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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 | |||
12 | daniel-mar | 791 | // http://www.delphipraxis.net/post471470.html |
792 | // Changed |
||
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); |
||
67 | daniel-mar | 802 | if err > 0 then |
803 | begin |
||
804 | EAPICallError.Create('_getAccountSid:' + SysErrorMessage(err)); |
||
805 | Exit; |
||
806 | end; |
||
12 | daniel-mar | 807 | |
67 | daniel-mar | 808 | if _ConvertSidToStringSidA(SID, strSID) then |
12 | daniel-mar | 809 | begin |
67 | daniel-mar | 810 | result := string(strSID); |
811 | Exit; |
||
812 | end; |
||
12 | daniel-mar | 813 | |
67 | daniel-mar | 814 | if _NT_SidToString(SID, result) then Exit; |
815 | |||
816 | EAPICallError.Create('_getMySID:' + SysErrorMessage(err)); |
||
12 | daniel-mar | 817 | end; |
818 | |||
819 | // Originalcode aus http://www.delphipraxis.net/post2933.html |
||
820 | function _DriveExists(DriveByte: Byte): Boolean; overload; |
||
821 | begin |
||
822 | Result := GetLogicalDrives and (1 shl DriveByte) <> 0; |
||
823 | end; |
||
824 | |||
825 | function _driveExists(Drive: Char): Boolean; overload; |
||
826 | var |
||
827 | DriveByte: Byte; |
||
828 | tmp: string; |
||
829 | begin |
||
830 | // Make drive letter upper case (for older Delphi versions) |
||
831 | tmp := UpperCase(Drive); |
||
832 | Drive := tmp[1]; |
||
833 | |||
834 | DriveByte := Ord(Drive) - Ord('A'); |
||
835 | Result := _DriveExists(DriveByte); |
||
836 | end; |
||
837 | |||
838 | function _isFAT(drive: char): boolean; |
||
839 | var |
||
840 | Dummy2: DWORD; |
||
841 | Dummy3: DWORD; |
||
842 | FileSystem: array[0..MAX_PATH] of char; |
||
843 | VolumeName: array[0..MAX_PATH] of char; |
||
844 | s: string; |
||
845 | begin |
||
846 | result := false; |
||
847 | if _driveExists(drive) then |
||
848 | begin |
||
849 | s := drive + DriveDelim + PathDelim; // ohne die Auslagerung in einen String kommt es zu einer AV in ntdll |
||
850 | GetVolumeInformation(PChar(s), VolumeName, |
||
851 | SizeOf(VolumeName), nil, Dummy2, Dummy3, FileSystem, SizeOf(FileSystem)); |
||
852 | result := uppercase(copy(FileSystem, 0, 3)) = 'FAT'; |
||
853 | end; |
||
854 | end; |
||
855 | |||
856 | // ********************************************************** |
||
25 | daniel-mar | 857 | // VISTA AND WINDOWS 7 FUNCTIONS, INTERNAL USED |
12 | daniel-mar | 858 | // ********************************************************** |
859 | |||
25 | daniel-mar | 860 | const |
861 | vista_valid_index_size = $220; // 544 |
||
862 | |||
12 | daniel-mar | 863 | function _isFileVistaRealfile(filename: string): boolean; |
864 | begin |
||
865 | result := uppercase(copy(extractfilename(filename), 0, 2)) = '$R'; |
||
866 | end; |
||
867 | |||
868 | function _isFileVistaIndexfile(filename: string): boolean; |
||
869 | begin |
||
870 | result := uppercase(copy(extractfilename(filename), 0, 2)) = '$I'; |
||
871 | end; |
||
872 | |||
873 | function _isFileVistaNamed(filename: string): boolean; |
||
874 | begin |
||
875 | result := _isFileVistaIndexfile(filename) or |
||
876 | _isFileVistaRealfile(filename); |
||
877 | end; |
||
878 | |||
879 | function _VistaChangeRealfileToIndexfile(realfile: string): string; |
||
880 | begin |
||
881 | if _isFileVistaRealfile(realfile) then |
||
882 | begin |
||
883 | result := extractfilepath(realfile)+'$I'+ |
||
884 | copy(extractfilename(realfile), 3, length(extractfilename(realfile))-2); |
||
885 | end |
||
886 | else |
||
887 | result := realfile; // ignore, even if it is not a vista recycle-file |
||
888 | end; |
||
889 | |||
890 | function _VistaChangeIndexfileToRealfile(indexfile: string): string; |
||
891 | begin |
||
892 | if _isFileVistaIndexfile(indexfile) then |
||
893 | begin |
||
894 | result := extractfilepath(indexfile)+'$R'+ |
||
895 | copy(extractfilename(indexfile), 3, length(extractfilename(indexfile))-2); |
||
896 | end |
||
897 | else |
||
898 | result := indexfile; // ignore, even if it is not a vista recycle-file |
||
899 | end; |
||
900 | |||
901 | procedure _VistaListIndexes(recyclerpath: string; result: TStringList); |
||
902 | var |
||
903 | sr: TSearchRec; |
||
904 | r: Integer; |
||
905 | tmp: string; |
||
906 | begin |
||
907 | tmp := recyclerpath; |
||
908 | tmp := IncludeTrailingBackslash(tmp); |
||
909 | |||
910 | if not directoryexists(tmp) then exit; |
||
911 | |||
912 | r := FindFirst(tmp+PathDelim + '$I*', faAnyFile, sr); |
||
913 | while r = 0 do |
||
914 | begin |
||
915 | if (sr.Name <> '.') and (sr.Name <> '..') then |
||
916 | begin |
||
25 | daniel-mar | 917 | if sr.Size = vista_valid_index_size then |
12 | daniel-mar | 918 | begin |
919 | result.Add(copy(sr.name, 3, length(sr.name)-2)); |
||
920 | end; |
||
921 | end; |
||
922 | r := FindNext(sr); |
||
923 | end; |
||
924 | |||
925 | FindClose(sr); |
||
926 | end; |
||
927 | |||
928 | function _VistaCurrentFilename(infofilename: string): string; |
||
929 | begin |
||
930 | result := extractfilename(infofilename); |
||
931 | |||
932 | if _isFileVistaRealfile(result) then |
||
933 | begin |
||
934 | exit; |
||
935 | end; |
||
936 | |||
937 | if _isFileVistaIndexfile(result) then |
||
938 | begin |
||
939 | result := _VistaChangeIndexfileToRealfile(result); |
||
940 | exit; |
||
941 | end; |
||
942 | |||
943 | result := copy(result, 3, length(result)-2); |
||
944 | result := '$R'+result; |
||
945 | end; |
||
946 | |||
947 | function _VistaGetSourceDrive(infofile: string): char; |
||
948 | var |
||
949 | fs: TFileStream; |
||
950 | tmp: string; |
||
951 | const |
||
952 | drive_vista_position = $18; |
||
953 | begin |
||
954 | result := #0; |
||
955 | |||
956 | tmp := infofile; |
||
957 | tmp := _VistaChangeRealfileToIndexfile(tmp); |
||
958 | if not fileexists(tmp) then exit; |
||
959 | |||
960 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
961 | try |
||
962 | fs.seek(drive_vista_position, soFromBeginning); |
||
963 | result := _readChar(fs); |
||
964 | finally |
||
965 | fs.free; |
||
966 | end; |
||
967 | end; |
||
968 | |||
969 | {$IFDEF DEL6UP} |
||
970 | function _VistaGetDateTime(infofile: string): TDateTime; |
||
971 | var |
||
972 | fs: TFileStream; |
||
973 | tmp: string; |
||
974 | const |
||
975 | timestamp_vista_position = $10; |
||
976 | begin |
||
977 | result := EncodeDateTime(1601, 1, 1, 0, 0, 0, 0); |
||
978 | |||
979 | tmp := infofile; |
||
980 | tmp := _VistaChangeRealfileToIndexfile(tmp); |
||
981 | if not fileexists(tmp) then exit; |
||
982 | |||
983 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
984 | try |
||
985 | fs.seek(timestamp_vista_position, soFromBeginning); |
||
986 | result := _fileTimeToDateTime(_readInt64(fs)); |
||
987 | finally |
||
988 | fs.free; |
||
989 | end; |
||
990 | end; |
||
991 | {$ENDIF} |
||
992 | |||
993 | function _VistaGetSourceUnicode(infofile: string): string; |
||
994 | var |
||
995 | fs: TFileStream; |
||
996 | tmp: string; |
||
997 | const |
||
998 | unicode_vista_position = $18; |
||
999 | begin |
||
1000 | result := ''; |
||
1001 | |||
1002 | tmp := infofile; |
||
1003 | tmp := _VistaChangeRealfileToIndexfile(tmp); |
||
1004 | if not fileexists(tmp) then exit; |
||
1005 | |||
1006 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1007 | try |
||
1008 | fs.seek(unicode_vista_position, soFromBeginning); |
||
1009 | result := _readNullTerminatedWideString(fs); |
||
1010 | finally |
||
1011 | fs.free; |
||
1012 | end; |
||
1013 | end; |
||
1014 | |||
1015 | function _VistaOriginalSize(infofile: string): integer; |
||
1016 | var |
||
1017 | fs: TFileStream; |
||
1018 | tmp: string; |
||
1019 | const |
||
1020 | size_vista_position = $8; |
||
1021 | begin |
||
1022 | result := -1; |
||
1023 | |||
1024 | tmp := infofile; |
||
1025 | tmp := _VistaChangeRealfileToIndexfile(tmp); |
||
1026 | if not fileexists(tmp) then exit; |
||
1027 | |||
1028 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1029 | try |
||
1030 | fs.seek(size_vista_position, soFromBeginning); |
||
1031 | result := _readInt32(fs); |
||
1032 | finally |
||
1033 | fs.free; |
||
1034 | end; |
||
1035 | end; |
||
1036 | |||
1037 | function _checkInfo1or2File(filename: string): boolean; |
||
1038 | var |
||
1039 | fs: TStream; |
||
1040 | record_length: integer; |
||
1041 | const |
||
1042 | length_position = $C; |
||
1043 | empty_size = 20; |
||
1044 | begin |
||
1045 | fs := TFileStream.Create(filename, fmOpenRead); |
||
1046 | try |
||
1047 | fs.seek(length_position, soFromBeginning); |
||
1048 | record_length := _readInt32(fs); |
||
1049 | |||
1050 | // Check the file length |
||
1051 | if record_length = 0 then |
||
1052 | result := false |
||
1053 | else |
||
1054 | result := (fs.size - empty_size) mod record_length = 0; |
||
1055 | finally |
||
1056 | fs.free; |
||
1057 | end; |
||
1058 | end; |
||
1059 | |||
1060 | function _VistaIsValid(infofile: string): boolean; |
||
1061 | var |
||
1062 | tmp: string; |
||
1063 | begin |
||
1064 | result := false; |
||
1065 | |||
1066 | tmp := infofile; |
||
1067 | tmp := _VistaChangeRealfileToIndexfile(tmp); |
||
1068 | if not fileexists(tmp) then exit; |
||
1069 | |||
25 | daniel-mar | 1070 | // Check the file length |
30 | daniel-mar | 1071 | result := _FileSize(tmp) = vista_valid_index_size; |
12 | daniel-mar | 1072 | end; |
1073 | |||
1074 | // ********************************************************** |
||
1075 | // PUBLIC FUNCTIONS |
||
1076 | // ********************************************************** |
||
1077 | |||
1078 | {$IFDEF DEL6UP} |
||
1079 | |||
1080 | function RecyclerGetDateTime(InfofileOrRecycleFolder: string): tdatetime; overload; |
||
1081 | begin |
||
1082 | result := RecyclerGetDateTime(InfofileOrRecycleFolder, ''); |
||
1083 | end; |
||
1084 | |||
1085 | function RecyclerGetDateTime(drive: char; fileid: string): tdatetime; overload; |
||
1086 | begin |
||
1087 | result := RecyclerGetDateTime(drive, '', fileid); |
||
1088 | end; |
||
1089 | |||
1090 | function RecyclerGetDateTime(drive: char; UserSID: string; fileid: string): tdatetime; overload; |
||
1091 | var |
||
1092 | infofile: string; |
||
1093 | begin |
||
1094 | infofile := RecyclerGetPath(drive, UserSID, true, fileid); |
||
1095 | result := RecyclerGetDateTime(infofile, fileid); |
||
1096 | end; |
||
1097 | |||
1098 | function RecyclerGetDateTime(InfofileOrRecycleFolder: string; id: string): tdatetime; overload; |
||
1099 | var |
||
1100 | fs: TFileStream; |
||
1101 | i, record_length: integer; |
||
1102 | tmp: string; |
||
1103 | const |
||
1104 | length_position = $C; |
||
1105 | unique_index_position = $118; |
||
1106 | timestamp_position = $120; |
||
1107 | begin |
||
1108 | // FILETIME does start at 01.01.1601 00:00:00 (GMT) |
||
1109 | result := EncodeDateTime(1601, 1, 1, 0, 0, 0, 0); |
||
1110 | |||
1111 | tmp := InfofileOrRecycleFolder; |
||
1112 | |||
1113 | if _isFileVistaNamed(tmp) then |
||
1114 | begin |
||
1115 | result := _VistaGetDateTime(tmp); |
||
1116 | exit; |
||
1117 | end; |
||
1118 | |||
1119 | {$IFDEF allow_all_filenames} |
||
1120 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1121 | begin |
||
1122 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1123 | tmp := extractfilepath(tmp)+'INFO2' |
||
1124 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1125 | tmp := extractfilepath(tmp)+'INFO'; |
||
1126 | end; |
||
1127 | {$ENDIF} |
||
1128 | |||
1129 | if directoryexists(tmp) then |
||
1130 | begin |
||
1131 | tmp := IncludeTrailingBackslash(tmp); |
||
1132 | |||
1133 | if fileexists(tmp+'$I'+id) then |
||
1134 | begin |
||
1135 | result := _VistaGetDateTime(tmp+'$I'+id); |
||
1136 | exit; |
||
1137 | end |
||
1138 | else if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1139 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO'; |
||
1140 | end; |
||
1141 | |||
1142 | if not fileexists(tmp) then exit; |
||
1143 | if not RecyclerIsValid(tmp) then exit; |
||
1144 | |||
1145 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1146 | try |
||
1147 | fs.seek(length_position, soFromBeginning); |
||
1148 | record_length := _readInt32(fs); |
||
1149 | |||
1150 | i := -1; |
||
1151 | repeat |
||
1152 | inc(i); |
||
1153 | if unique_index_position+i*record_length > fs.size then break; |
||
1154 | fs.seek(unique_index_position+i*record_length, soFromBeginning); |
||
1155 | if inttostr(_readInt32(fs)) = id then |
||
1156 | begin |
||
1157 | fs.seek(timestamp_position+i*record_length, soFromBeginning); |
||
1158 | result := _fileTimeToDateTime(_readInt64(fs)); |
||
1159 | break; |
||
1160 | end; |
||
1161 | until false; |
||
1162 | finally |
||
1163 | fs.free; |
||
1164 | end; |
||
1165 | end; |
||
1166 | |||
1167 | {$ENDIF} |
||
1168 | |||
1169 | //////////////////////////////////////////////////////////////////////////////// |
||
1170 | |||
1171 | function RecyclerGetSourceUnicode(InfofileOrRecycleFolder: string): WideString; overload; |
||
1172 | begin |
||
1173 | result := RecyclerGetSourceUnicode(InfofileOrRecycleFolder, ''); |
||
1174 | end; |
||
1175 | |||
1176 | function RecyclerGetSourceUnicode(drive: char; fileid: string): WideString; overload; |
||
1177 | begin |
||
1178 | result := RecyclerGetSourceUnicode(drive, '', fileid); |
||
1179 | end; |
||
1180 | |||
1181 | function RecyclerGetSourceUnicode(drive: char; UserSID: string; fileid: string): WideString; overload; |
||
1182 | var |
||
1183 | infofile: string; |
||
1184 | begin |
||
1185 | if Win32Platform = VER_PLATFORM_WIN32_NT then |
||
1186 | begin |
||
1187 | infofile := RecyclerGetPath(drive, UserSID, true, fileid); |
||
1188 | result := RecyclerGetSourceUnicode(infofile, fileid); |
||
1189 | end |
||
1190 | else |
||
1191 | begin |
||
1192 | // Windows 9x does not support unicode |
||
1193 | result := RecyclerGetSource(drive, UserSID, fileid); |
||
1194 | end; |
||
1195 | end; |
||
1196 | |||
1197 | function RecyclerGetSourceUnicode(InfofileOrRecycleFolder: string; id: string): WideString; overload; |
||
1198 | var |
||
1199 | fs: TFileStream; |
||
1200 | i, record_length: integer; |
||
1201 | tmp: string; |
||
1202 | const |
||
1203 | length_position = $C; |
||
1204 | unique_index_position = $118; |
||
1205 | unicode_source_position = $12C; |
||
1206 | begin |
||
1207 | result := ''; |
||
1208 | |||
1209 | tmp := InfofileOrRecycleFolder; |
||
1210 | |||
1211 | if _isFileVistaNamed(tmp) then |
||
1212 | begin |
||
1213 | // Vista only gives unicode names |
||
1214 | result := _VistaGetSourceUnicode(tmp); |
||
1215 | exit; |
||
1216 | end; |
||
1217 | |||
1218 | {$IFDEF allow_all_filenames} |
||
1219 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1220 | begin |
||
1221 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1222 | tmp := extractfilepath(tmp)+'INFO2' |
||
1223 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1224 | tmp := extractfilepath(tmp)+'INFO'; |
||
1225 | end; |
||
1226 | {$ENDIF} |
||
1227 | |||
1228 | if directoryexists(tmp) then |
||
1229 | begin |
||
1230 | tmp := IncludeTrailingBackslash(tmp); |
||
1231 | |||
1232 | if fileexists(tmp+'$I'+id) then |
||
1233 | begin |
||
1234 | // Vista only gives unicode names |
||
1235 | result := _VistaGetSourceUnicode(tmp+'$I'+id); |
||
1236 | exit; |
||
1237 | end |
||
1238 | else if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1239 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO'; |
||
1240 | end; |
||
1241 | |||
1242 | if not fileexists(tmp) then exit; |
||
1243 | if not RecyclerIsValid(tmp) then exit; |
||
1244 | |||
1245 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1246 | try |
||
1247 | fs.seek(length_position, soFromBeginning); |
||
1248 | record_length := _readInt32(fs); |
||
1249 | |||
1250 | if record_length <> $118 then |
||
1251 | begin |
||
1252 | // Windows NT |
||
1253 | i := -1; |
||
1254 | repeat |
||
1255 | inc(i); |
||
1256 | if unique_index_position+i*record_length > fs.size then break; |
||
1257 | fs.seek(unique_index_position+i*record_length, soFromBeginning); |
||
1258 | if inttostr(_readInt32(fs)) = id then |
||
1259 | begin |
||
1260 | fs.seek(unicode_source_position+i*record_length, soFromBeginning); |
||
1261 | result := _readNullTerminatedWideString(fs); |
||
1262 | break; |
||
1263 | end; |
||
1264 | until false; |
||
1265 | end; |
||
1266 | finally |
||
1267 | fs.free; |
||
1268 | end; |
||
1269 | |||
1270 | if record_length = $118 then |
||
1271 | begin |
||
1272 | // Windows 9x has no unicode support |
||
1273 | result := RecyclerGetSource(tmp, id); |
||
1274 | end; |
||
1275 | end; |
||
1276 | |||
1277 | //////////////////////////////////////////////////////////////////////////////// |
||
1278 | |||
1279 | function RecyclerGetSource(InfofileOrRecycleFolder: string): string; overload; |
||
1280 | begin |
||
1281 | result := RecyclerGetSource(InfofileOrRecycleFolder, ''); |
||
1282 | end; |
||
1283 | |||
1284 | function RecyclerGetSource(drive: char; fileid: string): string; overload; |
||
1285 | begin |
||
1286 | result := RecyclerGetSource(drive, '', fileid); |
||
1287 | end; |
||
1288 | |||
1289 | function RecyclerGetSource(drive: char; UserSID: string; fileid: string): string; overload; |
||
1290 | var |
||
1291 | infofile: string; |
||
1292 | begin |
||
1293 | infofile := RecyclerGetPath(drive, UserSID, true, fileid); |
||
1294 | result := RecyclerGetSource(infofile, fileid); |
||
1295 | end; |
||
1296 | |||
1297 | function RecyclerGetSource(InfofileOrRecycleFolder: string; id: string): string; overload; |
||
1298 | var |
||
1299 | fs: TFileStream; |
||
1300 | i, record_length: integer; |
||
1301 | tmp: string; |
||
1302 | alternativ: string; |
||
1303 | const |
||
1304 | length_position = $C; |
||
1305 | unique_index_position = $118; |
||
1306 | source_position = $14; |
||
1307 | begin |
||
1308 | result := ''; |
||
1309 | |||
1310 | tmp := InfofileOrRecycleFolder; |
||
1311 | |||
1312 | if _isFileVistaNamed(tmp) then |
||
1313 | begin |
||
1314 | // Vista only gives unicode names |
||
1315 | result := _VistaGetSourceUnicode(tmp); |
||
1316 | exit; |
||
1317 | end; |
||
1318 | |||
1319 | {$IFDEF allow_all_filenames} |
||
1320 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1321 | begin |
||
1322 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1323 | tmp := extractfilepath(tmp)+'INFO2' |
||
1324 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1325 | tmp := extractfilepath(tmp)+'INFO'; |
||
1326 | end; |
||
1327 | {$ENDIF} |
||
1328 | |||
1329 | if directoryexists(tmp) then |
||
1330 | begin |
||
1331 | tmp := IncludeTrailingBackslash(tmp); |
||
1332 | |||
1333 | if fileexists(tmp+'$I'+id) then |
||
1334 | begin |
||
1335 | // Vista only gives unicode names |
||
1336 | result := _VistaGetSourceUnicode(tmp+'$I'+id); |
||
1337 | exit; |
||
1338 | end |
||
1339 | else if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1340 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO'; |
||
1341 | end; |
||
1342 | |||
1343 | if not fileexists(tmp) then exit; |
||
1344 | if not RecyclerIsValid(tmp) then exit; |
||
1345 | |||
1346 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1347 | try |
||
1348 | fs.seek(length_position, soFromBeginning); |
||
1349 | record_length := _readInt32(fs); |
||
1350 | |||
1351 | i := -1; |
||
1352 | repeat |
||
1353 | inc(i); |
||
1354 | if unique_index_position+i*record_length > fs.size then break; |
||
1355 | fs.seek(unique_index_position+i*record_length, soFromBeginning); |
||
1356 | if inttostr(_readInt32(fs)) = id then |
||
1357 | begin |
||
1358 | fs.seek(source_position+i*record_length, soFromBeginning); |
||
1359 | alternativ := _readChar(fs); |
||
1360 | |||
1361 | if alternativ = #0 then |
||
1362 | begin |
||
1363 | fs.seek(source_position+i*record_length+1, soFromBeginning); |
||
1364 | result := _readNullTerminatedString(fs); |
||
1365 | end |
||
1366 | else |
||
1367 | begin |
||
1368 | fs.seek(source_position+i*record_length, soFromBeginning); |
||
1369 | result := _readNullTerminatedString(fs); |
||
1370 | end; |
||
1371 | |||
1372 | break; |
||
1373 | end; |
||
1374 | until false; |
||
1375 | finally |
||
1376 | fs.free; |
||
1377 | end; |
||
1378 | |||
1379 | // In some cases the ansi-source-name is [Null]:\...\ |
||
1380 | if alternativ = #0 then |
||
1381 | begin |
||
1382 | result := RecyclerGetSourceDrive(InfofileOrRecycleFolder, id) + result; |
||
1383 | end; |
||
1384 | end; |
||
1385 | |||
1386 | //////////////////////////////////////////////////////////////////////////////// |
||
1387 | |||
1388 | procedure RecyclerListIndexes(drive: char; result: TStringList); overload; |
||
1389 | begin |
||
1390 | RecyclerListIndexes(drive, '', result); |
||
1391 | end; |
||
1392 | |||
1393 | procedure RecyclerListIndexes(drive: char; UserSID: string; result: TStringList); overload; |
||
1394 | var |
||
1395 | infofile: string; |
||
1396 | begin |
||
1397 | infofile := RecyclerGetPath(drive, UserSID, false); |
||
1398 | RecyclerListIndexes(infofile, result); |
||
1399 | end; |
||
1400 | |||
1401 | procedure RecyclerListIndexes(InfofileOrRecycleFolder: string; result: TStringList); overload; |
||
1402 | var |
||
1403 | fs: TFileStream; |
||
1404 | i, record_length: integer; |
||
1405 | tmp: string; |
||
1406 | const |
||
1407 | length_position = $C; |
||
1408 | unique_index_position = $118; |
||
1409 | begin |
||
1410 | tmp := InfofileOrRecycleFolder; |
||
1411 | |||
1412 | if _isFileVistaNamed(tmp) then |
||
1413 | begin |
||
1414 | _VistaListIndexes(extractfilepath(tmp), result); |
||
1415 | exit; |
||
1416 | end; |
||
1417 | |||
1418 | {$IFDEF allow_all_filenames} |
||
1419 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1420 | begin |
||
1421 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1422 | tmp := extractfilepath(tmp)+'INFO2' |
||
1423 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1424 | tmp := extractfilepath(tmp)+'INFO'; |
||
1425 | end; |
||
1426 | {$ENDIF} |
||
1427 | |||
1428 | if directoryexists(tmp) then |
||
1429 | begin |
||
1430 | tmp := IncludeTrailingBackslash(tmp); |
||
1431 | |||
1432 | if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1433 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO' |
||
1434 | else |
||
1435 | begin |
||
1436 | // Last try: is it a vista-directory? |
||
1437 | _VistaListIndexes(tmp, result); |
||
1438 | exit; |
||
1439 | end; |
||
1440 | end; |
||
1441 | |||
1442 | if not fileexists(tmp) then exit; |
||
1443 | if not RecyclerIsValid(tmp) then exit; |
||
1444 | |||
1445 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1446 | try |
||
1447 | fs.seek(length_position, soFromBeginning); |
||
1448 | record_length := _readInt32(fs); |
||
1449 | |||
1450 | i := -1; |
||
1451 | repeat |
||
1452 | inc(i); |
||
1453 | if unique_index_position+i*record_length > fs.size then break; |
||
1454 | fs.seek(unique_index_position+i*record_length, soFromBeginning); |
||
1455 | |||
1456 | result.Add(inttostr(_readInt32(fs))); |
||
1457 | until false; |
||
1458 | finally |
||
1459 | fs.free; |
||
1460 | end; |
||
1461 | end; |
||
1462 | |||
1463 | //////////////////////////////////////////////////////////////////////////////// |
||
1464 | |||
1465 | function RecyclerGetSourceDrive(InfofileOrRecycleFolder: string): char; overload; |
||
1466 | begin |
||
1467 | result := RecyclerGetSourceDrive(InfofileOrRecycleFolder, ''); |
||
1468 | end; |
||
1469 | |||
1470 | function RecyclerGetSourceDrive(drive: char; fileid: string): char; overload; |
||
1471 | begin |
||
1472 | result := RecyclerGetSourceDrive(drive, '', fileid); |
||
1473 | end; |
||
1474 | |||
1475 | function RecyclerGetSourceDrive(drive: char; UserSID: string; fileid: string): char; overload; |
||
1476 | var |
||
1477 | infofile: string; |
||
1478 | begin |
||
1479 | infofile := RecyclerGetPath(drive, UserSID, true, fileid); |
||
1480 | result := RecyclerGetSourceDrive(infofile, fileid); |
||
1481 | end; |
||
1482 | |||
1483 | function RecyclerGetSourceDrive(InfofileOrRecycleFolder: string; id: string): char; overload; |
||
1484 | var |
||
1485 | fs: TFileStream; |
||
1486 | i, record_length: integer; |
||
1487 | tmp: string; |
||
1488 | const |
||
1489 | length_position = $C; |
||
1490 | unique_index_position = $118; |
||
1491 | source_drive_position = $11C; |
||
1492 | begin |
||
1493 | result := #0; |
||
1494 | |||
1495 | tmp := InfofileOrRecycleFolder; |
||
1496 | |||
1497 | if _isFileVistaNamed(tmp) then |
||
1498 | begin |
||
1499 | result := _VistaGetSourceDrive(tmp); |
||
1500 | exit; |
||
1501 | end; |
||
1502 | |||
1503 | {$IFDEF allow_all_filenames} |
||
1504 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1505 | begin |
||
1506 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1507 | tmp := extractfilepath(tmp)+'INFO2' |
||
1508 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1509 | tmp := extractfilepath(tmp)+'INFO'; |
||
1510 | end; |
||
1511 | {$ENDIF} |
||
1512 | |||
1513 | if directoryexists(tmp) then |
||
1514 | begin |
||
1515 | tmp := IncludeTrailingBackslash(tmp); |
||
1516 | |||
1517 | if fileexists(tmp+'$I'+id) then |
||
1518 | begin |
||
1519 | result := _VistaGetSourceDrive(tmp+'$I'+id); |
||
1520 | exit; |
||
1521 | end |
||
1522 | else if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1523 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO'; |
||
1524 | end; |
||
1525 | |||
1526 | if not fileexists(tmp) then exit; |
||
1527 | if not RecyclerIsValid(tmp) then exit; |
||
1528 | |||
1529 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1530 | try |
||
1531 | fs.seek(length_position, soFromBeginning); |
||
1532 | record_length := _readInt32(fs); |
||
1533 | |||
1534 | i := -1; |
||
1535 | repeat |
||
1536 | inc(i); |
||
1537 | if unique_index_position+i*record_length > fs.size then break; |
||
1538 | fs.seek(unique_index_position+i*record_length, soFromBeginning); |
||
1539 | if inttostr(_readInt32(fs)) = id then |
||
1540 | begin |
||
1541 | fs.seek(source_drive_position+i*record_length, soFromBeginning); |
||
1542 | result := chr(ord('A') + _readInt8(fs)); |
||
1543 | break; |
||
1544 | end; |
||
1545 | until false; |
||
1546 | finally |
||
1547 | fs.free; |
||
1548 | end; |
||
1549 | end; |
||
1550 | |||
1551 | //////////////////////////////////////////////////////////////////////////////// |
||
1552 | |||
1553 | function RecyclerOriginalSize(InfofileOrRecycleFolder: string): integer; overload; |
||
1554 | begin |
||
1555 | result := RecyclerOriginalSize(InfofileOrRecycleFolder, ''); |
||
1556 | end; |
||
1557 | |||
1558 | function RecyclerOriginalSize(drive: char; fileid: string): integer; overload; |
||
1559 | begin |
||
1560 | result := RecyclerOriginalSize(drive, '', fileid); |
||
1561 | end; |
||
1562 | |||
1563 | function RecyclerOriginalSize(drive: char; UserSID: string; fileid: string): integer; overload; |
||
1564 | var |
||
1565 | infofile: string; |
||
1566 | begin |
||
1567 | infofile := RecyclerGetPath(drive, UserSID, true, fileid); |
||
1568 | result := RecyclerOriginalSize(infofile, fileid); |
||
1569 | end; |
||
1570 | |||
1571 | function RecyclerOriginalSize(InfofileOrRecycleFolder: string; id: string): integer; overload; |
||
1572 | var |
||
1573 | fs: TFileStream; |
||
1574 | i, record_length: integer; |
||
1575 | tmp: string; |
||
1576 | const |
||
1577 | length_position = $C; |
||
1578 | unique_index_position = $118; |
||
1579 | original_size_position = $128; |
||
1580 | begin |
||
1581 | result := -1; |
||
1582 | |||
1583 | tmp := InfofileOrRecycleFolder; |
||
1584 | |||
1585 | if _isFileVistaNamed(tmp) then |
||
1586 | begin |
||
1587 | result := _VistaOriginalSize(tmp); |
||
1588 | exit; |
||
1589 | end; |
||
1590 | |||
1591 | {$IFDEF allow_all_filenames} |
||
1592 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1593 | begin |
||
1594 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1595 | tmp := extractfilepath(tmp)+'INFO2' |
||
1596 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1597 | tmp := extractfilepath(tmp)+'INFO'; |
||
1598 | end; |
||
1599 | {$ENDIF} |
||
1600 | |||
1601 | if directoryexists(tmp) then |
||
1602 | begin |
||
1603 | tmp := IncludeTrailingBackslash(tmp); |
||
1604 | |||
1605 | if fileexists(tmp+'$I'+id) then |
||
1606 | begin |
||
1607 | result := _VistaOriginalSize(tmp+'$I'+id); |
||
1608 | exit; |
||
1609 | end |
||
1610 | else if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1611 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO'; |
||
1612 | end; |
||
1613 | |||
1614 | if not fileexists(tmp) then exit; |
||
1615 | if not RecyclerIsValid(tmp) then exit; |
||
1616 | |||
1617 | fs := TFileStream.Create(tmp, fmOpenRead); |
||
1618 | try |
||
1619 | fs.seek(length_position, soFromBeginning); |
||
1620 | record_length := _readInt32(fs); |
||
1621 | |||
1622 | i := -1; |
||
1623 | repeat |
||
1624 | inc(i); |
||
1625 | if unique_index_position+i*record_length > fs.size then break; |
||
1626 | fs.seek(unique_index_position+i*record_length, soFromBeginning); |
||
1627 | if inttostr(_readInt32(fs)) = id then |
||
1628 | begin |
||
1629 | fs.seek(original_size_position+i*record_length, soFromBeginning); |
||
1630 | result := _readInt32(fs); |
||
1631 | break; |
||
1632 | end; |
||
1633 | until false; |
||
1634 | finally |
||
1635 | fs.free; |
||
1636 | end; |
||
1637 | end; |
||
1638 | |||
1639 | //////////////////////////////////////////////////////////////////////////////// |
||
1640 | |||
1641 | function RecyclerIsValid(drive: char): boolean; overload; |
||
1642 | begin |
||
67 | daniel-mar | 1643 | // Bei Vista und Win2003 (VM) erhalte ich bei LW A: die Meldung |
23 | daniel-mar | 1644 | // "c0000013 Kein Datenträger". Exception Abfangen geht nicht. |
1645 | // Daher erstmal überprüfen, ob Laufwerk existiert. |
||
1646 | result := false; |
||
1647 | if not RecyclerIsPossible(drive) then exit; |
||
1648 | |||
12 | daniel-mar | 1649 | result := RecyclerIsValid(drive, ''); |
1650 | end; |
||
1651 | |||
1652 | function RecyclerIsValid(drive: char; UserSID: string): boolean; overload; |
||
1653 | var |
||
1654 | infofile: string; |
||
1655 | begin |
||
23 | daniel-mar | 1656 | // Anmerkung siehe oben. |
1657 | result := false; |
||
1658 | if not RecyclerIsPossible(drive) then exit; |
||
1659 | |||
12 | daniel-mar | 1660 | infofile := RecyclerGetPath(drive, UserSID, false); |
1661 | result := RecyclerIsValid(infofile); |
||
1662 | end; |
||
1663 | |||
1664 | function RecyclerIsValid(InfofileOrRecycleFolder: string): boolean; overload; |
||
1665 | var |
||
1666 | tmp: string; |
||
1667 | x: TStringList; |
||
1668 | i: integer; |
||
1669 | eine_fehlerhaft: boolean; |
||
1670 | begin |
||
1671 | result := false; |
||
1672 | |||
1673 | tmp := InfofileOrRecycleFolder; |
||
1674 | |||
1675 | if _isFileVistaNamed(tmp) then |
||
1676 | begin |
||
1677 | result := _VistaIsValid(tmp); |
||
1678 | exit; |
||
1679 | end; |
||
1680 | |||
1681 | {$IFDEF allow_all_filenames} |
||
1682 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1683 | begin |
||
1684 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1685 | tmp := extractfilepath(tmp)+'INFO2' |
||
1686 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1687 | tmp := extractfilepath(tmp)+'INFO'; |
||
1688 | end; |
||
1689 | {$ENDIF} |
||
1690 | |||
1691 | if directoryexists(tmp) then |
||
1692 | begin |
||
1693 | tmp := IncludeTrailingBackslash(tmp); |
||
1694 | |||
1695 | if fileexists(tmp+'INFO2') then |
||
1696 | begin |
||
1697 | result := _checkInfo1or2File(tmp+'INFO2'); |
||
1698 | end; |
||
1699 | |||
1700 | if not result and fileexists(tmp+'INFO') then |
||
1701 | begin |
||
1702 | result := _checkInfo1or2File(tmp+'INFO'); |
||
1703 | end; |
||
1704 | |||
1705 | if not result then |
||
1706 | begin |
||
1707 | // Complete vista-directory declared? |
||
1708 | eine_fehlerhaft := false; |
||
1709 | x := TStringList.Create; |
||
1710 | try |
||
1711 | _VistaListIndexes(tmp, x); |
||
1712 | for i := 0 to x.Count - 1 do |
||
1713 | begin |
||
1714 | if not _VistaIsValid(tmp+'$I'+x.Strings[i]) then |
||
1715 | begin |
||
1716 | eine_fehlerhaft := true; |
||
1717 | end; |
||
1718 | end; |
||
1719 | finally |
||
1720 | x.Free; |
||
1721 | end; |
||
1722 | result := not eine_fehlerhaft; |
||
1723 | end; |
||
1724 | end; |
||
1725 | |||
1726 | if not fileexists(tmp) then exit; |
||
1727 | |||
1728 | result := _checkInfo1or2File(tmp); |
||
1729 | end; |
||
1730 | |||
1731 | //////////////////////////////////////////////////////////////////////////////// |
||
1732 | |||
1733 | function RecyclerCurrentFilename(InfofileOrRecycleFolder: string): string; overload; |
||
1734 | begin |
||
1735 | result := RecyclerCurrentFilename(InfofileOrRecycleFolder, ''); |
||
1736 | end; |
||
1737 | |||
1738 | function RecyclerCurrentFilename(drive: char; fileid: string): string; overload; |
||
1739 | begin |
||
1740 | result := RecyclerCurrentFilename(drive, '', fileid); |
||
1741 | end; |
||
1742 | |||
1743 | function RecyclerCurrentFilename(drive: char; UserSID: string; fileid: string): string; overload; |
||
1744 | var |
||
1745 | infofile: string; |
||
25 | daniel-mar | 1746 | begin |
12 | daniel-mar | 1747 | infofile := RecyclerGetPath(drive, UserSID, true, fileid); |
1748 | result := RecyclerCurrentFilename(infofile, fileid); |
||
1749 | end; |
||
1750 | |||
1751 | function RecyclerCurrentFilename(InfofileOrRecycleFolder: string; id: string): string; overload; |
||
1752 | var |
||
1753 | a, c: string; |
||
1754 | tmp: string; |
||
1755 | begin |
||
1756 | result := ''; |
||
1757 | |||
1758 | tmp := InfofileOrRecycleFolder; |
||
1759 | |||
1760 | if _isFileVistaNamed(tmp) then |
||
1761 | begin |
||
1762 | result := _VistaCurrentFilename(tmp); |
||
1763 | exit; |
||
1764 | end; |
||
1765 | |||
1766 | {$IFDEF allow_all_filenames} |
||
1767 | if not RecyclerIsValid(tmp) and fileexists(tmp) then |
||
1768 | begin |
||
1769 | if fileexists(extractfilepath(tmp)+'INFO2') then |
||
1770 | tmp := extractfilepath(tmp)+'INFO2' |
||
1771 | else if fileexists(extractfilepath(tmp)+'INFO') then |
||
1772 | tmp := extractfilepath(tmp)+'INFO'; |
||
1773 | end; |
||
1774 | {$ENDIF} |
||
1775 | |||
1776 | if directoryexists(tmp) then |
||
1777 | begin |
||
1778 | tmp := IncludeTrailingBackslash(tmp); |
||
1779 | |||
1780 | if fileexists(tmp+'$I'+id) then |
||
1781 | begin |
||
1782 | result := _VistaCurrentFilename(tmp+'$I'+id); |
||
1783 | exit; |
||
1784 | end |
||
1785 | else if fileexists(tmp+'INFO2') then tmp := tmp+'INFO2' |
||
1786 | else if fileexists(tmp+'INFO') then tmp := tmp+'INFO'; |
||
1787 | end; |
||
1788 | |||
1789 | a := RecyclerGetSourceDrive(tmp, id); |
||
1790 | c := extractfileext(RecyclerGetSourceUnicode(tmp, id)); |
||
1791 | if (a <> '') then |
||
1792 | begin |
||
1793 | result := 'D' + a + id + c; |
||
1794 | end; |
||
1795 | end; |
||
1796 | |||
1797 | //////////////////////////////////////////////////////////////////////////////// |
||
1798 | |||
1799 | function RecyclerGetPath(drive: char; UserSID: string; IncludeInfofile: boolean; fileid: string): string; overload; |
||
1800 | var |
||
1801 | sl: TStringList; |
||
1802 | begin |
||
1803 | sl := TStringList.Create; |
||
1804 | try |
||
1805 | RecyclerGetInfofiles(drive, UserSID, IncludeInfofile, fileid, sl); |
||
1806 | if sl.Count > 0 then |
||
1807 | result := ExtractFilePath(sl.Strings[0]) |
||
1808 | else |
||
1809 | result := ''; |
||
1810 | finally |
||
1811 | sl.free; |
||
1812 | end; |
||
1813 | end; |
||
1814 | |||
1815 | function RecyclerGetPath(drive: char; UserSID: string; IncludeInfofile: boolean): string; overload; |
||
1816 | var |
||
1817 | sl: TStringList; |
||
1818 | begin |
||
1819 | sl := TStringList.Create; |
||
1820 | try |
||
1821 | RecyclerGetInfofiles(drive, UserSID, IncludeInfofile, sl); |
||
1822 | if sl.Count > 0 then |
||
1823 | result := ExtractFilePath(sl.Strings[0]) |
||
1824 | else |
||
1825 | result := ''; |
||
1826 | finally |
||
1827 | sl.free; |
||
1828 | end; |
||
1829 | end; |
||
1830 | |||
1831 | function RecyclerGetPath(drive: char; IncludeInfofile: boolean): string; overload; |
||
1832 | var |
||
1833 | sl: TStringList; |
||
1834 | begin |
||
1835 | sl := TStringList.Create; |
||
1836 | try |
||
1837 | RecyclerGetInfofiles(drive, IncludeInfofile, sl); |
||
1838 | if sl.Count > 0 then |
||
1839 | result := ExtractFilePath(sl.Strings[0]) |
||
1840 | else |
||
1841 | result := ''; |
||
1842 | finally |
||
1843 | sl.free; |
||
1844 | end; |
||
1845 | end; |
||
1846 | |||
1847 | function RecyclerGetPath(drive: char; UserSID: string): string; overload; |
||
1848 | var |
||
1849 | sl: TStringList; |
||
1850 | begin |
||
1851 | sl := TStringList.Create; |
||
1852 | try |
||
1853 | RecyclerGetInfofiles(drive, UserSID, sl); |
||
1854 | if sl.Count > 0 then |
||
1855 | result := ExtractFilePath(sl.Strings[0]) |
||
1856 | else |
||
1857 | result := ''; |
||
1858 | finally |
||
1859 | sl.free; |
||
1860 | end; |
||
1861 | end; |
||
1862 | |||
1863 | function RecyclerGetPath(drive: char): string; overload; |
||
1864 | var |
||
1865 | sl: TStringList; |
||
1866 | begin |
||
1867 | sl := TStringList.Create; |
||
1868 | try |
||
1869 | RecyclerGetInfofiles(drive, sl); |
||
1870 | if sl.Count > 0 then |
||
1871 | result := ExtractFilePath(sl.Strings[0]) |
||
1872 | else |
||
1873 | result := ''; |
||
1874 | finally |
||
1875 | sl.free; |
||
1876 | end; |
||
1877 | end; |
||
1878 | |||
1879 | //////////////////////////////////////////////////////////////////////////////// |
||
1880 | |||
1881 | procedure RecyclerGetInfofiles(drive: char; UserSID: string; IncludeInfofile: boolean; fileid: string; result: TStringList); overload; |
||
1882 | var |
||
1883 | dir: string; |
||
1884 | begin |
||
27 | daniel-mar | 1885 | // Find recyclers from Windows Vista or higher |
1886 | |||
1887 | if _isFAT(drive) then |
||
1888 | begin |
||
1889 | dir := drive + DriveDelim + PathDelim + '$recycle.bin' + PathDelim; |
||
1890 | if IncludeInfofile and (fileid <> '') then |
||
12 | daniel-mar | 1891 | begin |
27 | daniel-mar | 1892 | if fileExists(dir + '$I'+fileid) then |
12 | daniel-mar | 1893 | begin |
27 | daniel-mar | 1894 | result.Add(dir + '$I'+fileid); |
1895 | end; |
||
1896 | end |
||
1897 | else |
||
1898 | begin |
||
1899 | if directoryExists(dir) then |
||
1900 | begin |
||
1901 | result.Add(dir); |
||
1902 | end; |
||
1903 | end; |
||
1904 | end |
||
1905 | else |
||
1906 | begin |
||
1907 | if UserSID <> '' then |
||
1908 | begin |
||
1909 | dir := drive + DriveDelim + PathDelim + '$recycle.bin'+PathDelim+UserSID+PathDelim; |
||
1910 | if IncludeInfofile and (fileid <> '') then |
||
1911 | begin |
||
1912 | if fileExists(dir + '$I'+fileid) then |
||
12 | daniel-mar | 1913 | begin |
27 | daniel-mar | 1914 | result.Add(dir + '$I'+fileid); |
12 | daniel-mar | 1915 | end; |
1916 | end |
||
1917 | else |
||
1918 | begin |
||
27 | daniel-mar | 1919 | if directoryExists(dir) then |
12 | daniel-mar | 1920 | begin |
27 | daniel-mar | 1921 | result.Add(dir); |
12 | daniel-mar | 1922 | end; |
1923 | end; |
||
1924 | end |
||
1925 | else |
||
1926 | begin |
||
73 | daniel-mar | 1927 | // TODO: aber vielleicht möchte man die Papierkörbe aller Benutzer (also aller SIDs) finden!!! |
27 | daniel-mar | 1928 | dir := drive + DriveDelim + PathDelim + '$recycle.bin'+PathDelim+_getMySID()+PathDelim; |
1929 | if IncludeInfofile and (fileid <> '') then |
||
12 | daniel-mar | 1930 | begin |
27 | daniel-mar | 1931 | if fileExists(dir + '$I'+fileid) then |
12 | daniel-mar | 1932 | begin |
27 | daniel-mar | 1933 | result.Add(dir + '$I'+fileid); |
12 | daniel-mar | 1934 | end; |
1935 | end |
||
1936 | else |
||
1937 | begin |
||
27 | daniel-mar | 1938 | if directoryExists(dir) then |
12 | daniel-mar | 1939 | begin |
27 | daniel-mar | 1940 | result.Add(dir); |
12 | daniel-mar | 1941 | end; |
1942 | end; |
||
1943 | end; |
||
27 | daniel-mar | 1944 | end; |
1945 | |||
1946 | // Find recyclers from Windows before Vista |
||
1947 | |||
1948 | if _isFAT(drive) then |
||
1949 | begin |
||
1950 | dir := drive + DriveDelim + PathDelim + 'Recycled' + PathDelim; |
||
1951 | if IncludeInfofile then |
||
1952 | begin |
||
1953 | // Both "recycle bins" are possible if you have multiboot (but do overwrite themselfes if you empty them) |
||
1954 | if fileExists(dir + 'INFO2') then |
||
1955 | result.Add(dir + 'INFO2'); // Windows 95 with Internet Explorer 4 Extension or higher Windows versions |
||
1956 | if fileExists(dir + 'INFO') then |
||
1957 | result.Add(dir + 'INFO'); // Windows 95 native |
||
1958 | end |
||
1959 | else |
||
1960 | begin |
||
1961 | if directoryExists(dir) then |
||
1962 | result.Add(dir); |
||
1963 | end; |
||
1964 | end |
||
12 | daniel-mar | 1965 | else |
1966 | begin |
||
27 | daniel-mar | 1967 | if UserSID <> '' then |
12 | daniel-mar | 1968 | begin |
27 | daniel-mar | 1969 | dir := drive + DriveDelim + PathDelim + 'Recycler'+PathDelim+UserSID+PathDelim; |
1970 | if IncludeInfofile then |
||
1971 | begin |
||
1972 | if fileExists(dir + 'INFO2') then |
||
1973 | result.Add(dir + 'INFO2'); |
||
67 | daniel-mar | 1974 | if fileExists(dir + 'INFO') then |
1975 | result.Add(dir + 'INFO'); // Windows NT 4 |
||
27 | daniel-mar | 1976 | end |
1977 | else |
||
1978 | begin |
||
1979 | if directoryExists(dir) then |
||
1980 | result.Add(dir); |
||
1981 | end; |
||
12 | daniel-mar | 1982 | end |
1983 | else |
||
1984 | begin |
||
27 | daniel-mar | 1985 | dir := drive + DriveDelim + PathDelim + 'Recycler'+PathDelim+_getMySID()+PathDelim; |
1986 | if IncludeInfofile then |
||
1987 | begin |
||
1988 | if fileExists(dir + 'INFO2') then |
||
1989 | result.Add(dir + 'INFO2'); |
||
67 | daniel-mar | 1990 | if fileExists(dir + 'INFO') then |
1991 | result.Add(dir + 'INFO'); // Windows NT 4 |
||
27 | daniel-mar | 1992 | end |
1993 | else |
||
1994 | begin |
||
1995 | if directoryExists(dir) then |
||
1996 | result.Add(dir); |
||
1997 | end; |
||
12 | daniel-mar | 1998 | end; |
27 | daniel-mar | 1999 | end; |
12 | daniel-mar | 2000 | end; |
2001 | |||
2002 | procedure RecyclerGetInfofiles(drive: char; UserSID: string; IncludeInfofile: boolean; result: TStringList); overload; |
||
2003 | begin |
||
2004 | RecyclerGetInfofiles(drive, UserSID, IncludeInfofile, '', result); |
||
2005 | end; |
||
2006 | |||
2007 | procedure RecyclerGetInfofiles(drive: char; IncludeInfofile: boolean; result: TStringList); overload; |
||
2008 | begin |
||
2009 | RecyclerGetInfofiles(drive, '', IncludeInfofile, '', result); |
||
2010 | end; |
||
2011 | |||
2012 | procedure RecyclerGetInfofiles(drive: char; UserSID: string; result: TStringList); overload; |
||
2013 | begin |
||
2014 | RecyclerGetInfofiles(drive, UserSID, false, '', result); |
||
2015 | end; |
||
2016 | |||
2017 | procedure RecyclerGetInfofiles(drive: char; result: TStringList); overload; |
||
2018 | begin |
||
2019 | RecyclerGetInfofiles(drive, '', false, '', result); |
||
2020 | end; |
||
2021 | |||
2022 | //////////////////////////////////////////////////////////////////////////////// |
||
2023 | |||
2024 | function RecyclerCurrentFilenameAndPath(drive: char; UserSID: string; fileid: string): string; overload; |
||
2025 | begin |
||
2026 | result := RecyclerGetPath(drive, UserSID, false, fileid) + |
||
2027 | RecyclerCurrentFilename(drive, UserSID, fileid); |
||
2028 | end; |
||
2029 | |||
2030 | function RecyclerCurrentFilenameAndPath(drive: char; fileid: string): string; overload; |
||
2031 | begin |
||
2032 | result := RecyclerCurrentFilenameAndPath(drive, '', fileid); |
||
2033 | end; |
||
2034 | |||
2035 | function RecyclerCurrentFilenameAndPath(InfofileOrRecycleFolder: string; id: string): string; overload; |
||
2036 | begin |
||
2037 | if RecyclerIsValid(InfofileOrRecycleFolder) then |
||
2038 | begin |
||
2039 | result := extractfilepath(InfofileOrRecycleFolder) + |
||
2040 | RecyclerCurrentFilename(InfofileOrRecycleFolder, id); |
||
2041 | end |
||
2042 | else |
||
2043 | result := ''; |
||
2044 | end; |
||
2045 | |||
2046 | //////////////////////////////////////////////////////////////////////////////// |
||
2047 | |||
2048 | function RecyclerRemoveItem(drive: char; UserSID: string; fileid: string): boolean; overload; |
||
2049 | var |
||
2050 | tmp: string; |
||
2051 | begin |
||
2052 | tmp := RecyclerCurrentFilenameAndPath(drive, UserSID, fileid); |
||
2053 | if fileexists(tmp) then |
||
2054 | begin |
||
2055 | deletefile(tmp); |
||
2056 | result := fileexists(tmp); |
||
2057 | end |
||
2058 | else |
||
2059 | begin |
||
2060 | directoryexists(tmp); |
||
2061 | result := directoryexists(tmp); |
||
2062 | end; |
||
2063 | end; |
||
2064 | |||
2065 | function RecyclerRemoveItem(drive: char; fileid: string): boolean; overload; |
||
2066 | begin |
||
2067 | result := RecyclerRemoveItem(drive, '', fileid); |
||
2068 | end; |
||
2069 | |||
2070 | function RecyclerRemoveItem(InfofileOrRecycleFolder: string; id: string): boolean; overload; |
||
2071 | var |
||
2072 | tmp: string; |
||
2073 | begin |
||
2074 | tmp := RecyclerCurrentFilenameAndPath(InfofileOrRecycleFolder, id); |
||
2075 | if fileexists(tmp) then |
||
2076 | begin |
||
2077 | deletefile(tmp); |
||
2078 | result := fileexists(tmp); |
||
2079 | end |
||
2080 | else |
||
2081 | begin |
||
73 | daniel-mar | 2082 | _DeleteDirectory(tmp); |
12 | daniel-mar | 2083 | result := directoryexists(tmp); |
2084 | end; |
||
2085 | end; |
||
2086 | |||
2087 | procedure RecyclerGetAllRecyclerDrives(result: TStringList); |
||
2088 | var |
||
25 | daniel-mar | 2089 | Drive: char; |
12 | daniel-mar | 2090 | begin |
25 | daniel-mar | 2091 | for Drive := 'A' to 'Z' do |
12 | daniel-mar | 2092 | begin |
25 | daniel-mar | 2093 | if RecyclerIsPossible(Drive) and RecyclerIsValid(Drive) then |
12 | daniel-mar | 2094 | begin |
25 | daniel-mar | 2095 | result.Add(Drive); |
12 | daniel-mar | 2096 | end; |
2097 | end; |
||
2098 | end; |
||
2099 | |||
2100 | //////////////////////////////////////////////////////////////////////////////// |
||
2101 | |||
2102 | // http://www.dsdt.info/tipps/?id=176 |
||
2103 | function RecyclerEmptyRecycleBin(flags: cardinal): boolean; overload; |
||
2104 | type |
||
2105 | TSHEmptyRecycleBin = function (Wnd: HWND; |
||
2106 | pszRootPath: PChar; |
||
2107 | dwFlags: DWORD): |
||
2108 | HRESULT; stdcall; |
||
2109 | var |
||
2110 | PSHEmptyRecycleBin: TSHEmptyRecycleBin; |
||
2111 | LibHandle: THandle; |
||
2112 | const |
||
2113 | C_SHEmptyRecycleBinA = 'SHEmptyRecycleBinA'; |
||
2114 | begin |
||
2115 | result := true; |
||
2116 | LibHandle := LoadLibrary(shell32) ; |
||
2117 | try |
||
2118 | if LibHandle <> 0 then |
||
2119 | begin |
||
2120 | @PSHEmptyRecycleBin:= GetProcAddress(LibHandle, C_SHEmptyRecycleBinA); |
||
2121 | if @PSHEmptyRecycleBin <> nil then |
||
2122 | begin |
||
2123 | PSHEmptyRecycleBin(hInstance, nil, flags); |
||
2124 | end |
||
2125 | else |
||
2126 | result := false; |
||
2127 | end |
||
2128 | else |
||
2129 | result := false; |
||
2130 | finally |
||
2131 | @PSHEmptyRecycleBin := nil; |
||
2132 | FreeLibrary(LibHandle); |
||
2133 | end; |
||
2134 | end; |
||
2135 | |||
2136 | function RecyclerEmptyRecycleBin(sound, progress, confirmation: boolean): boolean; overload; |
||
2137 | const |
||
2138 | SHERB_NOCONFIRMATION = $00000001; |
||
2139 | SHERB_NOPROGRESSUI = $00000002; |
||
2140 | SHERB_NOSOUND = $00000004; |
||
2141 | var |
||
2142 | flags: cardinal; |
||
2143 | begin |
||
2144 | flags := 0; |
||
2145 | |||
2146 | if not progress then |
||
2147 | flags := flags or SHERB_NOPROGRESSUI; |
||
2148 | if not confirmation then |
||
2149 | flags := flags or SHERB_NOCONFIRMATION; |
||
2150 | if not sound then |
||
2151 | flags := flags or SHERB_NOSOUND; |
||
2152 | |||
2153 | result := RecyclerEmptyRecycleBin(flags); |
||
2154 | end; |
||
2155 | |||
2156 | //////////////////////////////////////////////////////////////////////////////// |
||
2157 | |||
2158 | // Template |
||
2159 | // http://www.dsdt.info/tipps/?id=116 |
||
2160 | function RecyclerAddFileOrFolder(FileOrFolder: string; confirmation: boolean): boolean; overload; |
||
2161 | var |
||
2162 | Operation: TSHFileOpStruct; |
||
2163 | begin |
||
2164 | with Operation do |
||
2165 | begin |
||
2166 | Wnd := hInstance; // OK? |
||
2167 | wFunc := FO_DELETE; |
||
2168 | pFrom := PChar(FileOrFolder + #0); |
||
2169 | pTo := nil; |
||
2170 | fFlags := FOF_ALLOWUNDO; |
||
2171 | if not confirmation then fFlags := fFlags or FOF_NOCONFIRMATION; |
||
2172 | end; |
||
2173 | Result := SHFileOperation(Operation) = 0; |
||
2174 | end; |
||
2175 | |||
2176 | function RecyclerAddFileOrFolder(FileOrFolder: string): boolean; overload; |
||
2177 | begin |
||
2178 | result := RecyclerAddFileOrFolder(FileOrFolder, false); |
||
2179 | end; |
||
2180 | |||
2181 | function RecyclerConfirmationDialogEnabled: boolean; |
||
17 | daniel-mar | 2182 | var |
2183 | gp: GPOLICYBOOL; |
||
2184 | begin |
||
2185 | gp := RecyclerGroupPolicyConfirmFileDelete; |
||
2186 | if gp <> gpUndefined then |
||
2187 | begin |
||
2188 | result := gp = gpEnabled; |
||
2189 | end |
||
2190 | else |
||
2191 | begin |
||
2192 | result := RecyclerShellStateConfirmationDialogEnabled; |
||
2193 | end; |
||
2194 | end; |
||
2195 | |||
2196 | function RecyclerShellStateConfirmationDialogEnabled: boolean; |
||
12 | daniel-mar | 2197 | type |
2198 | TSHGetSettings = procedure (var lpss: SHELLSTATE; dwMask: DWORD) stdcall; |
||
2199 | const |
||
2200 | C_SHGetSettings = 'SHGetSettings'; |
||
2201 | var |
||
2202 | lpss: SHELLSTATE; |
||
2203 | bNoConfirmRecycle: boolean; |
||
2204 | |||
2205 | PSHGetSettings: TSHGetSettings; |
||
2206 | RBHandle: THandle; |
||
2207 | |||
2208 | reg: TRegistry; |
||
2209 | rbuf: array[0..255] of byte; |
||
2210 | begin |
||
2211 | PSHGetSettings := nil; |
||
2212 | result := false; // Avoid warning message |
||
2213 | |||
2214 | RBHandle := LoadLibrary(shell32); |
||
2215 | if(RBHandle <> 0) then |
||
2216 | begin |
||
2217 | PSHGetSettings := GetProcAddress(RBHandle, C_SHGetSettings); |
||
2218 | if (@PSHGetSettings = nil) then |
||
2219 | begin |
||
2220 | FreeLibrary(RBHandle); |
||
2221 | RBHandle := 0; |
||
2222 | end; |
||
2223 | end; |
||
2224 | |||
2225 | if (RBHandle <> 0) and (Assigned(PSHGetSettings)) then |
||
2226 | begin |
||
2227 | ZeroMemory(@lpss, SizeOf(lpss)); |
||
2228 | PSHGetSettings(lpss, SSF_NOCONFIRMRECYCLE); |
||
2229 | // bNoConfirmRecycle := (lpss.Flags1 and 4) = 4; // fNoConfirmRecycle |
||
2230 | bNoConfirmRecycle := GetByteBit(lpss.Flags1, 2); |
||
2231 | |||
2232 | result := not bNoConfirmRecycle; |
||
2233 | end |
||
2234 | else |
||
2235 | begin |
||
2236 | reg := TRegistry.Create; |
||
2237 | try |
||
2238 | // API function call failed. Probably because Windows is too old. |
||
2239 | // Try to read out from registry. |
||
16 | daniel-mar | 2240 | // The 3rd bit of the 5th byte of "ShellState" is the value |
2241 | // of "fNoConfirmRecycle". |
||
12 | daniel-mar | 2242 | |
2243 | reg.RootKey := HKEY_CURRENT_USER; |
||
2244 | if (reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Explorer')) then |
||
2245 | begin |
||
2246 | ZeroMemory(@rbuf, SizeOf(rbuf)); |
||
2247 | reg.ReadBinaryData('ShellState', rbuf, SizeOf(rbuf)); |
||
2248 | |||
2249 | // Lese 3tes Bit vom 5ten Byte |
||
2250 | // bNoConfirmRecycle := ((rbuf[4] and 4) = 4); |
||
30 | daniel-mar | 2251 | bNoConfirmRecycle := GetByteBit(rbuf[4], 2); |
12 | daniel-mar | 2252 | result := not bNoConfirmRecycle; |
2253 | |||
2254 | reg.CloseKey; |
||
2255 | end |
||
2256 | else |
||
2257 | begin |
||
2258 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_NOT_CALLABLE, [C_SHGetSettings])]); |
||
2259 | end; |
||
2260 | finally |
||
2261 | reg.Free; |
||
2262 | end; |
||
2263 | end; |
||
2264 | |||
2265 | if (RBHandle <> 0) then FreeLibrary(RBHandle); |
||
2266 | end; |
||
2267 | |||
2268 | procedure RecyclerConfirmationDialogSetEnabled(NewSetting: boolean); |
||
2269 | type |
||
2270 | TSHGetSetSettings = procedure (var lpss: SHELLSTATE; dwMask: DWORD; bSet: BOOL) stdcall; |
||
2271 | const |
||
2272 | C_SHGetSetSettings = 'SHGetSetSettings'; |
||
2273 | var |
||
2274 | lpss: SHELLSTATE; |
||
2275 | |||
2276 | PSHGetSetSettings: TSHGetSetSettings; |
||
2277 | RBHandle: THandle; |
||
2278 | |||
2279 | reg: TRegistry; |
||
2280 | rbuf: array[0..255] of byte; |
||
2281 | |||
2282 | dwResult: DWORD; |
||
2283 | begin |
||
2284 | PSHGetSetSettings := nil; |
||
2285 | |||
2286 | RBHandle := LoadLibrary(shell32); |
||
2287 | if(RBHandle <> 0) then |
||
2288 | begin |
||
2289 | PSHGetSetSettings := GetProcAddress(RBHandle, C_SHGetSetSettings); |
||
2290 | if (@PSHGetSetSettings = nil) then |
||
2291 | begin |
||
2292 | FreeLibrary(RBHandle); |
||
2293 | RBHandle := 0; |
||
2294 | end; |
||
2295 | end; |
||
2296 | |||
2297 | if (RBHandle <> 0) and (Assigned(PSHGetSetSettings)) then |
||
2298 | begin |
||
2299 | ZeroMemory(@lpss, SizeOf(lpss)); |
||
2300 | PSHGetSetSettings(lpss, SSF_NOCONFIRMRECYCLE, false); // Get |
||
2301 | lpss.Flags1 := SetByteBit(lpss.Flags1, 2, NewSetting); |
||
2302 | PSHGetSetSettings(lpss, SSF_NOCONFIRMRECYCLE, true); // Set |
||
2303 | |||
2304 | SendMessageTimeout ( |
||
2305 | HWND_BROADCAST, WM_SETTINGCHANGE, |
||
19 | daniel-mar | 2306 | 0, lParam (pChar ('ShellState')), |
12 | daniel-mar | 2307 | SMTO_ABORTIFHUNG, 5000, dwResult |
2308 | ); |
||
2309 | end |
||
2310 | else |
||
2311 | begin |
||
2312 | reg := TRegistry.Create; |
||
2313 | try |
||
2314 | // API function call failed. Probably because Windows is too old. |
||
2315 | // Try to read out from registry. |
||
16 | daniel-mar | 2316 | // The 3rd bit of the 5th byte of "ShellState" is the value |
2317 | // of "fNoConfirmRecycle". |
||
12 | daniel-mar | 2318 | |
2319 | reg.RootKey := HKEY_CURRENT_USER; |
||
2320 | if (reg.OpenKey('Software\Microsoft\Windows\CurrentVersion\Explorer', false)) then |
||
2321 | begin |
||
2322 | ZeroMemory(@rbuf, SizeOf(rbuf)); |
||
2323 | reg.ReadBinaryData('ShellState', rbuf, SizeOf(rbuf)); // Get |
||
2324 | rbuf[4] := SetByteBit(rbuf[4], 2, NewSetting); |
||
2325 | reg.WriteBinaryData('ShellState', rbuf, SizeOf(rbuf)); // Set |
||
2326 | |||
2327 | SendMessageTimeout ( |
||
2328 | HWND_BROADCAST, WM_SETTINGCHANGE, |
||
19 | daniel-mar | 2329 | 0, lParam (pChar ('ShellState')), |
12 | daniel-mar | 2330 | SMTO_ABORTIFHUNG, 5000, dwResult |
2331 | ); |
||
2332 | |||
2333 | reg.CloseKey; |
||
2334 | end |
||
2335 | else |
||
2336 | begin |
||
2337 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_NOT_CALLABLE, [C_SHGetSetSettings])]); |
||
2338 | end; |
||
2339 | finally |
||
2340 | reg.Free; |
||
2341 | end; |
||
2342 | end; |
||
2343 | |||
2344 | if (RBHandle <> 0) then FreeLibrary(RBHandle); |
||
2345 | end; |
||
2346 | |||
2347 | function RecyclerGetCurrentIconString: string; |
||
2348 | begin |
||
2349 | if RecyclerIsEmpty then |
||
2350 | result := RecyclerGetEmptyIconString |
||
2351 | else |
||
2352 | result := RecyclerGetFullIconString; |
||
2353 | end; |
||
2354 | |||
2355 | function RecyclerGetDefaultIconString: string; |
||
2356 | var |
||
2357 | reg: TRegistry; |
||
2358 | begin |
||
2359 | // Please note: The "default" icon is not always the icon of the |
||
2360 | // current recycle bin in its current state (full, empty) |
||
2361 | // At Windows 95b, the registry value actually did change every time the |
||
2362 | // recycle bin state did change, but at Windows 2000 I could not see any |
||
2363 | // update, even after reboot. So, the registry value is possible fixed as |
||
2364 | // default = empty on newer OS versions. |
||
2365 | |||
2366 | reg := TRegistry.Create; |
||
2367 | try |
||
2368 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2369 | if reg.OpenKeyReadOnly('CLSID\'+RECYCLER_CLSID+'\DefaultIcon') then |
||
2370 | begin |
||
2371 | result := reg.ReadString(''); |
||
2372 | reg.CloseKey; |
||
2373 | end; |
||
2374 | finally |
||
2375 | reg.Free; |
||
2376 | end; |
||
2377 | end; |
||
2378 | |||
2379 | function RecyclerGetEmptyIconString: string; |
||
2380 | var |
||
2381 | reg: TRegistry; |
||
2382 | begin |
||
2383 | reg := TRegistry.Create; |
||
2384 | try |
||
2385 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2386 | if reg.OpenKeyReadOnly('CLSID\'+RECYCLER_CLSID+'\DefaultIcon') then |
||
2387 | begin |
||
2388 | result := reg.ReadString('Empty'); |
||
2389 | reg.CloseKey; |
||
2390 | end; |
||
2391 | finally |
||
2392 | reg.Free; |
||
2393 | end; |
||
2394 | end; |
||
2395 | |||
2396 | function RecyclerGetFullIconString: string; |
||
2397 | var |
||
2398 | reg: TRegistry; |
||
2399 | begin |
||
2400 | reg := TRegistry.Create; |
||
2401 | try |
||
2402 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2403 | if reg.OpenKeyReadOnly('CLSID\'+RECYCLER_CLSID+'\DefaultIcon') then |
||
2404 | begin |
||
2405 | result := reg.ReadString('Full'); |
||
2406 | reg.CloseKey; |
||
2407 | end; |
||
2408 | finally |
||
2409 | reg.Free; |
||
2410 | end; |
||
2411 | end; |
||
2412 | |||
2413 | function RecyclerGetName: string; |
||
2414 | var |
||
2415 | reg: TRegistry; |
||
2416 | begin |
||
2417 | // Windows 95b: |
||
2418 | // Change of CLSID\{645FF040-5081-101B-9F08-00AA002F954E} will change the desktop name of the recycle bin. |
||
2419 | |||
2420 | // Windows 2000: If LocalizedString is available, the 3rd argument will be parsed |
||
2421 | // (if the third argument will removed, it will be read out from the DLL resource string automatically) |
||
2422 | |||
2423 | reg := TRegistry.Create; |
||
2424 | try |
||
2425 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2426 | if reg.OpenKeyReadOnly('CLSID\'+RECYCLER_CLSID) then |
||
2427 | begin |
||
2428 | if reg.ValueExists('LocalizedString') then |
||
2429 | begin |
||
2430 | result := reg.ReadString('LocalizedString'); |
||
2431 | result := _DecodeReferenceString(result); |
||
2432 | end |
||
2433 | else |
||
2434 | begin |
||
2435 | result := reg.ReadString(''); |
||
2436 | end; |
||
2437 | |||
2438 | reg.CloseKey; |
||
2439 | end; |
||
2440 | finally |
||
2441 | reg.Free; |
||
2442 | end; |
||
2443 | end; |
||
2444 | |||
2445 | function RecyclerGetInfoTip: string; |
||
2446 | var |
||
2447 | reg: TRegistry; |
||
2448 | begin |
||
2449 | // Not available in some older versions of Windows |
||
2450 | |||
2451 | reg := TRegistry.Create; |
||
2452 | try |
||
2453 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2454 | if reg.OpenKeyReadOnly('CLSID\'+RECYCLER_CLSID) then |
||
2455 | begin |
||
2456 | result := reg.ReadString('InfoTip'); |
||
2457 | result := _DecodeReferenceString(result); |
||
2458 | |||
2459 | reg.CloseKey; |
||
2460 | end; |
||
2461 | finally |
||
2462 | reg.Free; |
||
2463 | end; |
||
2464 | end; |
||
2465 | |||
2466 | function RecyclerGetIntroText: string; |
||
2467 | var |
||
2468 | reg: TRegistry; |
||
2469 | begin |
||
2470 | // Not available in some older versions of Windows |
||
2471 | |||
2472 | reg := TRegistry.Create; |
||
2473 | try |
||
2474 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2475 | if reg.OpenKeyReadOnly('CLSID\'+RECYCLER_CLSID) then |
||
2476 | begin |
||
2477 | result := reg.ReadString('IntroText'); |
||
2478 | result := _DecodeReferenceString(result); |
||
2479 | |||
2480 | reg.CloseKey; |
||
2481 | end; |
||
2482 | finally |
||
2483 | reg.Free; |
||
2484 | end; |
||
2485 | end; |
||
2486 | |||
2487 | function RecyclerEmptyEventGetName: string; |
||
2488 | var |
||
2489 | reg: TRegistry; |
||
2490 | begin |
||
2491 | reg := TRegistry.Create; |
||
2492 | try |
||
2493 | reg.RootKey := HKEY_CURRENT_USER; |
||
2494 | if reg.OpenKeyReadOnly('AppEvents\EventLabels\EmptyRecycleBin') then |
||
2495 | begin |
||
2496 | result := reg.ReadString(''); |
||
2497 | reg.CloseKey; |
||
2498 | end; |
||
2499 | finally |
||
2500 | reg.Free; |
||
2501 | end; |
||
2502 | end; |
||
2503 | |||
2504 | function RecyclerEmptyEventGetCurrentSound: string; |
||
2505 | begin |
||
2506 | result := RecyclerEmptyEventGetSound('.Current'); |
||
2507 | end; |
||
2508 | |||
2509 | function RecyclerEmptyEventGetDefaultSound: string; |
||
2510 | begin |
||
2511 | result := RecyclerEmptyEventGetSound('.Default'); |
||
2512 | end; |
||
2513 | |||
2514 | procedure RecyclerEmptyEventGetSoundCategories(AStringList: TStringList); |
||
2515 | var |
||
2516 | reg: TRegistry; |
||
2517 | begin |
||
2518 | reg := TRegistry.Create; |
||
2519 | try |
||
2520 | reg.RootKey := HKEY_CURRENT_USER; |
||
2521 | if reg.OpenKeyReadOnly('AppEvents\Schemes\Apps\Explorer\EmptyRecycleBin') then |
||
2522 | begin |
||
2523 | reg.GetKeyNames(AStringList); |
||
2524 | reg.CloseKey; |
||
2525 | end; |
||
2526 | finally |
||
2527 | reg.Free; |
||
2528 | end; |
||
2529 | end; |
||
2530 | |||
2531 | function RecyclerEmptyEventGetSound(ACategory: string): string; |
||
2532 | var |
||
2533 | reg: TRegistry; |
||
2534 | resourcestring |
||
2535 | LNG_SND_EVENT_CAT_ERROR = 'The category "%s" is not available for the notification event "%s".'; |
||
2536 | begin |
||
2537 | // Outputs an filename or empty string for no sound defined. |
||
2538 | |||
2539 | reg := TRegistry.Create; |
||
2540 | try |
||
2541 | reg.RootKey := HKEY_CURRENT_USER; |
||
2542 | if reg.OpenKeyReadOnly('AppEvents\Schemes\Apps\Explorer\EmptyRecycleBin') then |
||
2543 | begin |
||
2544 | if reg.OpenKeyReadOnly(ACategory) then |
||
2545 | begin |
||
2546 | result := reg.ReadString(''); |
||
2547 | reg.CloseKey; |
||
2548 | end |
||
2549 | else |
||
2550 | raise EEventCategoryNotDefined.CreateFmt(LNG_SND_EVENT_CAT_ERROR, [ACategory, 'EmptyRecycleBin']); |
||
2551 | reg.CloseKey; |
||
2552 | end; |
||
2553 | finally |
||
2554 | reg.Free; |
||
2555 | end; |
||
2556 | end; |
||
2557 | |||
2558 | function RecyclerGlobalGetPercentUsage: integer; |
||
2559 | var |
||
2560 | reg: TRegistry; |
||
2561 | dump: string; |
||
2562 | const |
||
2563 | RES_DEFAULT = 10; |
||
2564 | begin |
||
2565 | result := -1; |
||
2566 | |||
2567 | reg := TRegistry.Create; |
||
2568 | try |
||
2569 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2570 | |||
2571 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
2572 | begin |
||
2573 | if reg.ValueExists('Percent') then |
||
2574 | begin |
||
2575 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
2576 | |||
2577 | result := reg.ReadInteger('Percent'); |
||
2578 | end |
||
2579 | else if reg.ValueExists('PurgeInfo') then |
||
2580 | begin |
||
2581 | // Windows 95 - Verschlüsselte Informationen liegen in PurgeInfo |
||
2582 | |||
2583 | dump := _registryReadDump(reg, 'PurgeInfo'); |
||
2584 | result := Ord(dump[63]); |
||
2585 | end |
||
2586 | else |
||
2587 | begin |
||
2588 | // Windows 95 - Standardwerte sind gegeben, deswegen existiert kein PurgeInfo |
||
2589 | |||
2590 | result := RES_DEFAULT; // Standardeinstellung bei Windows |
||
2591 | end; |
||
2592 | |||
2593 | reg.CloseKey; |
||
2594 | end; |
||
2595 | finally |
||
2596 | reg.Free; |
||
2597 | end; |
||
2598 | end; |
||
2599 | |||
2600 | function RecyclerSpecificGetPercentUsage(Drive: Char): integer; |
||
2601 | var |
||
2602 | reg: TRegistry; |
||
2603 | dump: string; |
||
2604 | const |
||
2605 | RES_DEFAULT = 10; |
||
2606 | begin |
||
2607 | result := -1; |
||
2608 | |||
2609 | reg := TRegistry.Create; |
||
2610 | try |
||
2611 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2612 | |||
2613 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
2614 | begin |
||
2615 | if reg.OpenKeyReadOnly(Drive) then |
||
2616 | begin |
||
2617 | if reg.ValueExists('Percent') then |
||
2618 | begin |
||
2619 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
2620 | |||
2621 | result := reg.ReadInteger('Percent'); |
||
2622 | end |
||
2623 | else |
||
2624 | begin |
||
2625 | result := RES_DEFAULT; |
||
2626 | end; |
||
2627 | reg.CloseKey; |
||
2628 | end |
||
2629 | else |
||
2630 | begin |
||
2631 | if reg.ValueExists('PurgeInfo') then |
||
2632 | begin |
||
2633 | // Windows 95 - Verschlüsselte Informationen liegen in PurgeInfo |
||
2634 | |||
2635 | dump := _registryReadDump(reg, 'PurgeInfo'); |
||
2636 | |||
2637 | // NOT tested, only theoretical! My idea about the possible structure is: |
||
2638 | // 0x08 = Drive A |
||
2639 | // 0x0a = Drive B |
||
2640 | // 0x0c = Drive C (validated) |
||
2641 | // 0x0e = Drive D |
||
2642 | // ... |
||
2643 | |||
2644 | result := Ord(dump[9+_DriveNum(Drive)*2]); |
||
2645 | end |
||
2646 | else |
||
2647 | begin |
||
2648 | // Windows 95 - Standardwerte sind gegeben, deswegen existiert kein PurgeInfo |
||
2649 | |||
2650 | result := RES_DEFAULT; // Standardeinstellung bei Windows |
||
2651 | end; |
||
2652 | end; |
||
2653 | |||
2654 | reg.CloseKey; |
||
2655 | end; |
||
2656 | finally |
||
2657 | reg.Free; |
||
2658 | end; |
||
2659 | end; |
||
2660 | |||
2661 | function RecyclerGetPercentUsageAutoDeterminate(Drive: Char): integer; |
||
17 | daniel-mar | 2662 | var |
2663 | gpSetting: integer; |
||
12 | daniel-mar | 2664 | begin |
17 | daniel-mar | 2665 | gpSetting := RecyclerGroupPolicyRecycleBinSize; |
2666 | if gpSetting <> -1 then |
||
2667 | result := gpSetting |
||
2668 | else if RecyclerHasGlobalSettings then |
||
12 | daniel-mar | 2669 | result := RecyclerGlobalGetPercentUsage |
2670 | else |
||
2671 | result := RecyclerSpecificGetPercentUsage(Drive); |
||
2672 | end; |
||
2673 | |||
2674 | function RecyclerGlobalIsNukeOnDelete: boolean; |
||
2675 | var |
||
2676 | reg: TRegistry; |
||
2677 | dump: string; |
||
2678 | const |
||
2679 | RES_DEFAULT = false; |
||
2680 | begin |
||
2681 | result := false; |
||
2682 | |||
2683 | reg := TRegistry.Create; |
||
2684 | try |
||
2685 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2686 | |||
2687 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
2688 | begin |
||
2689 | if reg.ValueExists('NukeOnDelete') then |
||
2690 | begin |
||
2691 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
2692 | |||
2693 | result := reg.ReadBool('NukeOnDelete'); |
||
2694 | end |
||
2695 | else if reg.ValueExists('PurgeInfo') then |
||
2696 | begin |
||
2697 | // Windows 95 - Verschlüsselte Informationen liegen in PurgeInfo |
||
2698 | |||
2699 | // See comment at RecyclerSpecificIsNukeOnDelete() |
||
2700 | |||
2701 | dump := _registryReadDump(reg, 'PurgeInfo'); |
||
30 | daniel-mar | 2702 | result := GetAnsiCharBit(dump[68], 3); |
12 | daniel-mar | 2703 | end |
2704 | else |
||
2705 | begin |
||
2706 | // Windows 95 - Standardwerte sind gegeben, deswegen existiert kein PurgeInfo |
||
2707 | |||
2708 | result := RES_DEFAULT; // Standardeinstellung bei Windows |
||
2709 | end; |
||
2710 | |||
2711 | reg.CloseKey; |
||
2712 | end; |
||
2713 | finally |
||
2714 | reg.Free; |
||
2715 | end; |
||
2716 | end; |
||
2717 | |||
2718 | function RecyclerSpecificIsNukeOnDelete(Drive: Char): boolean; |
||
2719 | var |
||
2720 | reg: TRegistry; |
||
2721 | dump: string; |
||
2722 | d: Byte; |
||
2723 | const |
||
2724 | RES_DEFAULT = false; |
||
2725 | begin |
||
2726 | result := false; |
||
2727 | |||
2728 | reg := TRegistry.Create; |
||
2729 | try |
||
2730 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2731 | |||
2732 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
2733 | begin |
||
2734 | if reg.OpenKeyReadOnly(Drive) then |
||
2735 | begin |
||
2736 | if reg.ValueExists('NukeOnDelete') then |
||
2737 | begin |
||
2738 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
2739 | |||
2740 | result := reg.ReadBool('NukeOnDelete'); |
||
2741 | end; |
||
2742 | reg.CloseKey; |
||
2743 | end |
||
2744 | else |
||
2745 | begin |
||
2746 | if reg.ValueExists('PurgeInfo') then |
||
2747 | begin |
||
2748 | // Windows 95 - Verschlüsselte Informationen liegen in PurgeInfo |
||
2749 | |||
2750 | dump := _registryReadDump(reg, 'PurgeInfo'); |
||
2751 | |||
2752 | // NOT tested, only theoretical! My idea about the possible structure is: |
||
2753 | // |
||
2754 | // Byte 0x40 0x41 0x42 0x43 |
||
2755 | // Bit 76543210 76543210 76543210 76543210 |
||
2756 | // -------- -------- -------- -------- |
||
2757 | // Meaning hgfedcba ponmlkji xwvutsrq ????G?zy |
||
2758 | // |
||
2759 | // a..z = Drives |
||
2760 | // G = global settings |
||
2761 | // |
||
2762 | // Already validated: |
||
2763 | // 0x64 = 04 (00000100) |
||
2764 | // 0x67 = 08 (00001000) |
||
2765 | |||
2766 | d := _DriveNum(Drive); |
||
30 | daniel-mar | 2767 | result := GetAnsiCharBit(dump[65+(d div 7)], d mod 7); |
12 | daniel-mar | 2768 | end |
2769 | else |
||
2770 | begin |
||
2771 | // Windows 95 - Standardwerte sind gegeben, deswegen existiert kein PurgeInfo |
||
2772 | |||
2773 | result := RES_DEFAULT; // Standardeinstellung bei Windows |
||
2774 | end; |
||
2775 | end; |
||
2776 | |||
2777 | reg.CloseKey; |
||
2778 | end; |
||
2779 | finally |
||
2780 | reg.Free; |
||
2781 | end; |
||
2782 | end; |
||
2783 | |||
2784 | function RecyclerIsNukeOnDeleteAutoDeterminate(Drive: Char): boolean; |
||
2785 | begin |
||
17 | daniel-mar | 2786 | if RecyclerGroupPolicyNoRecycleFiles = gpEnabled then |
2787 | result := true |
||
2788 | else if RecyclerHasGlobalSettings then |
||
12 | daniel-mar | 2789 | result := RecyclerGlobalIsNukeOnDelete |
2790 | else |
||
2791 | result := RecyclerSpecificIsNukeOnDelete(Drive); |
||
2792 | end; |
||
2793 | |||
2794 | function RecyclerHasGlobalSettings: boolean; |
||
2795 | var |
||
2796 | reg: TRegistry; |
||
2797 | dump: string; |
||
2798 | begin |
||
2799 | result := false; |
||
2800 | |||
2801 | reg := TRegistry.Create; |
||
2802 | try |
||
2803 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2804 | |||
2805 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
2806 | begin |
||
2807 | if reg.ValueExists('UseGlobalSettings') then |
||
2808 | begin |
||
2809 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
2810 | |||
2811 | result := reg.ReadBool('UseGlobalSettings'); |
||
2812 | end |
||
2813 | else if reg.ValueExists('PurgeInfo') then |
||
2814 | begin |
||
2815 | // Windows 95 - Verschlüsselte Informationen liegen in PurgeInfo |
||
2816 | // TODO: Gibt es ein offizielles Dokument oder ein API, indem PurgeInfo |
||
2817 | // offiziell entschlüsselbar ist? |
||
2818 | |||
2819 | dump := _registryReadDump(reg, 'PurgeInfo'); |
||
2820 | if dump[5] = #$01 then |
||
2821 | result := true |
||
2822 | else if dump[5] = #$00 then |
||
2823 | result := false |
||
2824 | else |
||
2825 | raise EUnknownState.Create(Format(LNG_UNEXPECTED_STATE, ['PurgeInfo'])); |
||
2826 | end |
||
2827 | else |
||
2828 | begin |
||
2829 | // Windows 95 - Standardwerte sind gegeben, deswegen existiert kein PurgeInfo |
||
2830 | |||
2831 | result := true; // Standardeinstellung bei Windows |
||
2832 | end; |
||
2833 | |||
2834 | reg.CloseKey; |
||
2835 | end; |
||
2836 | finally |
||
2837 | reg.Free; |
||
2838 | end; |
||
2839 | end; |
||
2840 | |||
2841 | function RecyclerIsEmpty: boolean; |
||
2842 | var |
||
2843 | Drive: Char; |
||
2844 | begin |
||
2845 | result := true; |
||
2846 | for Drive := 'A' to 'Z' do |
||
2847 | begin |
||
24 | daniel-mar | 2848 | if RecyclerIsPossible(Drive) and not RecyclerIsEmpty(Drive) then |
12 | daniel-mar | 2849 | begin |
2850 | result := false; |
||
2851 | exit; |
||
2852 | end; |
||
2853 | end; |
||
2854 | end; |
||
2855 | |||
2856 | function RecyclerIsEmpty(Drive: Char): boolean; |
||
2857 | begin |
||
2858 | result := RecyclerGetAPIInfo(Drive).i64NumItems = 0; |
||
2859 | end; |
||
2860 | |||
2861 | function RecyclerGetNumItems: int64; |
||
2862 | var |
||
2863 | Drive: Char; |
||
2864 | begin |
||
2865 | result := 0; |
||
2866 | for Drive := 'A' to 'Z' do |
||
2867 | begin |
||
24 | daniel-mar | 2868 | if RecyclerIsPossible(Drive) then |
2869 | begin |
||
2870 | result := result + RecyclerGetNumItems(Drive); |
||
2871 | end; |
||
12 | daniel-mar | 2872 | end; |
2873 | end; |
||
2874 | |||
2875 | function RecyclerGetNumItems(Drive: Char): int64; |
||
2876 | begin |
||
2877 | result := RecyclerGetAPIInfo(Drive).i64NumItems; |
||
2878 | end; |
||
2879 | |||
2880 | function RecyclerGetSize: int64; |
||
2881 | var |
||
2882 | Drive: Char; |
||
2883 | begin |
||
2884 | result := 0; |
||
2885 | for Drive := 'A' to 'Z' do |
||
2886 | begin |
||
24 | daniel-mar | 2887 | if RecyclerIsPossible(Drive) then |
2888 | begin |
||
2889 | result := result + RecyclerGetSize(Drive); |
||
2890 | end; |
||
12 | daniel-mar | 2891 | end; |
2892 | end; |
||
2893 | |||
2894 | function RecyclerGetSize(Drive: Char): int64; |
||
2895 | begin |
||
2896 | result := RecyclerGetAPIInfo(Drive).i64Size; |
||
2897 | end; |
||
2898 | |||
2899 | function RecyclerGetAPIInfo(Drive: Char): TSHQueryRBInfo; |
||
2900 | begin |
||
2901 | result := RecyclerGetAPIInfo(Drive + ':\'); |
||
2902 | end; |
||
2903 | |||
2904 | const |
||
2905 | C_SHQueryRecycleBin = 'SHQueryRecycleBinA'; |
||
2906 | |||
2907 | type |
||
2908 | TSHQueryRecycleBin = function(pszRootPath: LPCTSTR; |
||
2909 | var pSHQueryRBInfo: TSHQueryRBInfo): HRESULT; stdcall; |
||
2910 | |||
2911 | function RecyclerGetAPIInfo(Path: String): TSHQueryRBInfo; |
||
2912 | var |
||
2913 | PSHQueryRecycleBin: TSHQueryRecycleBin; |
||
2914 | RBHandle: THandle; |
||
2915 | res: HRESULT; |
||
2916 | begin |
||
2917 | PSHQueryRecycleBin := nil; |
||
2918 | |||
2919 | // Ref: http://www.delphipraxis.net/post1291.html |
||
2920 | |||
2921 | RBHandle := LoadLibrary(shell32); |
||
2922 | if(RBHandle <> 0) then |
||
2923 | begin |
||
2924 | PSHQueryRecycleBin := GetProcAddress(RBHandle, C_SHQueryRecycleBin); |
||
2925 | if(@PSHQueryRecycleBin = nil) then |
||
2926 | begin |
||
2927 | FreeLibrary(RBHandle); |
||
2928 | RBHandle := 0; |
||
2929 | end; |
||
2930 | end; |
||
2931 | |||
2932 | fillchar(result, SizeOf(TSHQueryRBInfo),0); |
||
2933 | result.cbSize := SizeOf(TSHQueryRBInfo); |
||
2934 | |||
2935 | if (RBHandle <> 0) and (Assigned(PSHQueryRecycleBin)) then |
||
2936 | begin |
||
2937 | res := PSHQueryRecycleBin(PChar(Path), result); |
||
2938 | // if Succeeded(res) then |
||
2939 | if res = S_OK then |
||
2940 | begin |
||
2941 | // Alles OK, unser result hat nun die gewünschten Daten. |
||
2942 | end |
||
2943 | else |
||
24 | daniel-mar | 2944 | begin |
2945 | // Since Windows Vista, SHQueryRecycleBin will fail with E_FAIL (80004005) |
||
2946 | // if Path is a floppy or CD drive... |
||
2947 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_ERROR_CODE, [C_SHQueryRecycleBin, Path, '0x'+IntToHex(res, 2*SizeOf(HRESULT))])]); |
||
2948 | end; |
||
12 | daniel-mar | 2949 | end |
2950 | else |
||
2951 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_NOT_CALLABLE, [C_SHQueryRecycleBin])]); |
||
2952 | |||
2953 | if (RBHandle <> 0) then FreeLibrary(RBHandle); |
||
2954 | end; |
||
2955 | |||
2956 | function RecyclerGetCLSID: string; |
||
2957 | begin |
||
2958 | result := RECYCLER_CLSID; |
||
2959 | end; |
||
2960 | |||
17 | daniel-mar | 2961 | // Windows 95 without Internet Explorer 4 has no SHQueryRecycleBinA. |
12 | daniel-mar | 2962 | function RecyclerQueryFunctionAvailable: boolean; |
2963 | var |
||
2964 | RBHandle: THandle; |
||
2965 | SHQueryRecycleBin: TSHQueryRecycleBin; |
||
2966 | begin |
||
2967 | RBHandle := LoadLibrary(shell32); |
||
2968 | if(RBHandle <> 0) then |
||
2969 | begin |
||
2970 | SHQueryRecycleBin := GetProcAddress(RBHandle, C_SHQueryRecycleBin); |
||
2971 | if(@SHQueryRecycleBin = nil) then |
||
2972 | begin |
||
2973 | FreeLibrary(RBHandle); |
||
2974 | RBHandle := 0; |
||
2975 | end; |
||
2976 | end; |
||
2977 | |||
2978 | result := RBHandle <> 0; |
||
2979 | end; |
||
2980 | |||
17 | daniel-mar | 2981 | const |
2982 | GroupPolicyAcceptHKLMTrick = true; |
||
2983 | |||
2984 | // TODO: In future also detect for other users |
||
2985 | // TODO: Also make a setter (inkl. Message to Windows Explorer?) |
||
2986 | function RecyclerGroupPolicyNoRecycleFiles: GPOLICYBOOL; |
||
2987 | var |
||
2988 | reg: TRegistry; |
||
2989 | begin |
||
2990 | result := gpUndefined; |
||
2991 | |||
2992 | reg := TRegistry.Create; |
||
2993 | try |
||
2994 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, |
||
2995 | // even if gpedit.msc shows "Not configured"! |
||
2996 | if GroupPolicyAcceptHKLMTrick then |
||
2997 | begin |
||
2998 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2999 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
3000 | begin |
||
3001 | if reg.ValueExists('NoRecycleFiles') then |
||
3002 | begin |
||
3003 | if reg.ReadBool('NoRecycleFiles') then |
||
3004 | result := gpEnabled |
||
3005 | else |
||
3006 | result := gpDisabled; |
||
3007 | Exit; |
||
3008 | end; |
||
3009 | reg.CloseKey; |
||
3010 | end; |
||
3011 | end; |
||
3012 | |||
3013 | reg.RootKey := HKEY_CURRENT_USER; |
||
3014 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
3015 | begin |
||
3016 | if reg.ValueExists('NoRecycleFiles') then |
||
3017 | begin |
||
3018 | if reg.ReadBool('NoRecycleFiles') then |
||
3019 | result := gpEnabled |
||
3020 | else |
||
3021 | result := gpDisabled; |
||
3022 | end; |
||
3023 | reg.CloseKey; |
||
3024 | end; |
||
3025 | finally |
||
3026 | reg.Free; |
||
3027 | end; |
||
3028 | end; |
||
3029 | |||
3030 | // TODO: In future also detect for other users |
||
3031 | // TODO: Also make a setter (inkl. Message to Windows Explorer?) |
||
3032 | function RecyclerGroupPolicyConfirmFileDelete: GPOLICYBOOL; |
||
3033 | var |
||
3034 | reg: TRegistry; |
||
3035 | begin |
||
3036 | result := gpUndefined; |
||
3037 | reg := TRegistry.Create; |
||
3038 | try |
||
3039 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, |
||
3040 | // even if gpedit.msc shows "Not configured"! |
||
3041 | if GroupPolicyAcceptHKLMTrick then |
||
3042 | begin |
||
3043 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
3044 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
3045 | begin |
||
3046 | if reg.ValueExists('ConfirmFileDelete') then |
||
3047 | begin |
||
3048 | if reg.ReadBool('ConfirmFileDelete') then |
||
3049 | result := gpEnabled |
||
3050 | else |
||
3051 | result := gpDisabled; |
||
3052 | Exit; |
||
3053 | end; |
||
3054 | reg.CloseKey; |
||
3055 | end; |
||
3056 | end; |
||
3057 | |||
3058 | reg.RootKey := HKEY_CURRENT_USER; |
||
3059 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
3060 | begin |
||
3061 | if reg.ValueExists('ConfirmFileDelete') then |
||
3062 | begin |
||
3063 | if reg.ReadBool('ConfirmFileDelete') then |
||
3064 | result := gpEnabled |
||
3065 | else |
||
3066 | result := gpDisabled; |
||
3067 | end; |
||
3068 | reg.CloseKey; |
||
3069 | end; |
||
3070 | finally |
||
3071 | reg.Free; |
||
3072 | end; |
||
3073 | end; |
||
3074 | |||
3075 | |||
3076 | // TODO: In future also detect for other users |
||
3077 | // TODO: Also make a setter (inkl. Message to Windows Explorer?) |
||
3078 | function RecyclerGroupPolicyRecycleBinSize: integer; |
||
3079 | var |
||
3080 | reg: TRegistry; |
||
3081 | begin |
||
3082 | result := -1; |
||
3083 | reg := TRegistry.Create; |
||
3084 | try |
||
3085 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, |
||
3086 | // even if gpedit.msc shows "Not configured"! |
||
3087 | if GroupPolicyAcceptHKLMTrick then |
||
3088 | begin |
||
3089 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
3090 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
3091 | begin |
||
3092 | if reg.ValueExists('RecycleBinSize') then |
||
3093 | begin |
||
3094 | result := reg.ReadInteger('RecycleBinSize'); |
||
3095 | Exit; |
||
3096 | end; |
||
3097 | reg.CloseKey; |
||
3098 | end; |
||
3099 | end; |
||
3100 | |||
3101 | reg.RootKey := HKEY_CURRENT_USER; |
||
3102 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
3103 | begin |
||
3104 | if reg.ValueExists('RecycleBinSize') then |
||
18 | daniel-mar | 3105 | begin |
17 | daniel-mar | 3106 | result := reg.ReadInteger('RecycleBinSize'); |
18 | daniel-mar | 3107 | end; |
17 | daniel-mar | 3108 | reg.CloseKey; |
3109 | end; |
||
3110 | finally |
||
3111 | reg.Free; |
||
3112 | end; |
||
3113 | end; |
||
3114 | |||
3115 | function GPBoolToString(value: GPOLICYBOOL): String; |
||
3116 | begin |
||
3117 | case value of |
||
3118 | gpUndefined: result := 'Not configured'; |
||
3119 | gpEnabled: result := 'Enabled'; |
||
3120 | gpDisabled: result := 'Disabled'; |
||
3121 | end; |
||
3122 | end; |
||
3123 | |||
22 | daniel-mar | 3124 | function RecyclerIsPossible(Drive: Char): boolean; |
3125 | var |
||
3126 | typ: Integer; |
||
3127 | begin |
||
3128 | typ := GetDriveType(PChar(Drive + ':\')); |
||
3129 | result := typ = DRIVE_FIXED; |
||
3130 | end; |
||
3131 | |||
12 | daniel-mar | 3132 | function RecyclerLibraryVersion: string; |
3133 | begin |
||
74 | daniel-mar | 3134 | result := 'ViaThinkSoft Recycle Bin Unit [01 JUL 2016]'; |
12 | daniel-mar | 3135 | end; |
3136 | |||
3137 | end. |