979 | end; |
||
2980 | end; |
||
2981 | |||
2982 | result := RBHandle <> 0; |
||
2983 | end; |
||
2984 | |||
17 | daniel-mar | 2985 | const |
2986 | GroupPolicyAcceptHKLMTrick = true; |
||
2987 | |||
2988 | // TODO: In future also detect for other users |
||
2989 | // TODO: Also make a setter (inkl. Message to Windows Explorer?) |
||
2990 | function RecyclerGroupPolicyNoRecycleFiles: GPOLICYBOOL; |
||
2991 | var |
||
2992 | reg: TRegistry; |
||
2993 | begin |
||
2994 | result := gpUndefined; |
||
2995 | |||
2996 | reg := TRegistry.Create; |
||
2997 | try |
||
2998 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, |
||
2999 | // even if gpedit.msc shows "Not configured"! |
||
3000 | if GroupPolicyAcceptHKLMTrick then |
||
3001 | begin |
||
3002 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
3003 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
3004 | begin |
||
3005 | if reg.ValueExists('NoRecycleFiles') then |
||
3006 | begin |
||
3007 | if reg.ReadBool('NoRecycleFiles') then |
||
3008 | result := gpEnabled |
||
3009 | else |
||
3010 | result := gpDisabled; |
||
3011 | Exit; |
||
3012 | end; |
||
3013 | reg.CloseKey; |
||
3014 | end; |
||
3015 | end; |
||
3016 | |||
3017 | reg.RootKey := HKEY_CURRENT_USER; |
||
3018 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
3019 | begin |
||
3020 | if reg.ValueExists('NoRecycleFiles') then |
||
3021 | begin |
||
3022 | if reg.ReadBool('NoRecycleFiles') then |
||
3023 | result := gpEnabled |
||
3024 | else |
||
3025 | result := gpDisabled; |
||
3026 | end; |
||
3027 | reg.CloseKey; |
||
3028 | end; |
||
3029 | finally |
||
3030 | reg.Free; |
||
3031 | end; |
||
3032 | end; |
||
3033 | |||
3034 | // TODO: In future also detect for other users |
||
3035 | // TODO: Also make a setter (inkl. Message to Windows Explorer?) |
||
3036 | function RecyclerGroupPolicyConfirmFileDelete: GPOLICYBOOL; |
||
3037 | var |
||
3038 | reg: TRegistry; |
||
3039 | begin |
||
3040 | result := gpUndefined; |
||
3041 | reg := TRegistry.Create; |
||
3042 | try |
||
3043 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, |
||
3044 | // even if gpedit.msc shows "Not configured"! |
||
3045 | if GroupPolicyAcceptHKLMTrick then |
||
3046 | begin |
||
3047 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
3048 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
3049 | begin |
||
3050 | if reg.ValueExists('ConfirmFileDelete') then |
||
3051 | begin |
||
3052 | if reg.ReadBool('ConfirmFileDelete') then |
||
3053 | result := gpEnabled |
||
3054 | else |
||
3055 | result := gpDisabled; |
||
3056 | Exit; |
||
3057 | end; |
||
3058 | reg.CloseKey; |
||
3059 | end; |
||
3060 | end; |
||
3061 | |||
3062 | reg.RootKey := HKEY_CURRENT_USER; |
||
3063 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
3064 | begin |
||
3065 | if reg.ValueExists('ConfirmFileDelete') then |
||
3066 | begin |
||
3067 | if reg.ReadBool('ConfirmFileDelete') then |
||
3068 | result := gpEnabled |
||
3069 | else |
||
3070 | result := gpDisabled; |
||
3071 | end; |
||
3072 | reg.CloseKey; |
||
3073 | end; |
||
3074 | finally |
||
3075 | reg.Free; |
||
3076 | end; |
||
3077 | end; |
||
3078 | |||
3079 | |||
3080 | // TODO: In future also detect for other users |
||
3081 | // TODO: Also make a setter (inkl. Message to Windows Explorer?) |
||
3082 | function RecyclerGroupPolicyRecycleBinSize: integer; |
||
3083 | var |
||
3084 | reg: TRegistry; |
||
3085 | begin |
||
3086 | result := -1; |
||
3087 | reg := TRegistry.Create; |
||
3088 | try |
||
3089 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, |
||
3090 | // even if gpedit.msc shows "Not configured"! |
||
3091 | if GroupPolicyAcceptHKLMTrick then |
||
3092 | begin |
||
3093 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
3094 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
3095 | begin |
||
3096 | if reg.ValueExists('RecycleBinSize') then |
||
3097 | begin |
||
3098 | result := reg.ReadInteger('RecycleBinSize'); |
||
3099 | Exit; |
||
3100 | end; |
||
3101 | reg.CloseKey; |
||
3102 | end; |
||
3103 | end; |
||
3104 | |||
3105 | reg.RootKey := HKEY_CURRENT_USER; |
||
3106 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
3107 | begin |
||
3108 | if reg.ValueExists('RecycleBinSize') then |
||
18 | daniel-mar | 3109 | begin |
17 | daniel-mar | 3110 | result := reg.ReadInteger('RecycleBinSize'); |
18 | daniel-mar | 3111 | end; |
17 | daniel-mar | 3112 | reg.CloseKey; |
3113 | end; |
||
3114 | finally |
||
3115 | reg.Free; |
||
3116 | end; |
||
3117 | end; |
||
3118 | |||
3119 | function GPBoolToString(value: GPOLICYBOOL): String; |
||
3120 | begin |
||
3121 | case value of |
||
3122 | gpUndefined: result := 'Not configured'; |
||
3123 | gpEnabled: result := 'Enabled'; |
||
3124 | gpDisabled: result := 'Disabled'; |
||
3125 | end; |
||
3126 | end; |
||
3127 | |||
22 | daniel-mar | 3128 | function RecyclerIsPossible(Drive: Char): boolean; |
3129 | var |
||
3130 | typ: Integer; |
||
3131 | begin |
||
3132 | typ := GetDriveType(PChar(Drive + ':\')); |
||
3133 | result := typ = DRIVE_FIXED; |
||
3134 | end; |
||
3135 | |||
12 | daniel-mar | 3136 | function RecyclerLibraryVersion: string; |
3137 | begin |
||
74 | daniel-mar | 3138 | result := 'ViaThinkSoft Recycle Bin Unit [01 JUL 2016]'; |
12 | daniel-mar | 3139 | end; |
3140 | |||
3141 | end. |