Rev 90 | Rev 95 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
75 | daniel-mar | 1 | unit RecBinUnit2 platform; |
2 | |||
3 | //////////////////////////////////////////////////////////////////////////////////// |
||
76 | daniel-mar | 4 | // RECYCLE-BIN-UNIT V2 BY DANIEL MARSCHALL, VIATHINKSOFT // |
75 | daniel-mar | 5 | // E-MAIL: info@daniel-marschall.de // |
76 | daniel-mar | 6 | // Web: www.daniel-marschall.de & www.viathinksoft.de // |
75 | daniel-mar | 7 | //////////////////////////////////////////////////////////////////////////////////// |
82 | daniel-mar | 8 | // Revision: 30 JUN 2022 // |
75 | daniel-mar | 9 | // This unit is freeware, but please link to my website if you are using it! // |
10 | //////////////////////////////////////////////////////////////////////////////////// |
||
11 | // Successfully tested with: // |
||
12 | // Windows 95b (without IE4 Shell Extensions) // |
||
13 | // Windows 95b (with IE4 Shell Extensions) // |
||
76 | daniel-mar | 14 | // Windows 98 SE // |
75 | daniel-mar | 15 | // Windows NT4 SP6 // |
76 | daniel-mar | 16 | // Windows XP SP3 // |
17 | // Windows 2000 SP4 // |
||
75 | daniel-mar | 18 | // Windows 2003 Server EE SP1 // |
19 | // Windows Vista // |
||
20 | // Windows 7 // |
||
82 | daniel-mar | 21 | // Windows 10 (version 1 and version 2 format) // |
22 | // Windows 11 // |
||
75 | daniel-mar | 23 | //////////////////////////////////////////////////////////////////////////////////// |
24 | |||
25 | // Delphi 7 Compatibility: (TODO: compiler switches) |
||
26 | // - Remove "static" |
||
27 | // - Remove "strict" |
||
28 | // - Remove "$REGION" |
||
29 | |||
30 | // TODO: ReadBuffer überall try-except |
||
31 | // TODO: Always check EOF before reading anything? |
||
76 | daniel-mar | 32 | // TODO: Don't crash when timestamp is invalid. Do something else instead. |
75 | daniel-mar | 33 | // TODO: Is it possible to identify a Vista-file that is not named $Ixxxxxx.ext? |
34 | // TODO: RecyclerGetInfofiles() check additionally for removable device? |
||
35 | // RecyclerIsValid() is false. |
||
36 | // TODO: Make it possible to empty the recycle bin of one specific drive! |
||
37 | // TODO: Unknown! Do you know the answer? |
||
38 | // - How does Windows 9x/NT manage the daylight saving time (if it does)? |
||
39 | // - How does Windows Vista+ react to a RECYCLER\ folder on a NTFS device? |
||
40 | // - How does Windows Vista+ react to a RECYCLED\ folder on a FAT device? ==> Win7: is ignored! |
||
41 | // - How does Windows XP react to RECYCLED\ folder on a FAT device? |
||
42 | // TODO: Translate all comments from German to English |
||
78 | daniel-mar | 43 | // TODO: Do we need this (maybe not all drives have A: till Z:?) http://stackoverflow.com/questions/17110543/how-to-retrieve-the-disk-signature-of-all-the-disks-in-windows-using-delphi-7 |
44 | // TODO: Add a lot of setters for system config stuff |
||
75 | daniel-mar | 45 | |
46 | // If enabled, the deletion timestamps will not be converted by the WinAPI. |
||
47 | {.$DEFINE FILETIME_DELPHI_CODE} |
||
48 | |||
49 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, even if gpedit.msc shows "Not configured"! |
||
50 | {$DEFINE GroupPolicyAcceptHKLMTrick} |
||
51 | |||
52 | interface |
||
53 | |||
54 | uses |
||
78 | daniel-mar | 55 | Windows, SysUtils, Classes, ContNrs, ShellAPI, Registry, Messages, Math; |
75 | daniel-mar | 56 | |
57 | const |
||
82 | daniel-mar | 58 | RECBINUNIT_VERSION = '2022-06-30'; |
75 | daniel-mar | 59 | |
60 | RECYCLER_CLSID: TGUID = '{645FF040-5081-101B-9F08-00AA002F954E}'; |
||
78 | daniel-mar | 61 | NULL_GUID: TGUID = '{00000000-0000-0000-0000-000000000000}'; |
75 | daniel-mar | 62 | |
63 | type |
||
64 | EAPICallError = class(Exception); |
||
65 | EEventCategoryNotDefined = class(Exception); |
||
66 | EInvalidDrive = class(Exception); |
||
67 | |||
68 | PSHQueryRBInfo = ^TSHQueryRBInfo; |
||
93 | daniel-mar | 69 | {$IFDEF WIN64} |
70 | // ATTENTION! MUST NOT BE PACKED! Alignment for 64 bit must be 8 and for 32 bit must be 4 |
||
71 | TSHQueryRBInfo = record |
||
72 | {$ELSE} |
||
75 | daniel-mar | 73 | TSHQueryRBInfo = packed record |
93 | daniel-mar | 74 | {$ENDIF} |
76 | daniel-mar | 75 | cbSize : DWORD; |
75 | daniel-mar | 76 | i64Size : int64; |
77 | i64NumItems : int64; |
||
78 | end; |
||
79 | |||
80 | TRbRecycleBinItem = class(TObject) |
||
81 | strict private |
||
82 | function GetSource: string; |
||
83 | strict protected |
||
84 | FSourceAnsi: AnsiString; |
||
85 | FSourceUnicode: WideString; |
||
86 | FID: string; |
||
87 | FSourceDrive: Char; |
||
88 | FDeletionTime: TDateTime; |
||
89 | FOriginalSize: int64; |
||
90 | FIndexFile: string; |
||
91 | FRemovedEntry: boolean; |
||
92 | procedure ReadFromStream(stream: TStream); virtual; abstract; |
||
93 | function GetPhysicalFile: string; virtual; abstract; // protected, because it will be read by "property" |
||
94 | public |
||
95 | property PhysicalFile: string read GetPhysicalFile; |
||
96 | property SourceAnsi: AnsiString read FSourceAnsi; |
||
97 | property SourceUnicode: WideString read FSourceUnicode; |
||
86 | daniel-mar | 98 | property Source: string read GetSource; // will bei either ANSI or Unicode, depending on the Delphi version |
75 | daniel-mar | 99 | property ID: string read FID; |
100 | property SourceDrive: Char read FSourceDrive; |
||
101 | property DeletionTime: TDateTime read FDeletionTime; |
||
102 | property OriginalSize: int64 read FOriginalSize; |
||
103 | property IndexFile: string read FIndexFile; |
||
104 | property RemovedEntry: boolean read FRemovedEntry; // the file is NOT in the recycle bin anymore! |
||
105 | |||
88 | daniel-mar | 106 | // Attention: There are no official API calls. The delete and recover |
75 | daniel-mar | 107 | // functions might fail and/or damage the shell cache. Handle with care! |
108 | function DeleteFile: boolean; virtual; abstract; |
||
109 | function RecoverFile: boolean; virtual; abstract; |
||
110 | function OpenFile: boolean; virtual; abstract; |
||
111 | end; |
||
112 | |||
76 | daniel-mar | 113 | TRbInfoAItem = class(TRbRecycleBinItem) |
75 | daniel-mar | 114 | strict protected |
115 | procedure ReadFromStream(stream: TStream); override; |
||
116 | function GetPhysicalFile: string; override; |
||
117 | public |
||
118 | constructor Create(fs: TStream; AIndexFile: string); |
||
119 | function DeleteFile: boolean; override; |
||
120 | // TODO: function RecoverFile: boolean; override; |
||
121 | // TODO: function OpenFile: boolean; override; |
||
122 | end; |
||
123 | |||
76 | daniel-mar | 124 | TRbInfoWItem = class(TRbRecycleBinItem) |
75 | daniel-mar | 125 | strict protected |
126 | procedure ReadFromStream(stream: TStream); override; |
||
127 | function GetPhysicalFile: string; override; |
||
128 | public |
||
129 | constructor Create(fs: TStream; AIndexFile: string); |
||
130 | function DeleteFile: boolean; override; |
||
131 | // TODO: function RecoverFile: boolean; override; |
||
132 | // TODO: function OpenFile: boolean; override; |
||
133 | end; |
||
134 | |||
135 | TRbVistaItem = class(TRbRecycleBinItem) |
||
136 | strict protected |
||
137 | procedure ReadFromStream(stream: TStream); override; |
||
138 | function GetPhysicalFile: string; override; |
||
139 | public |
||
140 | constructor Create(fs: TStream; AIndexFile, AID: string); |
||
141 | function DeleteFile: boolean; override; |
||
142 | // TODO: function RecoverFile: boolean; override; |
||
143 | // TODO: function OpenFile: boolean; override; |
||
144 | end; |
||
145 | |||
146 | TRbRecycleBin = class(TObject) |
||
147 | strict private |
||
148 | FFileOrDirectory: string; |
||
149 | FSID: string; |
||
76 | daniel-mar | 150 | FTolerantReading: boolean; |
75 | daniel-mar | 151 | public |
152 | constructor Create(AFileOrDirectory: string; ASID: string=''); |
||
153 | |||
154 | function GetItem(id: string): TRbRecycleBinItem; |
||
155 | procedure ListItems(list: TObjectList{TRbRecycleBinItem}); |
||
156 | function CheckIndexes(slErrors: TStrings): boolean; |
||
157 | |||
158 | property FileOrDirectory: string read FFileOrDirectory; |
||
159 | property SID: string read FSID; |
||
76 | daniel-mar | 160 | |
161 | // Allows an index file to be read, even if an incompatible multiboot combination |
||
162 | // corrupted it. Default: true. |
||
163 | property TolerantReading: boolean read FTolerantReading write FTolerantReading; |
||
75 | daniel-mar | 164 | end; |
165 | |||
166 | // TODO: Wie sieht es aus mit Laufwerken, die nur als Mount-Point eingebunden sind? |
||
167 | TRbDrive = class(TObject) |
||
168 | strict private |
||
89 | daniel-mar | 169 | FDriveLetter: AnsiChar; |
75 | daniel-mar | 170 | |
78 | daniel-mar | 171 | function OldCapacityPercent(var res: integer): boolean; // in % (0-100) |
172 | function NewCapacityAbsolute(var res: integer): boolean; // in MB |
||
173 | |||
174 | function DiskSize: integer; // in MB |
||
175 | function DriveNumber: integer; |
||
75 | daniel-mar | 176 | strict protected |
177 | function IsFAT: boolean; |
||
178 | procedure CheckDriveExisting; |
||
78 | daniel-mar | 179 | |
180 | // will return NULL_GUID in case of an error or if it is not supported |
||
181 | function GetVolumeGUID: TGUID; |
||
182 | function GetVolumeGUIDAvailable: boolean; |
||
183 | |||
184 | // TODO: get drive serial |
||
75 | daniel-mar | 185 | public |
89 | daniel-mar | 186 | constructor Create(ADriveLetter: AnsiChar); |
75 | daniel-mar | 187 | |
188 | // Wenn UserSID='', dann werden alle Recycler gefunden |
||
189 | procedure ListRecycleBins(list: TObjectList{TRbRecycleBin}; UserSID: string=''); |
||
190 | |||
89 | daniel-mar | 191 | property DriveLetter: AnsiChar read FDriveLetter; |
75 | daniel-mar | 192 | property VolumeGUID: TGUID read GetVolumeGUID; |
77 | daniel-mar | 193 | property VolumeGUIDAvailable: boolean read GetVolumeGUIDAvailable; |
75 | daniel-mar | 194 | function GetAPIInfo: TSHQueryRBInfo; |
195 | function GetSize: int64; |
||
196 | function GetNumItems: int64; |
||
197 | function IsEmpty: boolean; |
||
198 | |||
78 | daniel-mar | 199 | function GetMaxPercentUsage: Extended; // 0..1 |
200 | function GetMaxAbsoluteUsage: integer; // in MB |
||
75 | daniel-mar | 201 | function GetNukeOnDelete: boolean; |
202 | end; |
||
203 | |||
204 | GPOLICYBOOL = (gpUndefined, gpEnabled, gpDisabled); |
||
205 | |||
206 | TRecycleBinManager = class(TObject) |
||
207 | public |
||
208 | class procedure ListDrives(list: TObjectList{TRbDrive}); static; |
||
89 | daniel-mar | 209 | class function RecycleBinPossible(Drive: AnsiChar): boolean; static; |
75 | daniel-mar | 210 | |
211 | class function OwnRecyclersSize: int64; static; |
||
212 | class function OwnRecyclersNumItems: int64; static; |
||
213 | class function OwnRecyclersEmpty: boolean; static; |
||
214 | |||
215 | class function EmptyOwnRecyclers(flags: cardinal): boolean; overload; static; |
||
216 | class function EmptyOwnRecyclers(sound, progress, confirmation: boolean): boolean; overload; static; |
||
217 | |||
218 | class function RecyclerGetCurrentIconString: string; static; |
||
219 | class function RecyclerGetDefaultIconString: string; static; |
||
220 | class function RecyclerGetEmptyIconString: string; static; |
||
221 | class function RecyclerGetFullIconString: string; static; |
||
222 | |||
223 | class function GetGlobalMaxPercentUsage: integer; static; // TODO: In Win Vista: absolute and not relative sizes |
||
224 | class function GetGlobalNukeOnDelete: boolean; static; |
||
225 | class function UsesGlobalSettings: boolean; static; |
||
226 | |||
227 | class function RecyclerGetName: string; static; |
||
228 | class function RecyclerGetInfoTip: string; static; |
||
229 | class function RecyclerGetIntroText: string; static; |
||
230 | |||
231 | class function RecyclerEmptyEventGetCurrentSound: string; static; |
||
232 | class function RecyclerEmptyEventGetDefaultSound: string; static; |
||
233 | class function RecyclerEmptyEventGetName: string; static; |
||
234 | class function RecyclerEmptyEventGetSound(ACategory: string): string; static; |
||
235 | class procedure RecyclerEmptyEventGetSoundCategories(AStringList: TStringList); static; |
||
236 | |||
237 | // TODO: In future also detect for other users |
||
238 | // TODO: Also make a setter (incl. Message to Windows Explorer?) |
||
239 | class function RecyclerGroupPolicyConfirmFileDelete: GPOLICYBOOL; static; |
||
240 | class function RecyclerGroupPolicyNoRecycleFiles: GPOLICYBOOL; static; |
||
241 | class function RecyclerGroupPolicyRecycleBinSize: integer; static; |
||
242 | |||
243 | class function RecyclerConfirmationDialogEnabled: boolean; static; |
||
244 | class procedure RecyclerConfirmationDialogSetEnabled(NewSetting: boolean); static; |
||
245 | class function RecyclerShellStateConfirmationDialogEnabled: boolean; static; |
||
246 | |||
247 | // Diese Funktion ist false, wenn sie z.B. unter Windows 95 ohne Internet Explorer |
||
248 | // 4.0 Shell Extension ausgeführt wird. Wenn abwärtskompatibler Code geschrieben |
||
249 | // werden soll, sollte RecyclerQueryFunctionAvailable() verwendet werden, da |
||
250 | // unter Windows 95 folgende Funktionalitäten NICHT vorhanden sind: |
||
251 | // - RecyclerIsEmpty |
||
252 | // - RecyclerGetNumItems |
||
253 | // - RecyclerGetSize |
||
254 | // - RecyclerGetAPIInfo |
||
255 | class function RecyclerQueryFunctionAvailable: boolean; static; |
||
256 | |||
257 | class function RecyclerAddFileOrFolder(FileOrFolder: string; confirmation: boolean=false): boolean; static; |
||
258 | end; |
||
259 | |||
260 | function GPBoolToString(value: GPOLICYBOOL): string; |
||
261 | |||
262 | implementation |
||
263 | |||
264 | uses |
||
265 | RecBinUnitLowLvl; |
||
266 | |||
267 | {$REGION 'WinAPI/RTL declarations'} |
||
268 | (* |
||
269 | const |
||
270 | {$IFDEF MSWINDOWS} |
||
271 | shell32 = 'shell32.dll'; |
||
272 | advapi32 = 'advapi32.dll'; |
||
273 | kernel32 = 'kernel32.dll'; |
||
274 | {$ENDIF} |
||
275 | {$IFDEF LINUX} |
||
276 | shell32 = 'libshell32.borland.so'; |
||
277 | advapi32 = 'libwine.borland.so'; |
||
278 | kernel32 = 'libwine.borland.so'; |
||
279 | {$ENDIF} |
||
280 | *) |
||
281 | |||
282 | type |
||
283 | SHELLSTATE = record |
||
284 | Flags1: DWORD; |
||
285 | (* |
||
286 | BOOL fShowAllObjects : 1; |
||
287 | BOOL fShowExtensions : 1; |
||
288 | BOOL fNoConfirmRecycle : 1; |
||
289 | |||
290 | BOOL fShowSysFiles : 1; |
||
291 | BOOL fShowCompColor : 1; |
||
292 | BOOL fDoubleClickInWebView : 1; |
||
293 | BOOL fDesktopHTML : 1; |
||
294 | BOOL fWin95Classic : 1; |
||
295 | BOOL fDontPrettyPath : 1; |
||
296 | BOOL fShowAttribCol : 1; // No longer used, dead bit |
||
297 | BOOL fMapNetDrvBtn : 1; |
||
298 | BOOL fShowInfoTip : 1; |
||
299 | BOOL fHideIcons : 1; |
||
300 | BOOL fWebView : 1; |
||
301 | BOOL fFilter : 1; |
||
302 | BOOL fShowSuperHidden : 1; |
||
303 | BOOL fNoNetCrawling : 1; |
||
304 | *) |
||
305 | dwWin95Unused: DWORD; // Win95 only - no longer supported pszHiddenFileExts |
||
306 | uWin95Unused: UINT; // Win95 only - no longer supported cbHiddenFileExts |
||
307 | |||
308 | // Note: Not a typo! This is a persisted structure so we cannot use LPARAM |
||
309 | lParamSort: Integer; |
||
310 | iSortDirection: Integer; |
||
311 | |||
312 | version: UINT; |
||
313 | |||
314 | // new for win2k. need notUsed var to calc the right size of ie4 struct |
||
315 | // FIELD_OFFSET does not work on bit fields |
||
316 | uNotUsed: UINT; // feel free to rename and use |
||
317 | Flags2: DWORD; |
||
318 | (* |
||
319 | BOOL fSepProcess: 1; |
||
320 | // new for Whistler. |
||
321 | BOOL fStartPanelOn: 1; //Indicates if the Whistler StartPanel mode is ON or OFF. |
||
322 | BOOL fShowStartPage: 1; //Indicates if the Whistler StartPage on desktop is ON or OFF. |
||
323 | UINT fSpareFlags : 13; |
||
324 | *) |
||
325 | end; |
||
326 | LPSHELLSTATE = ^SHELLSTATE; |
||
327 | |||
328 | const |
||
329 | // Masks for the SHELLSTATE |
||
330 | SSF_SHOWALLOBJECTS = $00000001; |
||
331 | SSF_SHOWEXTENSIONS = $00000002; |
||
332 | SSF_HIDDENFILEEXTS = $00000004; |
||
333 | SSF_SERVERADMINUI = $00000004; |
||
334 | SSF_SHOWCOMPCOLOR = $00000008; |
||
335 | SSF_SORTCOLUMNS = $00000010; |
||
336 | SSF_SHOWSYSFILES = $00000020; |
||
337 | SSF_DOUBLECLICKINWEBVIEW = $00000080; |
||
338 | SSF_SHOWATTRIBCOL = $00000100; |
||
339 | SSF_DESKTOPHTML = $00000200; |
||
340 | SSF_WIN95CLASSIC = $00000400; |
||
341 | SSF_DONTPRETTYPATH = $00000800; |
||
342 | SSF_SHOWINFOTIP = $00002000; |
||
343 | SSF_MAPNETDRVBUTTON = $00001000; |
||
344 | SSF_NOCONFIRMRECYCLE = $00008000; |
||
345 | SSF_HIDEICONS = $00004000; |
||
346 | SSF_FILTER = $00010000; |
||
347 | SSF_WEBVIEW = $00020000; |
||
348 | SSF_SHOWSUPERHIDDEN = $00040000; |
||
349 | SSF_SEPPROCESS = $00080000; |
||
350 | SSF_NONETCRAWLING = $00100000; |
||
351 | SSF_STARTPANELON = $00200000; |
||
352 | SSF_SHOWSTARTPAGE = $00400000; |
||
353 | {$ENDREGION} |
||
354 | |||
355 | resourcestring |
||
356 | LNG_API_CALL_ERROR = 'Error while calling the API. Additional information: "%s".'; |
||
357 | LNG_NOT_CALLABLE = '%s not callable'; |
||
358 | LNG_ERROR_CODE = '%s (Arguments: %s) returns error code %s'; |
||
359 | LNG_FILE_NOT_FOUND = 'File not found: %s'; |
||
76 | daniel-mar | 360 | LNG_INVALID_INFO_FORMAT = 'Unexpected record size: %s'; |
75 | daniel-mar | 361 | LNG_DRIVE_NOT_EXISTING = 'Drive %s does not exist.'; |
362 | |||
363 | const |
||
93 | daniel-mar | 364 | {$IFDEF UNICODE} |
365 | C_SHEmptyRecycleBin = 'SHEmptyRecycleBinW'; |
||
366 | C_SHQueryRecycleBin = 'SHQueryRecycleBinW'; |
||
367 | C_GetVolumeNameForVolumeMountPoint = 'GetVolumeNameForVolumeMountPointW'; |
||
368 | {$ELSE} |
||
369 | C_SHEmptyRecycleBin = 'SHEmptyRecycleBinA'; |
||
75 | daniel-mar | 370 | C_SHQueryRecycleBin = 'SHQueryRecycleBinA'; |
371 | C_GetVolumeNameForVolumeMountPoint = 'GetVolumeNameForVolumeMountPointA'; |
||
93 | daniel-mar | 372 | {$ENDIF} |
75 | daniel-mar | 373 | C_SHGetSettings = 'SHGetSettings'; |
374 | C_SHGetSetSettings = 'SHGetSetSettings'; |
||
375 | |||
376 | type |
||
377 | TSHQueryRecycleBin = function(pszRootPath: LPCTSTR; var pSHQueryRBInfo: TSHQueryRBInfo): HRESULT; stdcall; |
||
93 | daniel-mar | 378 | TGetVolumeNameForVolumeMountPoint = function(lpszVolumeMountPoint: LPCTSTR; lpszVolumeName: LPTSTR; cchBufferLength: DWORD): BOOL; stdcall; |
379 | TSHEmptyRecycleBin = function(Wnd: HWND; pszRootPath: LPCTSTR; dwFlags: DWORD): HRESULT; stdcall; |
||
82 | daniel-mar | 380 | TSHGetSettings = procedure(var lpss: SHELLSTATE; dwMask: DWORD); stdcall; |
381 | TSHGetSetSettings = procedure(var lpss: SHELLSTATE; dwMask: DWORD; bSet: BOOL); stdcall; |
||
75 | daniel-mar | 382 | |
90 | daniel-mar | 383 | function WideCharArrayToWideString(x: array of WideChar): WideString; |
384 | var |
||
385 | i: integer; |
||
386 | begin |
||
387 | // In x86, the "cast" works with WideString. |
||
388 | // In x64, it does not work (outputs empty string, without compiler warning!) |
||
389 | // So, we created this fake-cast |
||
390 | SetLength(result, Length(x)); |
||
391 | for i := 0 to Length(x)-1 do |
||
392 | result[i+1] := x[i]; |
||
393 | end; |
||
394 | |||
395 | function AnsiCharArrayToWideString(x: array of AnsiChar): WideString; |
||
396 | var |
||
397 | i: integer; |
||
398 | begin |
||
399 | SetLength(result, Length(x)); |
||
400 | for i := 0 to Length(x)-1 do |
||
401 | result[i+1] := WideChar(x[i]); |
||
402 | end; |
||
403 | |||
88 | daniel-mar | 404 | procedure AnsiRemoveNulChars(var s: AnsiString); |
405 | begin |
||
406 | while (Length(s) > 0) and (s[Length(s)] = #0) do |
||
407 | s := Copy(s, 1, Length(s)-1); |
||
408 | end; |
||
409 | |||
410 | procedure UnicodeRemoveNulChars(var s: WideString); |
||
411 | begin |
||
412 | while (Length(s) > 0) and (s[Length(s)] = #0) do |
||
413 | s := Copy(s, 1, Length(s)-1); |
||
414 | end; |
||
415 | |||
89 | daniel-mar | 416 | function GetDriveGUID(driveLetter: AnsiChar; var guid: TGUID): DWORD; |
75 | daniel-mar | 417 | var |
93 | daniel-mar | 418 | Buffer: array[0..50] of Char; |
75 | daniel-mar | 419 | x: string; |
93 | daniel-mar | 420 | PGetVolumeNameForVolumeMountPoint: TGetVolumeNameForVolumeMountPoint; |
75 | daniel-mar | 421 | RBHandle: THandle; |
422 | begin |
||
423 | RBHandle := LoadLibrary(kernel32); |
||
424 | try |
||
425 | if RBHandle <> 0 then |
||
426 | begin |
||
93 | daniel-mar | 427 | PGetVolumeNameForVolumeMountPoint := GetProcAddress(RBHandle, C_GetVolumeNameForVolumeMountPoint); |
428 | if not Assigned(@PGetVolumeNameForVolumeMountPoint) then |
||
75 | daniel-mar | 429 | begin |
430 | result := GetLastError; |
||
431 | FreeLibrary(RBHandle); |
||
432 | RBHandle := 0; |
||
433 | end |
||
434 | else |
||
435 | begin |
||
93 | daniel-mar | 436 | if PGetVolumeNameForVolumeMountPoint(PChar(driveLetter+':\'), Buffer, SizeOf(Buffer)) then |
75 | daniel-mar | 437 | begin |
89 | daniel-mar | 438 | x := string(buffer); |
75 | daniel-mar | 439 | x := copy(x, 11, 38); |
440 | guid := StringToGUID(x); |
||
441 | result := ERROR_SUCCESS; |
||
442 | end |
||
443 | else |
||
444 | result := GetLastError; |
||
445 | end; |
||
446 | end |
||
447 | else result := GetLastError; |
||
448 | finally |
||
449 | if RBHandle <> 0 then FreeLibrary(RBHandle); |
||
450 | end; |
||
451 | end; |
||
452 | |||
453 | function FileTimeToDateTime(FileTime: FILETIME): TDateTime; |
||
454 | {$IFDEF FILETIME_DELPHI_CODE} |
||
455 | var |
||
456 | SystemTime: TSystemTime; |
||
457 | nowUTC: TDateTime; |
||
458 | gmtDifference: int64; |
||
459 | begin |
||
460 | GetSystemTime(SystemTime); |
||
461 | with SystemTime do |
||
462 | begin |
||
463 | // http://www.delphipraxis.net/post340194.html#34019 |
||
464 | nowUTC := EncodeDate(wYear, wMonth, wDay) + |
||
465 | EncodeTime(wHour, wMinute, wSecond, wMilliseconds); |
||
466 | end; |
||
467 | |||
468 | gmtDifference := datetimetounix(nowUTC) - datetimetounix(Now); |
||
469 | |||
470 | // http://www.e-fense.com/helix/Docs/Recycler_Bin_Record_Reconstruction.pdf states: |
||
471 | // UnixTime = 0.0000001 * NTTime + 11644473600 |
||
472 | // This is wrong! The correct formula is: |
||
473 | // UnixTime = 0.0000001 * NTTime - 11644473600 + c * 3600 |
||
474 | // c = GMT-Difference (MEZ = 1) inclusive daylight saving time (+3600 seconds) |
||
475 | result := unixtodatetime(round(0.0000001 * int64(FileTime)) - 11644473600 - gmtDifference); |
||
476 | {$ELSE} |
||
477 | var |
||
478 | LocalTime: TFileTime; |
||
479 | DOSTime: Integer; |
||
480 | begin |
||
481 | FileTimeToLocalFileTime(FileTime, LocalTime); |
||
482 | FileTimeToDosDateTime(LocalTime, LongRec(DOSTime).Hi, LongRec(DOSTime).Lo); |
||
483 | Result := FileDateToDateTime(DOSTime); |
||
484 | {$ENDIF} |
||
485 | end; |
||
486 | |||
487 | function DeleteDirectory(const Name: string): boolean; |
||
488 | var |
||
489 | F: TSearchRec; |
||
490 | begin |
||
491 | result := true; |
||
492 | if FindFirst(IncludeTrailingPathDelimiter(Name) + '*', faAnyFile, F) = 0 then |
||
493 | begin |
||
494 | try |
||
495 | repeat |
||
496 | if F.Attr and faDirectory <> 0 then |
||
497 | begin |
||
498 | if (F.Name <> '.') and (F.Name <> '..') then |
||
499 | begin |
||
500 | result := result and DeleteDirectory(IncludeTrailingPathDelimiter(Name) + F.Name); |
||
501 | end; |
||
502 | end |
||
503 | else |
||
504 | begin |
||
505 | if not DeleteFile(IncludeTrailingPathDelimiter(Name) + F.Name) then result := false; |
||
506 | end; |
||
507 | until FindNext(F) <> 0; |
||
508 | finally |
||
509 | FindClose(F); |
||
510 | end; |
||
511 | if not RemoveDir(Name) then result := false; |
||
512 | end; |
||
513 | end; |
||
514 | |||
89 | daniel-mar | 515 | function DriveLetterToDriveNumber(driveLetter: AnsiChar): integer; |
75 | daniel-mar | 516 | var |
517 | tmp: string; |
||
518 | begin |
||
89 | daniel-mar | 519 | tmp := LowerCase(string(driveLetter)); |
75 | daniel-mar | 520 | result := Ord(tmp[1])-Ord('a'); |
521 | end; |
||
522 | |||
523 | function GetStringFromDLL(filename: string; num: integer): string; |
||
524 | const |
||
525 | // Source: http://www.eggheadcafe.com/forumarchives/vcmfc/sep2005/post23917443.asp |
||
526 | MAX_BUF = 4097; // OK? |
||
527 | var |
||
528 | hLib: THandle; |
||
529 | buf: array[0..MAX_BUF] of char; |
||
530 | begin |
||
531 | hLib := LoadLibrary(PChar(filename)); |
||
532 | try |
||
533 | LoadString(hLib, num, buf, sizeof(buf)); |
||
534 | result := buf; |
||
535 | finally |
||
536 | FreeLibrary(hLib); |
||
537 | end; |
||
538 | end; |
||
539 | |||
540 | function ExpandEnvStr(const szInput: string): string; |
||
541 | const |
||
542 | MAXSIZE = 32768; // laut PSDK sind 32k das Maximum |
||
543 | begin |
||
544 | // Source: http://www.delphi-library.de/topic_Umgebungsvariable+in+einem+String+aufloesen_20516,0.html |
||
545 | SetLength(Result,MAXSIZE); |
||
546 | SetLength(Result,ExpandEnvironmentStrings(pchar(szInput), |
||
547 | @Result[1],length(Result))-1); //-1 um abschließendes #0 zu verwerfen |
||
548 | end; |
||
549 | |||
550 | function DecodeReferenceString(s: string): string; |
||
551 | var |
||
552 | dll, id, lang, cache: string; |
||
553 | sl, sl2: tstringlist; |
||
554 | begin |
||
555 | // Beispiele |
||
556 | // Papierkorb -- Windows 95 |
||
557 | // @C:\WINNT\system32\shell32.dll,-8964@1031,Papierkorb -- Windows 2000 |
||
558 | |||
559 | if Copy(s, 1, 1) = '@' then |
||
560 | begin |
||
561 | // Referenz auf eine DLL |
||
562 | // @<dll>,-<id>[@<lang>][,<cache>] |
||
563 | |||
564 | sl := TStringList.Create; |
||
565 | try |
||
566 | // '@' am Anfang entfernen |
||
567 | s := Copy(s, 2, length(s)-1); |
||
568 | |||
569 | // Nach ',' auftrennen |
||
570 | // sl[0] --> dll |
||
571 | // sl[1] --> -id@lang |
||
572 | // sl[2] --> cache |
||
573 | sl.CommaText := s; |
||
574 | |||
575 | if sl.Count > 2 then |
||
576 | begin |
||
577 | // Das Ergebnis ist bereits im Klartext vorhanden und muss nicht extrahiert werden |
||
578 | // Ist bei Windows 2000 der Fall |
||
579 | cache := sl[2]; |
||
580 | result := cache; |
||
581 | exit; |
||
582 | end; |
||
583 | |||
584 | if sl.Count > 1 then |
||
585 | begin |
||
586 | dll := sl[0]; |
||
587 | |||
588 | sl2 := TStringList.Create; |
||
589 | try |
||
590 | // Nach '@' auftrennen |
||
591 | // sl2[0] --> id |
||
592 | // sl2[1] --> lang |
||
593 | sl2.CommaText := StringReplace(sl[1], '@', ',', [rfReplaceAll]); |
||
594 | |||
595 | id := sl2[0]; |
||
596 | |||
597 | if sl2.Count > 1 then |
||
598 | begin |
||
599 | // ToDo: In Zukunft beachten, sofern möglich |
||
600 | lang := sl2[1]; |
||
601 | end; |
||
602 | |||
603 | // Umgebungsvariablen erkennen und Minuszeichen entfernen |
||
604 | result := GetStringFromDLL(ExpandEnvStr(dll), -StrToInt(id)); |
||
605 | finally |
||
606 | sl2.Free; |
||
607 | end; |
||
608 | end |
||
609 | else |
||
610 | begin |
||
611 | // Zu wenige Informationen! |
||
612 | |||
613 | result := ''; |
||
614 | end; |
||
615 | finally |
||
616 | sl.Free; |
||
617 | end; |
||
618 | end |
||
619 | else |
||
620 | begin |
||
621 | // Kein Hinweis auf eine Referenz |
||
622 | result := s; |
||
623 | end; |
||
624 | end; |
||
625 | |||
626 | function GPBoolToString(value: GPOLICYBOOL): string; |
||
627 | begin |
||
628 | case value of |
||
629 | gpUndefined: result := 'Not configured'; |
||
630 | gpEnabled: result := 'Enabled'; |
||
631 | gpDisabled: result := 'Disabled'; |
||
632 | end; |
||
633 | end; |
||
634 | |||
635 | { TRbRecycleBin } |
||
636 | |||
637 | constructor TRbRecycleBin.Create(AFileOrDirectory: string; ASID: string=''); |
||
638 | begin |
||
639 | inherited Create; |
||
640 | |||
641 | FFileOrDirectory := AFileOrDirectory; |
||
642 | FSID := ASID; |
||
76 | daniel-mar | 643 | TolerantReading := true; |
75 | daniel-mar | 644 | end; |
645 | |||
646 | // TODO: also a function that tests if the data files are still existing |
||
647 | function TRbRecycleBin.CheckIndexes(slErrors: TStrings): boolean; |
||
648 | |||
649 | procedure _Assert(assertion: boolean; msg: string; args: array of const); |
||
650 | begin |
||
651 | if not assertion then |
||
652 | begin |
||
653 | slErrors.Add(Format(msg, args)); |
||
654 | result := false; |
||
655 | end; |
||
656 | end; |
||
657 | |||
658 | procedure _HandleIndexFile(AFile: string); |
||
659 | var |
||
660 | fs: TFileStream; |
||
76 | daniel-mar | 661 | infoHdr: TRbInfoHeader; |
75 | daniel-mar | 662 | resourcestring |
663 | LNG_IDXERR_VISTA_FILESIZE = '%s: Vista index file has wrong size'; |
||
664 | LNG_IDXERR_INFO_RECSIZE_UNEXPECTED = '%s: record size unexpected'; |
||
665 | LNG_IDXERR_INFO_UNEXPECTED_EOF = '%s: file size wrong'; |
||
666 | begin |
||
667 | fs := TFileStream.Create(AFile, fmOpenRead); |
||
668 | try |
||
669 | fs.Seek(0, soFromBeginning); |
||
670 | |||
671 | if SameText(copy(ExtractFileName(AFile), 1, 2), '$I') then |
||
672 | begin |
||
673 | _Assert(fs.Size = SizeOf(TRbVistaItem), LNG_IDXERR_VISTA_FILESIZE, [AFile]); |
||
674 | end |
||
76 | daniel-mar | 675 | else if SameText(ExtractFileName(AFile), 'INFO') or |
676 | SameText(ExtractFileName(AFile), 'INFO2') then |
||
75 | daniel-mar | 677 | begin |
678 | fs.ReadBuffer(infoHdr, SizeOf(infoHdr)); |
||
76 | daniel-mar | 679 | _Assert((infoHdr.recordLength = SizeOf(TRbInfoRecordA)) or |
680 | (infoHdr.recordLength = SizeOf(TRbInfoRecordW)), LNG_IDXERR_INFO_RECSIZE_UNEXPECTED, [AFile]); |
||
75 | daniel-mar | 681 | _Assert((fs.Size-fs.Position) mod infoHdr.recordLength = 0, LNG_IDXERR_INFO_UNEXPECTED_EOF, [AFile]); |
76 | daniel-mar | 682 | // TODO: we can also check infoHdr.totalSize or infoHdr.totalEntries |
75 | daniel-mar | 683 | end |
76 | daniel-mar | 684 | else Assert(false); |
75 | daniel-mar | 685 | |
686 | // TODO: we could check each item for invalid stuff...? |
||
687 | finally |
||
688 | FreeAndNil(fs); |
||
689 | end; |
||
690 | end; |
||
691 | |||
692 | procedure _HandleVistaDir(ADirectory: string); |
||
693 | var |
||
694 | SR: TSearchRec; |
||
695 | begin |
||
696 | ADirectory := IncludeTrailingPathDelimiter(ADirectory); |
||
697 | |||
698 | if FindFirst(ADirectory + '$I*', faAnyFile, SR) = 0 then |
||
699 | begin |
||
700 | repeat |
||
701 | _HandleIndexFile(ADirectory+sr.Name); |
||
702 | until FindNext(SR) <> 0; |
||
703 | end; |
||
704 | FindClose(SR); |
||
705 | end; |
||
706 | |||
707 | begin |
||
708 | result := true; |
||
709 | |||
710 | if DirectoryExists(FFileOrDirectory) then // Vista, as well as directories with INFO and INFO2 |
||
711 | begin |
||
712 | _HandleVistaDir(FFileOrDirectory); |
||
713 | |||
714 | if FileExists(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO2') then |
||
715 | begin |
||
716 | _HandleIndexFile(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO2'); |
||
717 | end; |
||
718 | |||
719 | if FileExists(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO') then |
||
720 | begin |
||
721 | _HandleIndexFile(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO'); |
||
722 | end; |
||
723 | end |
||
724 | else if FileExists(FFileOrDirectory) then |
||
725 | begin |
||
726 | _HandleIndexFile(FFileOrDirectory); |
||
727 | end |
||
728 | else raise Exception.CreateFmt(LNG_FILE_NOT_FOUND, [FFileOrDirectory]); |
||
729 | end; |
||
730 | |||
731 | function TRbRecycleBin.GetItem(id: string): TRbRecycleBinItem; |
||
732 | |||
733 | procedure _HandleIndexFile(AFile: string); |
||
734 | var |
||
735 | fs: TFileStream; |
||
76 | daniel-mar | 736 | infoHdr: TRbInfoHeader; |
75 | daniel-mar | 737 | testItem: TRbRecycleBinItem; |
738 | begin |
||
739 | fs := TFileStream.Create(AFile, fmOpenRead); |
||
740 | try |
||
741 | fs.Seek(0, soFromBeginning); |
||
742 | |||
82 | daniel-mar | 743 | if SameText(ExtractFileName(AFile), '$I'+id) then |
75 | daniel-mar | 744 | begin |
82 | daniel-mar | 745 | result := TRbVistaItem.Create(fs, AFile, id); |
75 | daniel-mar | 746 | end |
747 | else |
||
748 | begin |
||
749 | fs.ReadBuffer(infoHdr, SizeOf(infoHdr)); |
||
750 | case infoHdr.recordLength of |
||
76 | daniel-mar | 751 | SizeOf(TRbInfoRecordA): |
75 | daniel-mar | 752 | begin |
753 | while fs.Position < fs.size do |
||
754 | begin |
||
76 | daniel-mar | 755 | testItem := TRbInfoAItem.Create(fs, AFile); |
75 | daniel-mar | 756 | if testItem.ID = id then |
757 | begin |
||
758 | result := testItem; |
||
759 | break; |
||
760 | end; |
||
761 | end; |
||
762 | end; |
||
76 | daniel-mar | 763 | SizeOf(TRbInfoRecordW): |
75 | daniel-mar | 764 | begin |
765 | while fs.Position < fs.size do |
||
766 | begin |
||
76 | daniel-mar | 767 | testItem := TRbInfoWItem.Create(fs, AFile); |
75 | daniel-mar | 768 | if testItem.ID = id then |
769 | begin |
||
770 | result := testItem; |
||
771 | break; |
||
772 | end; |
||
773 | end; |
||
774 | end |
||
775 | else |
||
776 | begin |
||
777 | raise Exception.CreateFmt(LNG_INVALID_INFO_FORMAT, [AFile]); |
||
778 | end; |
||
779 | end; |
||
780 | end; |
||
781 | finally |
||
782 | FreeAndNil(fs); |
||
783 | end; |
||
784 | end; |
||
785 | |||
786 | procedure _HandleVistaDir(ADirectory: string); |
||
787 | var |
||
788 | SR: TSearchRec; |
||
789 | fs: TFileStream; |
||
790 | id: string; |
||
791 | begin |
||
792 | ADirectory := IncludeTrailingPathDelimiter(ADirectory); |
||
793 | |||
794 | if FileExists(ADirectory + '$I' + id) then |
||
795 | begin |
||
796 | fs := TFileStream.Create(ADirectory+sr.Name, fmOpenRead); |
||
797 | try |
||
798 | fs.Seek(0, soFromBeginning); |
||
799 | result := TRbVistaItem.Create(fs, ADirectory+sr.Name, id); |
||
800 | finally |
||
801 | FreeAndNil(fs); |
||
802 | end; |
||
803 | end; |
||
804 | end; |
||
805 | |||
806 | begin |
||
807 | result := nil; |
||
808 | |||
809 | if DirectoryExists(FFileOrDirectory) then // Vista, as well as directories with INFO and INFO2 |
||
810 | begin |
||
811 | _HandleVistaDir(FFileOrDirectory); |
||
812 | if Assigned(result) then exit; |
||
813 | |||
814 | if FileExists(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO2') then |
||
815 | begin |
||
816 | _HandleIndexFile(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO2'); |
||
817 | if Assigned(result) then exit; |
||
818 | end; |
||
819 | |||
820 | if FileExists(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO') then |
||
821 | begin |
||
822 | _HandleIndexFile(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO'); |
||
823 | if Assigned(result) then exit; |
||
824 | end; |
||
825 | end |
||
826 | else if FileExists(FFileOrDirectory) then |
||
827 | begin |
||
828 | _HandleIndexFile(FFileOrDirectory); |
||
829 | if Assigned(result) then exit; |
||
830 | end |
||
831 | else raise Exception.CreateFmt(LNG_FILE_NOT_FOUND, [FFileOrDirectory]); |
||
832 | end; |
||
833 | |||
834 | procedure TRbRecycleBin.ListItems(list: TObjectList{TRbRecycleBinItem}); |
||
835 | |||
836 | procedure _HandleIndexFile(AFile: string); |
||
837 | var |
||
838 | fs: TFileStream; |
||
76 | daniel-mar | 839 | infoHdr: TRbInfoHeader; |
75 | daniel-mar | 840 | testID: string; |
76 | daniel-mar | 841 | wTest: TRbInfoWItem; |
842 | bakPosition: int64; |
||
75 | daniel-mar | 843 | begin |
844 | fs := TFileStream.Create(AFile, fmOpenRead); |
||
845 | try |
||
846 | fs.Seek(0, soFromBeginning); |
||
847 | |||
82 | daniel-mar | 848 | if SameText(copy(ExtractFileName(AFile), 1, 2), '$I') then |
75 | daniel-mar | 849 | begin |
82 | daniel-mar | 850 | testID := copy(testID, 3, Length(testID)-2); |
75 | daniel-mar | 851 | list.Add(TRbVistaItem.Create(fs, AFile, testID)); |
852 | end |
||
853 | else |
||
854 | begin |
||
76 | daniel-mar | 855 | if TolerantReading then |
856 | begin |
||
857 | // This is a special treatment how to recover data from an INFO/INFO2 file |
||
858 | // which was corrupted by an incompatible multiboot configuration. |
||
859 | // Example: |
||
860 | // - Win95 without IE4 and WinNT4 both write into the INFO file. But Win95 appends the ANSI record and WinNT appends an Unicode record. |
||
861 | // - Win95 with IE4 and Windows 2000/2003/XP write into the INFO2 file. But Win9x appends the ANSI record and Win2k+ appends an Unicode record. |
||
862 | fs.ReadBuffer(infoHdr, SizeOf(infoHdr)); |
||
863 | while fs.Position < fs.size do |
||
75 | daniel-mar | 864 | begin |
76 | daniel-mar | 865 | // Can we actually read a Unicode record? |
866 | if fs.Position + SizeOf(TRbInfoRecordW) <= fs.Size then |
||
75 | daniel-mar | 867 | begin |
76 | daniel-mar | 868 | // Try to read the Unicode record and check if it is valid |
869 | // In case it is no Unicode record, then the Unicode part will be the |
||
870 | // ANSI source name of the next record. In this case, we won't get |
||
871 | // a ':' at the Unicode string. |
||
872 | bakPosition := fs.Position; |
||
873 | wTest := TRbInfoWItem.Create(fs, AFile); |
||
874 | if Copy(wTest.SourceUnicode, 2, 1) = ':' then |
||
875 | begin |
||
876 | // Yes, it is a valid Unicode record. |
||
877 | list.Add(wTest); |
||
878 | end |
||
879 | else |
||
880 | begin |
||
881 | // No, it is not a valid Unicode record. Jump back, and we need |
||
882 | // to assume that the following record will be a valid ANSI record. |
||
883 | fs.Position := bakPosition; |
||
884 | list.Add(TRbInfoAItem.Create(fs, AFile)); |
||
885 | end; |
||
886 | end |
||
887 | else |
||
888 | begin |
||
889 | // No, there is not enough space left for an Unicode record. |
||
890 | // So we assume that the following record will be a valid ANSI record. |
||
891 | list.Add(TRbInfoAItem.Create(fs, AFile)); |
||
75 | daniel-mar | 892 | end; |
893 | end; |
||
76 | daniel-mar | 894 | end |
895 | else |
||
896 | begin |
||
897 | // This is the code for non-tolerant reading of the records. |
||
898 | fs.ReadBuffer(infoHdr, SizeOf(infoHdr)); |
||
899 | case infoHdr.recordLength of |
||
900 | SizeOf(TRbInfoRecordA): |
||
75 | daniel-mar | 901 | begin |
76 | daniel-mar | 902 | while fs.Position < fs.size do |
903 | begin |
||
904 | list.Add(TRbInfoAItem.Create(fs, AFile)); |
||
905 | end; |
||
75 | daniel-mar | 906 | end; |
76 | daniel-mar | 907 | SizeOf(TRbInfoRecordW): |
908 | begin |
||
909 | while fs.Position < fs.size do |
||
910 | begin |
||
911 | list.Add(TRbInfoWItem.Create(fs, AFile)); |
||
912 | end; |
||
913 | end |
||
914 | else |
||
915 | begin |
||
916 | raise Exception.CreateFmt(LNG_INVALID_INFO_FORMAT, [AFile]); |
||
917 | end; |
||
75 | daniel-mar | 918 | end; |
919 | end; |
||
920 | end; |
||
921 | finally |
||
922 | FreeAndNil(fs); |
||
923 | end; |
||
924 | end; |
||
925 | |||
926 | procedure _HandleVistaDir(ADirectory: string); |
||
927 | var |
||
928 | SR: TSearchRec; |
||
929 | fs: TFileStream; |
||
930 | id: string; |
||
931 | begin |
||
932 | ADirectory := IncludeTrailingPathDelimiter(ADirectory); |
||
933 | |||
934 | if FindFirst(ADirectory + '$I*', faAnyFile, SR) = 0 then |
||
935 | begin |
||
936 | repeat |
||
937 | id := sr.Name; |
||
938 | { id := ChangeFileExt(id, ''); } // Removed code: We keep the file extention as part of the ID, because we do not know if the ID is otherwise unique |
||
939 | id := Copy(id, 3, Length(id)-2); |
||
940 | |||
941 | fs := TFileStream.Create(ADirectory+sr.Name, fmOpenRead); |
||
942 | try |
||
943 | fs.Seek(0, soFromBeginning); |
||
944 | list.Add(TRbVistaItem.Create(fs, ADirectory+sr.Name, id)); |
||
945 | finally |
||
946 | FreeAndNil(fs); |
||
947 | end; |
||
948 | until FindNext(SR) <> 0; |
||
949 | end; |
||
950 | FindClose(SR); |
||
951 | end; |
||
952 | |||
953 | begin |
||
954 | if DirectoryExists(FFileOrDirectory) then // Vista, as well as directories with INFO and INFO2 |
||
955 | begin |
||
956 | _HandleVistaDir(FFileOrDirectory); |
||
957 | |||
958 | if FileExists(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO2') then |
||
959 | begin |
||
960 | _HandleIndexFile(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO2'); |
||
961 | end; |
||
962 | |||
963 | if FileExists(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO') then |
||
964 | begin |
||
965 | _HandleIndexFile(IncludeTrailingPathDelimiter(FFileOrDirectory) + 'INFO'); |
||
966 | end; |
||
967 | end |
||
968 | else if FileExists(FFileOrDirectory) then |
||
969 | begin |
||
76 | daniel-mar | 970 | _HandleIndexFile(FFileOrDirectory); // Either INFO, or INFO2, or a single Vista index file |
75 | daniel-mar | 971 | end |
972 | else raise Exception.CreateFmt(LNG_FILE_NOT_FOUND, [FFileOrDirectory]); |
||
973 | end; |
||
974 | |||
975 | { TRbDrive } |
||
976 | |||
977 | procedure TRbDrive.CheckDriveExisting; |
||
978 | begin |
||
979 | // Does the drive exist? |
||
980 | // see http://www.delphipraxis.net/post2933.html |
||
78 | daniel-mar | 981 | if not GetLogicalDrives and (1 shl DriveNumber) <> 0 then |
75 | daniel-mar | 982 | begin |
89 | daniel-mar | 983 | raise EInvalidDrive.CreateFmt(LNG_DRIVE_NOT_EXISTING, [UpperCase(string(FDriveLetter))+':']); |
75 | daniel-mar | 984 | end; |
985 | end; |
||
986 | |||
89 | daniel-mar | 987 | constructor TRbDrive.Create(ADriveLetter: AnsiChar); |
75 | daniel-mar | 988 | begin |
989 | inherited Create; |
||
990 | |||
991 | FDriveLetter := ADriveLetter; |
||
992 | CheckDriveExisting; |
||
993 | end; |
||
994 | |||
78 | daniel-mar | 995 | function TRbDrive.DiskSize: integer; |
996 | begin |
||
997 | result := SysUtils.DiskSize(DriveNumber+1 {0 is current, 1 is A}) div (1024*1024); |
||
998 | end; |
||
999 | |||
1000 | function TRbDrive.DriveNumber: integer; |
||
1001 | begin |
||
1002 | result := DriveLetterToDriveNumber(FDriveLetter); |
||
1003 | end; |
||
1004 | |||
75 | daniel-mar | 1005 | function TRbDrive.GetAPIInfo: TSHQueryRBInfo; |
1006 | var |
||
1007 | PSHQueryRecycleBin: TSHQueryRecycleBin; |
||
1008 | RBHandle: THandle; |
||
1009 | res: HRESULT; |
||
1010 | Path: string; |
||
1011 | begin |
||
1012 | Path := FDriveLetter + ':\'; |
||
1013 | |||
1014 | // Ref: http://www.delphipraxis.net/post1291.html |
||
1015 | |||
1016 | RBHandle := LoadLibrary(shell32); |
||
1017 | try |
||
1018 | PSHQueryRecycleBin := nil; |
||
1019 | if RBHandle <> 0 then |
||
1020 | begin |
||
1021 | PSHQueryRecycleBin := GetProcAddress(RBHandle, C_SHQueryRecycleBin); |
||
1022 | if not Assigned(@PSHQueryRecycleBin) then |
||
1023 | begin |
||
1024 | FreeLibrary(RBHandle); |
||
1025 | RBHandle := 0; |
||
1026 | end; |
||
1027 | end; |
||
1028 | |||
1029 | FillChar(result, SizeOf(TSHQueryRBInfo), 0); |
||
1030 | result.cbSize := SizeOf(TSHQueryRBInfo); |
||
1031 | |||
1032 | if (RBHandle <> 0) and Assigned(PSHQueryRecycleBin) then |
||
1033 | begin |
||
1034 | res := PSHQueryRecycleBin(PChar(Path), result); |
||
1035 | // if Succeeded(res) then |
||
1036 | if res = S_OK then |
||
1037 | begin |
||
1038 | // Alles OK, unser result hat nun die gewünschten Daten. |
||
1039 | end |
||
1040 | else |
||
1041 | begin |
||
1042 | // Since Windows Vista, SHQueryRecycleBin will fail with E_FAIL (80004005) |
||
1043 | // if Path is a floppy or CD drive... |
||
1044 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_ERROR_CODE, [C_SHQueryRecycleBin, Path, '0x'+IntToHex(res, 2*SizeOf(HRESULT))])]); |
||
1045 | end; |
||
1046 | end |
||
1047 | else |
||
1048 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_NOT_CALLABLE, [C_SHQueryRecycleBin])]); |
||
1049 | finally |
||
1050 | if RBHandle <> 0 then FreeLibrary(RBHandle); |
||
1051 | end; |
||
1052 | end; |
||
1053 | |||
78 | daniel-mar | 1054 | function TRbDrive.GetMaxPercentUsage: Extended; |
75 | daniel-mar | 1055 | var |
78 | daniel-mar | 1056 | abs: integer; // in MB |
1057 | rel: integer; // in % (0-100) |
||
1058 | gpSetting: integer; |
||
1059 | const |
||
1060 | DEFAULT_PERCENT = 10; // Windows 95 default |
||
1061 | begin |
||
1062 | gpSetting := TRecycleBinManager.RecyclerGroupPolicyRecycleBinSize; |
||
1063 | if gpSetting <> -1 then |
||
1064 | result := gpSetting / 100 |
||
1065 | else if TRecycleBinManager.UsesGlobalSettings then |
||
1066 | result := TRecycleBinManager.GetGlobalMaxPercentUsage / 100 |
||
1067 | else if OldCapacityPercent(rel) then |
||
1068 | begin |
||
1069 | result := rel / 100; |
||
1070 | end |
||
1071 | else if NewCapacityAbsolute(abs) then |
||
1072 | begin |
||
1073 | result := abs / DiskSize; |
||
1074 | end |
||
1075 | else |
||
1076 | begin |
||
1077 | result := DEFAULT_PERCENT / 100; |
||
1078 | end; |
||
1079 | end; |
||
1080 | |||
1081 | function TRbDrive.GetMaxAbsoluteUsage: integer; |
||
1082 | var |
||
1083 | abs: integer; // in MB |
||
1084 | rel: integer; // in % (0-100) |
||
1085 | gpSetting: integer; |
||
1086 | const |
||
1087 | DEFAULT_PERCENT = 10; // Windows 95 default |
||
1088 | begin |
||
1089 | gpSetting := TRecycleBinManager.RecyclerGroupPolicyRecycleBinSize; |
||
1090 | if gpSetting <> -1 then |
||
1091 | result := Ceil(gpSetting/100 * DiskSize) |
||
1092 | else if TRecycleBinManager.UsesGlobalSettings then |
||
1093 | result := Ceil(TRecycleBinManager.GetGlobalMaxPercentUsage/100 * DiskSize) |
||
1094 | else if NewCapacityAbsolute(abs) then |
||
1095 | begin |
||
1096 | result := abs; |
||
1097 | end |
||
1098 | else if OldCapacityPercent(rel) then |
||
1099 | begin |
||
1100 | result := Ceil(rel/100 * DiskSize); |
||
1101 | end |
||
1102 | else |
||
1103 | begin |
||
1104 | result := Ceil(DEFAULT_PERCENT/100 * DiskSize); |
||
1105 | end; |
||
1106 | end; |
||
1107 | |||
1108 | function TRbDrive.OldCapacityPercent(var res: integer): boolean; |
||
1109 | var |
||
75 | daniel-mar | 1110 | reg: TRegistry; |
1111 | purgeInfo: TRbWin95PurgeInfo; |
||
1112 | begin |
||
78 | daniel-mar | 1113 | if Win32MajorVersion >= 6 then |
1114 | begin |
||
1115 | // Only available till Windows XP |
||
1116 | result := false; |
||
1117 | exit; |
||
1118 | end; |
||
75 | daniel-mar | 1119 | |
78 | daniel-mar | 1120 | result := false; |
1121 | |||
75 | daniel-mar | 1122 | reg := TRegistry.Create; |
1123 | try |
||
1124 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
1125 | |||
1126 | // Im Auslieferungszustand von Windows 95 ist dieser Schlüssel nicht vorhanden. |
||
1127 | // Er wird bei der ersten Änderung der Papierkorb-Einstellungen erstellt. |
||
1128 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
1129 | begin |
||
89 | daniel-mar | 1130 | if reg.OpenKeyReadOnly(string(FDriveLetter)) then |
75 | daniel-mar | 1131 | begin |
1132 | if reg.ValueExists('Percent') then |
||
1133 | begin |
||
1134 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
1135 | |||
78 | daniel-mar | 1136 | res := reg.ReadInteger('Percent'); |
1137 | result := true; |
||
75 | daniel-mar | 1138 | end; |
1139 | end |
||
1140 | else |
||
1141 | begin |
||
1142 | if reg.ValueExists('PurgeInfo') then |
||
1143 | begin |
||
1144 | // Windows 95 - Kodierte Informationen liegen in PurgeInfo |
||
1145 | |||
1146 | reg.ReadBinaryData('PurgeInfo', purgeInfo, SizeOf(purgeInfo)); |
||
1147 | |||
78 | daniel-mar | 1148 | res := purgeInfo.percentDrive[FDriveLetter]; |
1149 | result := true; |
||
75 | daniel-mar | 1150 | end; |
1151 | end; |
||
1152 | |||
1153 | reg.CloseKey; |
||
1154 | end; |
||
1155 | finally |
||
1156 | reg.Free; |
||
1157 | end; |
||
1158 | end; |
||
1159 | |||
78 | daniel-mar | 1160 | function TRbDrive.NewCapacityAbsolute(var res: integer): boolean; |
75 | daniel-mar | 1161 | var |
78 | daniel-mar | 1162 | reg: TRegistry; |
75 | daniel-mar | 1163 | begin |
78 | daniel-mar | 1164 | if Win32MajorVersion < 6 then |
1165 | begin |
||
1166 | // Only available since Windows Vista |
||
1167 | result := false; |
||
1168 | exit; |
||
1169 | end; |
||
75 | daniel-mar | 1170 | |
78 | daniel-mar | 1171 | result := false; |
1172 | |||
1173 | reg := TRegistry.Create; |
||
1174 | try |
||
1175 | reg.RootKey := HKEY_CURRENT_USER; |
||
1176 | |||
1177 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket\Volume') then |
||
1178 | begin |
||
1179 | // Windows Vista and upwards |
||
1180 | if reg.OpenKeyReadOnly(GUIDToString(VolumeGUID)) then |
||
1181 | begin |
||
1182 | res := reg.ReadInteger('MaxCapacity'); // in MB |
||
1183 | result := true; |
||
1184 | end; |
||
1185 | reg.CloseKey; |
||
1186 | end; |
||
1187 | finally |
||
1188 | reg.Free; |
||
1189 | end; |
||
75 | daniel-mar | 1190 | end; |
1191 | |||
1192 | function TRbDrive.GetNukeOnDelete: boolean; |
||
1193 | var |
||
1194 | reg: TRegistry; |
||
1195 | purgeInfo: TRbWin95PurgeInfo; |
||
1196 | const |
||
78 | daniel-mar | 1197 | RES_DEFAULT = false; // Windows 95 default |
75 | daniel-mar | 1198 | begin |
78 | daniel-mar | 1199 | if TRecycleBinManager.RecyclerGroupPolicyNoRecycleFiles = gpEnabled then |
1200 | result := true |
||
1201 | else if TRecycleBinManager.UsesGlobalSettings then |
||
1202 | result := TRecycleBinManager.GetGlobalNukeOnDelete |
||
1203 | else |
||
1204 | begin |
||
1205 | result := RES_DEFAULT; |
||
75 | daniel-mar | 1206 | |
78 | daniel-mar | 1207 | reg := TRegistry.Create; |
1208 | try |
||
1209 | reg.RootKey := HKEY_CURRENT_USER; |
||
75 | daniel-mar | 1210 | |
78 | daniel-mar | 1211 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Explorer\BitBucket\Volume') then |
75 | daniel-mar | 1212 | begin |
78 | daniel-mar | 1213 | // Windows Vista and upwards |
1214 | if reg.OpenKeyReadOnly(GUIDToString(VolumeGUID)) then |
||
75 | daniel-mar | 1215 | begin |
1216 | result := reg.ReadBool('NukeOnDelete'); |
||
1217 | end; |
||
78 | daniel-mar | 1218 | reg.CloseKey; |
75 | daniel-mar | 1219 | end |
1220 | else |
||
1221 | begin |
||
78 | daniel-mar | 1222 | reg.RootKey := HKEY_LOCAL_MACHINE; |
1223 | |||
1224 | // Im Auslieferungszustand von Windows 95 ist dieser Schlüssel nicht vorhanden. |
||
1225 | // Er wird bei der ersten Änderung der Papierkorb-Einstellungen erstellt. |
||
1226 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
75 | daniel-mar | 1227 | begin |
89 | daniel-mar | 1228 | if reg.OpenKeyReadOnly(string(FDriveLetter)) then |
78 | daniel-mar | 1229 | begin |
1230 | if reg.ValueExists('NukeOnDelete') then |
||
1231 | begin |
||
1232 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
75 | daniel-mar | 1233 | |
78 | daniel-mar | 1234 | result := reg.ReadBool('NukeOnDelete'); |
1235 | end; |
||
1236 | end |
||
1237 | else |
||
1238 | begin |
||
1239 | if reg.ValueExists('PurgeInfo') then |
||
1240 | begin |
||
1241 | // Windows 95 - Kodierte Informationen liegen in PurgeInfo |
||
75 | daniel-mar | 1242 | |
78 | daniel-mar | 1243 | reg.ReadBinaryData('PurgeInfo', purgeInfo, SizeOf(purgeInfo)); |
1244 | |||
1245 | result := ((purgeInfo.NukeOnDeleteBits shr DriveNumber) and 1) = 1; |
||
1246 | end; |
||
1247 | end; |
||
1248 | |||
1249 | reg.CloseKey; |
||
75 | daniel-mar | 1250 | end; |
1251 | end; |
||
78 | daniel-mar | 1252 | finally |
1253 | reg.Free; |
||
75 | daniel-mar | 1254 | end; |
1255 | end; |
||
1256 | end; |
||
1257 | |||
1258 | function TRbDrive.GetNumItems: int64; |
||
1259 | begin |
||
1260 | result := GetAPIInfo.i64NumItems; |
||
1261 | end; |
||
1262 | |||
1263 | function TRbDrive.GetSize: int64; |
||
1264 | begin |
||
1265 | result := GetAPIInfo.i64Size; |
||
1266 | end; |
||
1267 | |||
1268 | function TRbDrive.GetVolumeGUID: TGUID; |
||
1269 | begin |
||
1270 | if GetDriveGUID(FDriveLetter, result) <> ERROR_SUCCESS then |
||
1271 | begin |
||
1272 | result := NULL_GUID; |
||
1273 | end; |
||
1274 | end; |
||
1275 | |||
77 | daniel-mar | 1276 | function TRbDrive.GetVolumeGUIDAvailable: boolean; |
1277 | begin |
||
1278 | result := not IsEqualGUID(VolumeGUID, NULL_GUID); |
||
1279 | end; |
||
1280 | |||
75 | daniel-mar | 1281 | function TRbDrive.IsEmpty: boolean; |
1282 | begin |
||
1283 | result := GetNumItems = 0; |
||
1284 | end; |
||
1285 | |||
1286 | function TRbDrive.IsFAT: boolean; |
||
1287 | var |
||
1288 | Dummy2: DWORD; |
||
1289 | Dummy3: DWORD; |
||
1290 | FileSystem: array[0..MAX_PATH] of char; |
||
1291 | VolumeName: array[0..MAX_PATH] of char; |
||
1292 | s: string; |
||
1293 | begin |
||
1294 | s := FDriveLetter + DriveDelim + PathDelim; // ohne die Auslagerung in einen String kommt es zu einer AV in ntdll |
||
1295 | GetVolumeInformation(PChar(s), VolumeName, |
||
1296 | SizeOf(VolumeName), nil, Dummy2, Dummy3, FileSystem, SizeOf(FileSystem)); |
||
1297 | result := uppercase(copy(FileSystem, 0, 3)) = 'FAT'; |
||
1298 | end; |
||
1299 | |||
1300 | procedure TRbDrive.ListRecycleBins(list: TObjectList{TRbRecycleBin}; UserSID: string=''); |
||
1301 | |||
1302 | procedure _AddSIDFolders(dir: string; wholeFolder: boolean); |
||
1303 | var |
||
1304 | SR: TSearchRec; |
||
1305 | begin |
||
1306 | dir := IncludeTrailingPathDelimiter(dir); |
||
1307 | if FindFirst(dir+'S-*', faAnyFile, SR) = 0 then |
||
1308 | begin |
||
1309 | try |
||
1310 | repeat |
||
1311 | if (SR.Name = '.') or (SR.Name = '..') or not DirectoryExists(dir + SR.Name) then continue; |
||
1312 | |||
1313 | if wholeFolder then |
||
1314 | begin |
||
1315 | // Vista |
||
1316 | list.Add(TRbRecycleBin.Create(dir+SR.Name, SR.Name)); |
||
1317 | end |
||
1318 | else |
||
1319 | begin |
||
1320 | // Win95 .. WinXP |
||
1321 | if FileExists(IncludeTrailingPathDelimiter(dir+SR.Name) + 'INFO2') then |
||
1322 | list.Add(TRbRecycleBin.Create(IncludeTrailingPathDelimiter(dir+SR.Name) + 'INFO2', SR.Name)); |
||
1323 | if FileExists(IncludeTrailingPathDelimiter(dir+SR.Name) + 'INFO') then |
||
1324 | list.Add(TRbRecycleBin.Create(IncludeTrailingPathDelimiter(dir+SR.Name) + 'INFO', SR.Name)); |
||
1325 | end; |
||
1326 | until FindNext(SR) <> 0; |
||
1327 | finally |
||
1328 | FindClose(SR); |
||
1329 | end; |
||
1330 | end; |
||
1331 | end; |
||
1332 | |||
1333 | var |
||
1334 | dir: string; |
||
1335 | begin |
||
1336 | // Find recyclers from Windows Vista or higher |
||
1337 | |||
1338 | if IsFAT then |
||
1339 | begin |
||
1340 | dir := FDriveLetter + DriveDelim + PathDelim + '$recycle.bin' + PathDelim; |
||
1341 | if DirectoryExists(dir) then |
||
1342 | begin |
||
1343 | list.Add(TRbRecycleBin.Create(dir)); |
||
1344 | end; |
||
1345 | end |
||
1346 | else |
||
1347 | begin |
||
1348 | if UserSID <> '' then |
||
1349 | begin |
||
1350 | dir := FDriveLetter + DriveDelim + PathDelim + '$recycle.bin' + PathDelim + UserSID + PathDelim; |
||
1351 | if DirectoryExists(dir) then |
||
1352 | begin |
||
1353 | list.Add(TRbRecycleBin.Create(dir, UserSID)); |
||
1354 | end; |
||
1355 | end |
||
1356 | else |
||
1357 | begin |
||
1358 | _AddSIDFolders(FDriveLetter + DriveDelim + PathDelim + '$recycle.bin', true); |
||
1359 | end; |
||
1360 | end; |
||
1361 | |||
1362 | // Find recyclers from Windows before Vista |
||
1363 | |||
1364 | if IsFAT then |
||
1365 | begin |
||
1366 | dir := FDriveLetter + DriveDelim + PathDelim + 'Recycled' + PathDelim; |
||
1367 | |||
1368 | // Both "recycle bins" are possible if you have multiboot (but do overwrite themselfes if you empty them) |
||
1369 | if FileExists(dir + 'INFO2') then |
||
76 | daniel-mar | 1370 | list.Add(TRbRecycleBin.Create(dir + 'INFO2')); // Windows 95 with Internet Explorer 4 Extension or higher Windows 9x versions |
75 | daniel-mar | 1371 | if FileExists(dir + 'INFO') then |
1372 | list.Add(TRbRecycleBin.Create(dir + 'INFO')); // Windows 95 native |
||
1373 | end |
||
1374 | else |
||
1375 | begin |
||
1376 | if UserSID <> '' then |
||
1377 | begin |
||
1378 | dir := FDriveLetter + DriveDelim + PathDelim + 'Recycler' + PathDelim + UserSID + PathDelim; |
||
1379 | |||
1380 | if FileExists(dir + 'INFO2') then |
||
76 | daniel-mar | 1381 | list.Add(TRbRecycleBin.Create(dir + 'INFO2', UserSID)); // Windows 2000+ |
75 | daniel-mar | 1382 | if FileExists(dir + 'INFO') then |
1383 | list.Add(TRbRecycleBin.Create(dir + 'INFO', UserSID)); // Windows NT 4 |
||
1384 | end |
||
1385 | else |
||
1386 | begin |
||
1387 | _AddSIDFolders(FDriveLetter + DriveDelim + PathDelim + 'Recycler', false); |
||
1388 | end; |
||
1389 | end; |
||
1390 | end; |
||
1391 | |||
76 | daniel-mar | 1392 | { TRbInfoAItem } |
75 | daniel-mar | 1393 | |
76 | daniel-mar | 1394 | procedure TRbInfoAItem.ReadFromStream(stream: TStream); |
75 | daniel-mar | 1395 | var |
76 | daniel-mar | 1396 | r: TRbInfoRecordA; |
75 | daniel-mar | 1397 | begin |
1398 | stream.ReadBuffer(r, SizeOf(r)); |
||
1399 | |||
1400 | FSourceDrive := Chr(Ord('A') + r.sourceDrive); |
||
1401 | |||
76 | daniel-mar | 1402 | // Win95 with IE4 and Win2000+: |
1403 | // Wenn ein Eintrag aus der INFO/INFO2 gelöscht wird, dann wird das erste Byte |
||
1404 | // von sourceAnsi auf Null gesetzt, damit die ganze INFO/INFO2 Datei nicht |
||
1405 | // ständig neu geschrieben werden muss (so wie es bei Win95 und WinNT4 der Fall war). |
||
1406 | // Wir lesen den Eintrag trotzdem, da unsere Software ja auch zu forensischen |
||
1407 | // Zwecken eingesetzt werden soll. |
||
75 | daniel-mar | 1408 | if r.sourceAnsi[0] = #0 then |
1409 | begin |
||
1410 | FRemovedEntry := true; |
||
89 | daniel-mar | 1411 | r.sourceAnsi[0] := AnsiChar(FSourceDrive); |
75 | daniel-mar | 1412 | end; |
1413 | |||
1414 | FSourceAnsi := r.sourceAnsi; |
||
90 | daniel-mar | 1415 | FSourceUnicode := AnsiCharArrayToWideString(r.sourceAnsi); // Unicode does not exist in INFO(1) structure |
75 | daniel-mar | 1416 | FID := IntToStr(r.recordNumber); |
1417 | FDeletionTime := FileTimeToDateTime(r.deletionTime); |
||
1418 | FOriginalSize := r.originalSize; |
||
88 | daniel-mar | 1419 | |
1420 | // Remove #0 at the end. There are some bugs where #0 is added to ANSI/Unicode read paths?! (probably in the ReadVista stuff) |
||
1421 | // TODO: Instead of using this workaround, fix "SourceUnicode" and "SourceAnsi" in the first place! |
||
1422 | AnsiRemoveNulChars(FSourceAnsi); |
||
1423 | UnicodeRemoveNulChars(FSourceUnicode); |
||
75 | daniel-mar | 1424 | end; |
1425 | |||
76 | daniel-mar | 1426 | function TRbInfoAItem.DeleteFile: boolean; |
75 | daniel-mar | 1427 | var |
1428 | r: string; |
||
1429 | begin |
||
1430 | r := GetPhysicalFile; |
||
1431 | if DirectoryExists(r) then |
||
1432 | result := DeleteDirectory(r) // Usually, the old recycle bin does not allow folders. Just to be sure, we include the code. |
||
1433 | else |
||
1434 | result := SysUtils.DeleteFile(r); // TODO: geht das oder gibt es zugriffsverletzung? --> Win95: Funktioniert |
||
1435 | |||
1436 | // TODO: nun auch den eintrag aus der INFO-Datei rausschmeißen (Datei neu schreiben) |
||
1437 | end; |
||
1438 | |||
76 | daniel-mar | 1439 | function TRbInfoAItem.GetPhysicalFile: string; |
75 | daniel-mar | 1440 | begin |
1441 | if FRemovedEntry then |
||
1442 | begin |
||
1443 | result := ''; |
||
1444 | Exit; |
||
1445 | end; |
||
1446 | |||
1447 | // e.g. C:\...\DC0.doc |
||
1448 | result := IncludeTrailingPathDelimiter(ExtractFilePath(IndexFile)) + |
||
89 | daniel-mar | 1449 | 'D' + (* SourceDrive *) Source[1] + ID + ExtractFileExt(Source); |
75 | daniel-mar | 1450 | end; |
1451 | |||
76 | daniel-mar | 1452 | constructor TRbInfoAItem.Create(fs: TStream; AIndexFile: string); |
75 | daniel-mar | 1453 | begin |
1454 | inherited Create; |
||
1455 | ReadFromStream(fs); |
||
1456 | FIndexFile := AIndexFile; |
||
1457 | end; |
||
1458 | |||
76 | daniel-mar | 1459 | { TRbInfoWItem } |
75 | daniel-mar | 1460 | |
76 | daniel-mar | 1461 | procedure TRbInfoWItem.ReadFromStream(stream: TStream); |
75 | daniel-mar | 1462 | var |
76 | daniel-mar | 1463 | r: TRbInfoRecordW; |
75 | daniel-mar | 1464 | begin |
1465 | stream.ReadBuffer(r, SizeOf(r)); |
||
1466 | |||
76 | daniel-mar | 1467 | // Win95 with IE4 and Win2000+: |
1468 | // Wenn ein Eintrag aus der INFO/INFO2 gelöscht wird, dann wird das erste Byte |
||
1469 | // von sourceAnsi auf Null gesetzt, damit die ganze INFO/INFO2 Datei nicht |
||
1470 | // ständig neu geschrieben werden muss (so wie es bei Win95 und WinNT4 der Fall war). |
||
75 | daniel-mar | 1471 | // Wir lesen den Eintrag trotzdem, da unsere Software ja auch zu forensischen |
1472 | // Zwecken eingesetzt werden soll. |
||
1473 | if r.sourceAnsi[0] = #0 then |
||
1474 | begin |
||
1475 | FRemovedEntry := true; |
||
1476 | r.sourceAnsi[0] := AnsiChar(r.sourceUnicode[0]); |
||
1477 | end; |
||
1478 | |||
1479 | FSourceAnsi := r.sourceAnsi; |
||
1480 | FSourceUnicode := r.sourceUnicode; |
||
1481 | FID := IntToStr(r.recordNumber); |
||
1482 | FSourceDrive := Chr(Ord('A') + r.sourceDrive); |
||
1483 | FDeletionTime := FileTimeToDateTime(r.deletionTime); |
||
1484 | FOriginalSize := r.originalSize; |
||
88 | daniel-mar | 1485 | |
1486 | // Remove #0 at the end. There are some bugs where #0 is added to ANSI/Unicode read paths?! (probably in the ReadVista stuff) |
||
1487 | // TODO: Instead of using this workaround, fix "SourceUnicode" and "SourceAnsi" in the first place! |
||
1488 | AnsiRemoveNulChars(FSourceAnsi); |
||
1489 | UnicodeRemoveNulChars(FSourceUnicode); |
||
75 | daniel-mar | 1490 | end; |
1491 | |||
76 | daniel-mar | 1492 | function TRbInfoWItem.DeleteFile: boolean; |
75 | daniel-mar | 1493 | var |
1494 | r: string; |
||
1495 | begin |
||
1496 | r := GetPhysicalFile; |
||
1497 | if DirectoryExists(r) then |
||
1498 | result := DeleteDirectory(r) |
||
1499 | else |
||
1500 | result := SysUtils.DeleteFile(r); // TODO: geht das oder gibt es zugriffsverletzung? |
||
1501 | |||
1502 | // TODO: nun auch den eintrag aus der INFO-Datei rausschmeißen (Erstes Byte auf 0 setzen) |
||
1503 | end; |
||
1504 | |||
76 | daniel-mar | 1505 | function TRbInfoWItem.GetPhysicalFile: string; |
75 | daniel-mar | 1506 | begin |
1507 | if FRemovedEntry then |
||
1508 | begin |
||
1509 | result := ''; |
||
1510 | Exit; |
||
1511 | end; |
||
1512 | |||
76 | daniel-mar | 1513 | (* |
1514 | This is actually a bit tricky... |
||
1515 | Win95 will choose the first letter of the AnsiSource name. |
||
1516 | WinNT will choose the first letter of the UnicodeSource name. |
||
1517 | WinXP will choose the driveNumber member. |
||
1518 | |||
1519 | Windows XP is kinda buggy when it comes to changing a drive letter. |
||
1520 | For example, the drive E: was changed to K: |
||
1521 | The drive letter is 04 (E), the Source name begins with E:\ and the physical file is De0.txt . |
||
1522 | After the recycle bin is opened the first time: |
||
1523 | - The recycle bin will show the file origin as K:\ and not as E:\ |
||
1524 | - The file was renamed from De0.txt to Dk0.txt |
||
1525 | - The file can be recovered at this time |
||
1526 | When the recycle bin is closed, the INFO2 file will not be corrected (which is a bug). |
||
1527 | So, if you open the recycle bin again, the record will be marked |
||
1528 | as deleted in the INFO file (the first byte will be set to 0), |
||
1529 | because Windows searches for De0.txt and doesn't find it. |
||
1530 | |||
1531 | (This comment also applies to TRbInfoAItem.GetPhysicalFile) |
||
1532 | *) |
||
1533 | |||
75 | daniel-mar | 1534 | // e.g. C:\...\DC0.doc |
1535 | result := IncludeTrailingPathDelimiter(ExtractFilePath(IndexFile)) + |
||
76 | daniel-mar | 1536 | 'D' + SourceDrive (* SourceUnicode[1] *) + ID + ExtractFileExt(SourceUnicode); |
75 | daniel-mar | 1537 | end; |
1538 | |||
76 | daniel-mar | 1539 | constructor TRbInfoWItem.Create(fs: TStream; AIndexFile: string); |
75 | daniel-mar | 1540 | begin |
1541 | inherited Create; |
||
1542 | ReadFromStream(fs); |
||
1543 | FIndexFile := AIndexFile; |
||
1544 | end; |
||
1545 | |||
1546 | { TRbVistaItem } |
||
1547 | |||
1548 | procedure TRbVistaItem.ReadFromStream(stream: TStream); |
||
1549 | var |
||
82 | daniel-mar | 1550 | r1: TRbVistaRecord1; |
1551 | r2: TRbVistaRecord2Head; |
||
1552 | r2SourceUnicode: array of WideChar; |
||
1553 | version: DWORD; |
||
75 | daniel-mar | 1554 | begin |
82 | daniel-mar | 1555 | stream.ReadBuffer(version, SizeOf(version)); |
75 | daniel-mar | 1556 | |
82 | daniel-mar | 1557 | if version = 1 then |
1558 | begin |
||
1559 | stream.Seek(0, soBeginning); |
||
1560 | stream.ReadBuffer(r1, SizeOf(r1)); |
||
90 | daniel-mar | 1561 | FSourceAnsi := AnsiString(WideCharArrayToWideString(r1.sourceUnicode)); // Invalid chars are automatically converted into '?' |
1562 | FSourceUnicode := WideCharArrayToWideString(r1.sourceUnicode); |
||
82 | daniel-mar | 1563 | FID := ''; // will be added manually (at the constructor) |
89 | daniel-mar | 1564 | FSourceDrive := r1.sourceUnicode[1]; |
82 | daniel-mar | 1565 | FDeletionTime := FileTimeToDateTime(r1.deletionTime); |
1566 | FOriginalSize := r1.originalSize; |
||
1567 | end |
||
1568 | else if version = 2 then |
||
1569 | begin |
||
1570 | stream.Seek(0, soBeginning); |
||
1571 | stream.ReadBuffer(r2, SizeOf(r2)); |
||
1572 | |||
90 | daniel-mar | 1573 | SetLength(r2SourceUnicode, SizeOf(WideChar)*(r2.SourceCountChars-1)); |
1574 | stream.Read(r2SourceUnicode[0], SizeOf(WideChar)*(r2.sourceCountChars-1)); |
||
82 | daniel-mar | 1575 | |
90 | daniel-mar | 1576 | FSourceAnsi := AnsiString(WideCharArrayToWideString(r2sourceUnicode)); // Invalid chars are automatically converted into '?' |
1577 | FSourceUnicode := WideCharArrayToWideString(r2sourceUnicode); |
||
82 | daniel-mar | 1578 | FID := ''; // will be added manually (at the constructor) |
89 | daniel-mar | 1579 | FSourceDrive := r2sourceUnicode[1]; |
82 | daniel-mar | 1580 | FDeletionTime := FileTimeToDateTime(r2.deletionTime); |
1581 | FOriginalSize := r2.originalSize; |
||
1582 | end |
||
1583 | else |
||
1584 | begin |
||
1585 | raise Exception.CreateFmt('Invalid Vista index format version %d', [version]); |
||
1586 | end; |
||
88 | daniel-mar | 1587 | |
1588 | // Remove #0 at the end. There are some bugs where #0 is added to ANSI/Unicode read paths?! (probably in the ReadVista stuff) |
||
1589 | // TODO: Instead of using this workaround, fix "SourceUnicode" and "SourceAnsi" in the first place! |
||
1590 | AnsiRemoveNulChars(FSourceAnsi); |
||
1591 | UnicodeRemoveNulChars(FSourceUnicode); |
||
75 | daniel-mar | 1592 | end; |
1593 | |||
1594 | function TRbVistaItem.DeleteFile: boolean; |
||
1595 | var |
||
1596 | r: string; |
||
1597 | begin |
||
1598 | r := GetPhysicalFile; |
||
1599 | if DirectoryExists(r) then |
||
1600 | result := DeleteDirectory(r) |
||
1601 | else |
||
1602 | result := SysUtils.DeleteFile(r); |
||
1603 | |||
1604 | SysUtils.DeleteFile(FIndexFile); |
||
1605 | end; |
||
1606 | |||
1607 | function TRbVistaItem.GetPhysicalFile: string; |
||
1608 | begin |
||
1609 | result := FIndexFile; |
||
1610 | result := StringReplace(Result, '$I', '$R', [rfIgnoreCase]); |
||
1611 | end; |
||
1612 | |||
1613 | constructor TRbVistaItem.Create(fs: TStream; AIndexFile, AID: string); |
||
1614 | begin |
||
1615 | inherited Create; |
||
1616 | ReadFromStream(fs); |
||
1617 | FIndexFile := AIndexFile; |
||
1618 | FID := AID; |
||
1619 | end; |
||
1620 | |||
1621 | { TRecycleBinManager } |
||
1622 | |||
1623 | class function TRecycleBinManager.EmptyOwnRecyclers(flags: cardinal): boolean; |
||
1624 | var |
||
1625 | PSHEmptyRecycleBin: TSHEmptyRecycleBin; |
||
1626 | LibHandle: THandle; |
||
1627 | begin |
||
1628 | // Source: http://www.dsdt.info/tipps/?id=176 |
||
1629 | result := true; |
||
1630 | LibHandle := LoadLibrary(shell32); |
||
1631 | try |
||
1632 | if LibHandle <> 0 then |
||
1633 | begin |
||
93 | daniel-mar | 1634 | @PSHEmptyRecycleBin := GetProcAddress(LibHandle, C_SHEmptyRecycleBin); |
75 | daniel-mar | 1635 | if @PSHEmptyRecycleBin <> nil then |
1636 | begin |
||
1637 | PSHEmptyRecycleBin(hInstance, nil, flags); |
||
1638 | end |
||
1639 | else |
||
1640 | result := false; |
||
1641 | end |
||
1642 | else |
||
1643 | result := false; |
||
1644 | finally |
||
1645 | @PSHEmptyRecycleBin := nil; |
||
1646 | if LibHandle <> 0 then FreeLibrary(LibHandle); |
||
1647 | end; |
||
1648 | end; |
||
1649 | |||
1650 | class function TRecycleBinManager.EmptyOwnRecyclers(sound, progress, confirmation: boolean): boolean; |
||
1651 | const |
||
1652 | SHERB_NOCONFIRMATION = $00000001; |
||
1653 | SHERB_NOPROGRESSUI = $00000002; |
||
1654 | SHERB_NOSOUND = $00000004; |
||
1655 | var |
||
1656 | flags: cardinal; |
||
1657 | begin |
||
1658 | flags := 0; |
||
1659 | |||
1660 | if not progress then |
||
1661 | flags := flags or SHERB_NOPROGRESSUI; |
||
1662 | if not confirmation then |
||
1663 | flags := flags or SHERB_NOCONFIRMATION; |
||
1664 | if not sound then |
||
1665 | flags := flags or SHERB_NOSOUND; |
||
1666 | |||
1667 | result := EmptyOwnRecyclers(flags); |
||
1668 | end; |
||
1669 | |||
1670 | class function TRecycleBinManager.GetGlobalMaxPercentUsage: integer; |
||
1671 | var |
||
1672 | reg: TRegistry; |
||
1673 | purgeInfo: TRbWin95PurgeInfo; |
||
1674 | const |
||
1675 | RES_DEFAULT = 10; // Windows 95 - Standardwert |
||
1676 | begin |
||
78 | daniel-mar | 1677 | if Win32MajorVersion >= 6 then |
1678 | begin |
||
1679 | // Only available till Windows XP |
||
1680 | result := -1; |
||
1681 | exit; |
||
1682 | end; |
||
1683 | |||
75 | daniel-mar | 1684 | result := RES_DEFAULT; |
1685 | |||
1686 | reg := TRegistry.Create; |
||
1687 | try |
||
1688 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
1689 | |||
1690 | // Im Auslieferungszustand von Windows 95 ist dieser Schlüssel nicht vorhanden. |
||
1691 | // Er wird bei der ersten Änderung der Papierkorb-Einstellungen erstellt. |
||
1692 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
1693 | begin |
||
1694 | if reg.ValueExists('Percent') then |
||
1695 | begin |
||
1696 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
1697 | |||
1698 | result := reg.ReadInteger('Percent'); |
||
1699 | end |
||
1700 | else if reg.ValueExists('PurgeInfo') then |
||
1701 | begin |
||
1702 | // Windows 95 - Kodierte Informationen liegen in PurgeInfo |
||
1703 | |||
1704 | reg.ReadBinaryData('PurgeInfo', purgeInfo, SizeOf(purgeInfo)); |
||
1705 | result := purgeInfo.percentGlobal; |
||
1706 | end; |
||
1707 | |||
1708 | reg.CloseKey; |
||
1709 | end; |
||
1710 | finally |
||
1711 | reg.Free; |
||
1712 | end; |
||
1713 | end; |
||
1714 | |||
1715 | class function TRecycleBinManager.GetGlobalNukeOnDelete: boolean; |
||
1716 | var |
||
1717 | reg: TRegistry; |
||
1718 | purgeInfo: TRbWin95PurgeInfo; |
||
1719 | const |
||
1720 | RES_DEFAULT = false; // Windows 95 - Standardwert |
||
1721 | begin |
||
78 | daniel-mar | 1722 | if Win32MajorVersion >= 6 then |
1723 | begin |
||
1724 | // Only available till Windows XP |
||
1725 | result := false; |
||
1726 | exit; |
||
1727 | end; |
||
1728 | |||
75 | daniel-mar | 1729 | result := RES_DEFAULT; |
1730 | |||
1731 | reg := TRegistry.Create; |
||
1732 | try |
||
1733 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
1734 | |||
1735 | // Im Auslieferungszustand von Windows 95 ist dieser Schlüssel nicht vorhanden. |
||
1736 | // Er wird bei der ersten Änderung der Papierkorb-Einstellungen erstellt. |
||
1737 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
1738 | begin |
||
1739 | if reg.ValueExists('NukeOnDelete') then |
||
1740 | begin |
||
1741 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
1742 | |||
1743 | result := reg.ReadBool('NukeOnDelete'); |
||
1744 | end |
||
1745 | else if reg.ValueExists('PurgeInfo') then |
||
1746 | begin |
||
1747 | // Windows 95 - Kodierte Informationen liegen in PurgeInfo |
||
1748 | |||
1749 | reg.ReadBinaryData('PurgeInfo', purgeInfo, SizeOf(purgeInfo)); |
||
1750 | result := (purgeInfo.NukeOnDeleteBits and $8000000) = $8000000; // bit 27 |
||
1751 | end; |
||
1752 | |||
1753 | reg.CloseKey; |
||
1754 | end; |
||
1755 | finally |
||
1756 | reg.Free; |
||
1757 | end; |
||
1758 | end; |
||
1759 | |||
76 | daniel-mar | 1760 | (* TODO: |
1761 | There are more registry values (found in WinXP): |
||
1762 | |||
1763 | BitBucket\<driveletter> |
||
1764 | VolumeSerialNumber |
||
1765 | IsUnicode |
||
1766 | |||
1767 | *) |
||
1768 | |||
75 | daniel-mar | 1769 | class function TRecycleBinManager.UsesGlobalSettings: boolean; |
1770 | var |
||
1771 | reg: TRegistry; |
||
1772 | purgeInfo: TRbWin95PurgeInfo; |
||
1773 | const |
||
1774 | RES_DEFAULT = true; // Windows 95 - Standardwert |
||
1775 | begin |
||
78 | daniel-mar | 1776 | if Win32MajorVersion >= 6 then |
1777 | begin |
||
1778 | // Only available till Windows XP |
||
1779 | result := false; |
||
1780 | exit; |
||
1781 | end; |
||
1782 | |||
75 | daniel-mar | 1783 | result := RES_DEFAULT; |
1784 | |||
1785 | reg := TRegistry.Create; |
||
1786 | try |
||
1787 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
1788 | |||
1789 | // Im Auslieferungszustand von Windows 95 ist dieser Schlüssel nicht vorhanden. |
||
1790 | // Er wird bei der ersten Änderung der Papierkorb-Einstellungen erstellt. |
||
1791 | if reg.OpenKeyReadOnly('SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket') then |
||
1792 | begin |
||
1793 | if reg.ValueExists('UseGlobalSettings') then |
||
1794 | begin |
||
1795 | // Windows 2000 - Informationen liegen aufgeschlüsselt in der Registry |
||
1796 | |||
1797 | result := reg.ReadBool('UseGlobalSettings'); |
||
1798 | end |
||
1799 | else if reg.ValueExists('PurgeInfo') then |
||
1800 | begin |
||
1801 | // Windows 95 - Kodierte Informationen liegen in PurgeInfo |
||
1802 | |||
1803 | reg.ReadBinaryData('PurgeInfo', purgeInfo, SizeOf(purgeInfo)); |
||
1804 | result := purgeInfo.bGlobalSettings; |
||
1805 | end; |
||
1806 | |||
1807 | reg.CloseKey; |
||
1808 | end; |
||
1809 | finally |
||
1810 | reg.Free; |
||
1811 | end; |
||
1812 | end; |
||
1813 | |||
1814 | class procedure TRecycleBinManager.ListDrives(list: TObjectList{TRbDrive}); |
||
1815 | var |
||
89 | daniel-mar | 1816 | drive: AnsiChar; |
75 | daniel-mar | 1817 | begin |
1818 | for drive := 'A' to 'Z' do |
||
1819 | if RecycleBinPossible(drive) then |
||
1820 | list.Add(TRbDrive.Create(drive)); |
||
1821 | end; |
||
1822 | |||
1823 | class function TRecycleBinManager.OwnRecyclersEmpty: boolean; |
||
1824 | var |
||
1825 | drives: TObjectList; |
||
1826 | i: integer; |
||
1827 | begin |
||
1828 | result := true; |
||
1829 | |||
1830 | drives := TObjectList.Create(true); |
||
1831 | try |
||
1832 | ListDrives(drives); |
||
1833 | for i := 0 to drives.Count - 1 do |
||
1834 | begin |
||
1835 | result := result and TRbDrive(drives.Items[i]).IsEmpty; |
||
1836 | if not result then break; |
||
1837 | end; |
||
1838 | finally |
||
1839 | drives.Free; |
||
1840 | end; |
||
1841 | end; |
||
1842 | |||
1843 | class function TRecycleBinManager.OwnRecyclersNumItems: int64; |
||
1844 | var |
||
1845 | drives: TObjectList; |
||
1846 | i: integer; |
||
1847 | begin |
||
1848 | result := 0; |
||
1849 | |||
1850 | drives := TObjectList.Create(true); |
||
1851 | try |
||
1852 | ListDrives(drives); |
||
1853 | for i := 0 to drives.Count - 1 do |
||
1854 | begin |
||
1855 | result := result + TRbDrive(drives.Items[i]).GetNumItems; |
||
1856 | end; |
||
1857 | finally |
||
1858 | drives.Free; |
||
1859 | end; |
||
1860 | end; |
||
1861 | |||
1862 | class function TRecycleBinManager.OwnRecyclersSize: int64; |
||
1863 | var |
||
1864 | drives: TObjectList; |
||
1865 | i: integer; |
||
1866 | begin |
||
1867 | result := 0; |
||
1868 | |||
1869 | drives := TObjectList.Create(true); |
||
1870 | try |
||
1871 | ListDrives(drives); |
||
1872 | for i := 0 to drives.Count - 1 do |
||
1873 | begin |
||
1874 | result := result + TRbDrive(drives.Items[i]).GetSize; |
||
1875 | end; |
||
1876 | finally |
||
1877 | drives.Free; |
||
1878 | end; |
||
1879 | end; |
||
1880 | |||
89 | daniel-mar | 1881 | class function TRecycleBinManager.RecycleBinPossible(Drive: AnsiChar): boolean; |
75 | daniel-mar | 1882 | var |
1883 | typ: Integer; |
||
1884 | begin |
||
1885 | // Does the drive exist? |
||
1886 | // see http://www.delphipraxis.net/post2933.html |
||
1887 | result := GetLogicalDrives and (1 shl DriveLetterToDriveNumber(Drive)) <> 0; |
||
1888 | if not result then exit; |
||
1889 | |||
1890 | // Is it a fixed drive? (Only they can have recycle bins) |
||
1891 | // TODO: is that correct, or can also have other drive types have recyclers? |
||
1892 | typ := GetDriveType(PChar(Drive + ':\')); |
||
1893 | result := typ = DRIVE_FIXED; |
||
1894 | end; |
||
1895 | |||
1896 | class function TRecycleBinManager.RecyclerGetCurrentIconString: string; |
||
1897 | begin |
||
1898 | if OwnRecyclersEmpty then |
||
1899 | result := RecyclerGetEmptyIconString |
||
1900 | else |
||
1901 | result := RecyclerGetFullIconString; |
||
1902 | end; |
||
1903 | |||
1904 | class function TRecycleBinManager.RecyclerGetDefaultIconString: string; |
||
1905 | var |
||
1906 | reg: TRegistry; |
||
1907 | begin |
||
1908 | // Please note: The "default" icon is not always the icon of the |
||
1909 | // current recycle bin in its current state (full, empty) |
||
1910 | // At Windows 95b, the registry value actually did change every time the |
||
1911 | // recycle bin state did change, but at Windows 2000 I could not see any |
||
1912 | // update, even after reboot. So, the registry value is possible fixed as |
||
1913 | // default = empty on newer OS versions. |
||
1914 | |||
1915 | reg := TRegistry.Create; |
||
1916 | try |
||
1917 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
1918 | if reg.OpenKeyReadOnly('CLSID\'+GUIDToString(RECYCLER_CLSID)+'\DefaultIcon') then |
||
1919 | begin |
||
1920 | result := reg.ReadString(''); |
||
1921 | reg.CloseKey; |
||
1922 | end; |
||
1923 | finally |
||
1924 | reg.Free; |
||
1925 | end; |
||
1926 | end; |
||
1927 | |||
1928 | class function TRecycleBinManager.RecyclerGetEmptyIconString: string; |
||
1929 | var |
||
1930 | reg: TRegistry; |
||
1931 | begin |
||
1932 | reg := TRegistry.Create; |
||
1933 | try |
||
1934 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
1935 | if reg.OpenKeyReadOnly('CLSID\'+GUIDToString(RECYCLER_CLSID)+'\DefaultIcon') then |
||
1936 | begin |
||
1937 | result := reg.ReadString('Empty'); |
||
1938 | reg.CloseKey; |
||
1939 | end; |
||
1940 | finally |
||
1941 | reg.Free; |
||
1942 | end; |
||
1943 | end; |
||
1944 | |||
1945 | class function TRecycleBinManager.RecyclerGetFullIconString: string; |
||
1946 | var |
||
1947 | reg: TRegistry; |
||
1948 | begin |
||
1949 | reg := TRegistry.Create; |
||
1950 | try |
||
1951 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
1952 | if reg.OpenKeyReadOnly('CLSID\'+GUIDToString(RECYCLER_CLSID)+'\DefaultIcon') then |
||
1953 | begin |
||
1954 | result := reg.ReadString('Full'); |
||
1955 | reg.CloseKey; |
||
1956 | end; |
||
1957 | finally |
||
1958 | reg.Free; |
||
1959 | end; |
||
1960 | end; |
||
1961 | |||
1962 | class function TRecycleBinManager.RecyclerGetInfoTip: string; |
||
1963 | var |
||
1964 | reg: TRegistry; |
||
1965 | begin |
||
1966 | // Not available in some older versions of Windows |
||
1967 | |||
1968 | reg := TRegistry.Create; |
||
1969 | try |
||
1970 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
1971 | if reg.OpenKeyReadOnly('CLSID\'+GUIDToString(RECYCLER_CLSID)) then |
||
1972 | begin |
||
1973 | result := reg.ReadString('InfoTip'); |
||
1974 | result := DecodeReferenceString(result); |
||
1975 | |||
1976 | reg.CloseKey; |
||
1977 | end; |
||
1978 | finally |
||
1979 | reg.Free; |
||
1980 | end; |
||
1981 | end; |
||
1982 | |||
1983 | class function TRecycleBinManager.RecyclerGetIntroText: string; |
||
1984 | var |
||
1985 | reg: TRegistry; |
||
1986 | begin |
||
1987 | // Not available in some older versions of Windows |
||
1988 | |||
1989 | reg := TRegistry.Create; |
||
1990 | try |
||
1991 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
1992 | if reg.OpenKeyReadOnly('CLSID\'+GUIDToString(RECYCLER_CLSID)) then |
||
1993 | begin |
||
1994 | result := reg.ReadString('IntroText'); |
||
1995 | result := DecodeReferenceString(result); |
||
1996 | |||
1997 | reg.CloseKey; |
||
1998 | end; |
||
1999 | finally |
||
2000 | reg.Free; |
||
2001 | end; |
||
2002 | end; |
||
2003 | |||
2004 | class function TRecycleBinManager.RecyclerGetName: string; |
||
2005 | var |
||
2006 | reg: TRegistry; |
||
2007 | begin |
||
2008 | // Windows 95b: |
||
2009 | // Change of CLSID\{645FF040-5081-101B-9F08-00AA002F954E} will change the desktop name of the recycle bin. |
||
2010 | |||
2011 | // Windows 2000: If LocalizedString is available, the 3rd argument will be parsed |
||
2012 | // (if the third argument will removed, it will be read out from the DLL resource string automatically) |
||
2013 | |||
2014 | reg := TRegistry.Create; |
||
2015 | try |
||
2016 | reg.RootKey := HKEY_CLASSES_ROOT; |
||
2017 | if reg.OpenKeyReadOnly('CLSID\'+GUIDToString(RECYCLER_CLSID)) then |
||
2018 | begin |
||
2019 | if reg.ValueExists('LocalizedString') then |
||
2020 | begin |
||
2021 | result := reg.ReadString('LocalizedString'); |
||
2022 | result := DecodeReferenceString(result); |
||
2023 | end |
||
2024 | else |
||
2025 | begin |
||
2026 | result := reg.ReadString(''); |
||
2027 | end; |
||
2028 | |||
2029 | reg.CloseKey; |
||
2030 | end; |
||
2031 | finally |
||
2032 | reg.Free; |
||
2033 | end; |
||
2034 | end; |
||
2035 | |||
2036 | class function TRecycleBinManager.RecyclerEmptyEventGetName: string; |
||
2037 | var |
||
2038 | reg: TRegistry; |
||
2039 | begin |
||
2040 | reg := TRegistry.Create; |
||
2041 | try |
||
2042 | reg.RootKey := HKEY_CURRENT_USER; |
||
2043 | if reg.OpenKeyReadOnly('AppEvents\EventLabels\EmptyRecycleBin') then |
||
2044 | begin |
||
2045 | result := reg.ReadString(''); |
||
2046 | reg.CloseKey; |
||
2047 | end; |
||
2048 | finally |
||
2049 | reg.Free; |
||
2050 | end; |
||
2051 | end; |
||
2052 | |||
2053 | class function TRecycleBinManager.RecyclerEmptyEventGetCurrentSound: string; |
||
2054 | begin |
||
2055 | result := RecyclerEmptyEventGetSound('.Current'); |
||
2056 | end; |
||
2057 | |||
2058 | class function TRecycleBinManager.RecyclerEmptyEventGetDefaultSound: string; |
||
2059 | begin |
||
2060 | result := RecyclerEmptyEventGetSound('.Default'); |
||
2061 | end; |
||
2062 | |||
2063 | class procedure TRecycleBinManager.RecyclerEmptyEventGetSoundCategories(AStringList: TStringList); |
||
2064 | var |
||
2065 | reg: TRegistry; |
||
2066 | begin |
||
2067 | reg := TRegistry.Create; |
||
2068 | try |
||
2069 | reg.RootKey := HKEY_CURRENT_USER; |
||
2070 | if reg.OpenKeyReadOnly('AppEvents\Schemes\Apps\Explorer\EmptyRecycleBin') then |
||
2071 | begin |
||
2072 | reg.GetKeyNames(AStringList); |
||
2073 | reg.CloseKey; |
||
2074 | end; |
||
2075 | finally |
||
2076 | reg.Free; |
||
2077 | end; |
||
2078 | end; |
||
2079 | |||
2080 | class function TRecycleBinManager.RecyclerEmptyEventGetSound(ACategory: string): string; |
||
2081 | var |
||
2082 | reg: TRegistry; |
||
2083 | resourcestring |
||
2084 | LNG_SND_EVENT_CAT_ERROR = 'The category "%s" is not available for the notification event "%s".'; |
||
2085 | begin |
||
2086 | // Outputs an filename or empty string for no sound defined. |
||
2087 | |||
2088 | reg := TRegistry.Create; |
||
2089 | try |
||
2090 | reg.RootKey := HKEY_CURRENT_USER; |
||
2091 | if reg.OpenKeyReadOnly('AppEvents\Schemes\Apps\Explorer\EmptyRecycleBin') then |
||
2092 | begin |
||
2093 | if reg.OpenKeyReadOnly(ACategory) then |
||
2094 | begin |
||
2095 | result := reg.ReadString(''); |
||
2096 | reg.CloseKey; |
||
2097 | end |
||
2098 | else |
||
2099 | raise EEventCategoryNotDefined.CreateFmt(LNG_SND_EVENT_CAT_ERROR, [ACategory, 'EmptyRecycleBin']); |
||
2100 | reg.CloseKey; |
||
2101 | end; |
||
2102 | finally |
||
2103 | reg.Free; |
||
2104 | end; |
||
2105 | end; |
||
2106 | |||
2107 | class function TRecycleBinManager.RecyclerQueryFunctionAvailable: boolean; |
||
2108 | var |
||
2109 | RBHandle: THandle; |
||
2110 | SHQueryRecycleBin: TSHQueryRecycleBin; |
||
2111 | begin |
||
2112 | // Windows 95 without Internet Explorer 4 has no SHQueryRecycleBinA. |
||
2113 | RBHandle := LoadLibrary(shell32); |
||
2114 | try |
||
2115 | if RBHandle <> 0 then |
||
2116 | begin |
||
2117 | SHQueryRecycleBin := GetProcAddress(RBHandle, C_SHQueryRecycleBin); |
||
2118 | if not Assigned(@SHQueryRecycleBin) then |
||
2119 | begin |
||
2120 | FreeLibrary(RBHandle); |
||
2121 | RBHandle := 0; |
||
2122 | end; |
||
2123 | end; |
||
2124 | |||
2125 | result := RBHandle <> 0; |
||
2126 | finally |
||
2127 | if RBHandle <> 0 then FreeLibrary(RBHandle); |
||
2128 | end; |
||
2129 | end; |
||
2130 | |||
2131 | class function TRecycleBinManager.RecyclerAddFileOrFolder(FileOrFolder: string; confirmation: boolean=false): boolean; |
||
2132 | var |
||
2133 | Operation: TSHFileOpStruct; |
||
2134 | begin |
||
2135 | // Template: http://www.dsdt.info/tipps/?id=116 |
||
2136 | with Operation do |
||
2137 | begin |
||
2138 | Wnd := hInstance; // OK? |
||
2139 | wFunc := FO_DELETE; |
||
2140 | pFrom := PChar(FileOrFolder + #0); |
||
2141 | pTo := nil; |
||
2142 | fFlags := FOF_ALLOWUNDO; |
||
2143 | if not confirmation then fFlags := fFlags or FOF_NOCONFIRMATION; |
||
2144 | end; |
||
2145 | Result := SHFileOperation(Operation) = 0; |
||
2146 | end; |
||
2147 | |||
2148 | class function TRecycleBinManager.RecyclerGroupPolicyNoRecycleFiles: GPOLICYBOOL; |
||
2149 | var |
||
2150 | reg: TRegistry; |
||
2151 | begin |
||
2152 | result := gpUndefined; |
||
2153 | |||
2154 | reg := TRegistry.Create; |
||
2155 | try |
||
2156 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, |
||
2157 | // even if gpedit.msc shows "Not configured"! |
||
2158 | {$IFDEF GroupPolicyAcceptHKLMTrick} |
||
2159 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2160 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
2161 | begin |
||
2162 | if reg.ValueExists('NoRecycleFiles') then |
||
2163 | begin |
||
2164 | if reg.ReadBool('NoRecycleFiles') then |
||
2165 | result := gpEnabled |
||
2166 | else |
||
2167 | result := gpDisabled; |
||
2168 | Exit; |
||
2169 | end; |
||
2170 | reg.CloseKey; |
||
2171 | end; |
||
2172 | {$ENDIF} |
||
2173 | |||
2174 | reg.RootKey := HKEY_CURRENT_USER; |
||
2175 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
2176 | begin |
||
2177 | if reg.ValueExists('NoRecycleFiles') then |
||
2178 | begin |
||
2179 | if reg.ReadBool('NoRecycleFiles') then |
||
2180 | result := gpEnabled |
||
2181 | else |
||
2182 | result := gpDisabled; |
||
2183 | end; |
||
2184 | reg.CloseKey; |
||
2185 | end; |
||
2186 | finally |
||
2187 | reg.Free; |
||
2188 | end; |
||
2189 | end; |
||
2190 | |||
2191 | class function TRecycleBinManager.RecyclerGroupPolicyConfirmFileDelete: GPOLICYBOOL; |
||
2192 | var |
||
2193 | reg: TRegistry; |
||
2194 | begin |
||
2195 | result := gpUndefined; |
||
2196 | reg := TRegistry.Create; |
||
2197 | try |
||
2198 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, |
||
2199 | // even if gpedit.msc shows "Not configured"! |
||
2200 | {$IFDEF GroupPolicyAcceptHKLMTrick} |
||
2201 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2202 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
2203 | begin |
||
2204 | if reg.ValueExists('ConfirmFileDelete') then |
||
2205 | begin |
||
2206 | if reg.ReadBool('ConfirmFileDelete') then |
||
2207 | result := gpEnabled |
||
2208 | else |
||
2209 | result := gpDisabled; |
||
2210 | Exit; |
||
2211 | end; |
||
2212 | reg.CloseKey; |
||
2213 | end; |
||
2214 | {$ENDIF} |
||
2215 | |||
2216 | reg.RootKey := HKEY_CURRENT_USER; |
||
2217 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
2218 | begin |
||
2219 | if reg.ValueExists('ConfirmFileDelete') then |
||
2220 | begin |
||
2221 | if reg.ReadBool('ConfirmFileDelete') then |
||
2222 | result := gpEnabled |
||
2223 | else |
||
2224 | result := gpDisabled; |
||
2225 | end; |
||
2226 | reg.CloseKey; |
||
2227 | end; |
||
2228 | finally |
||
2229 | reg.Free; |
||
2230 | end; |
||
2231 | end; |
||
2232 | |||
2233 | class function TRecycleBinManager.RecyclerGroupPolicyRecycleBinSize: integer; |
||
2234 | var |
||
2235 | reg: TRegistry; |
||
2236 | begin |
||
2237 | result := -1; |
||
2238 | reg := TRegistry.Create; |
||
2239 | try |
||
2240 | // If a value is set in HKEY_LOCAL_MACHINE, it will be prefered, |
||
2241 | // even if gpedit.msc shows "Not configured"! |
||
2242 | {$IFDEF GroupPolicyAcceptHKLMTrick} |
||
2243 | reg.RootKey := HKEY_LOCAL_MACHINE; |
||
2244 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
2245 | begin |
||
2246 | if reg.ValueExists('RecycleBinSize') then |
||
2247 | begin |
||
2248 | result := reg.ReadInteger('RecycleBinSize'); |
||
2249 | Exit; |
||
2250 | end; |
||
2251 | reg.CloseKey; |
||
2252 | end; |
||
2253 | {$ENDIF} |
||
2254 | |||
2255 | reg.RootKey := HKEY_CURRENT_USER; |
||
2256 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Policies\Explorer') then |
||
2257 | begin |
||
2258 | if reg.ValueExists('RecycleBinSize') then |
||
2259 | begin |
||
2260 | result := reg.ReadInteger('RecycleBinSize'); |
||
2261 | end; |
||
2262 | reg.CloseKey; |
||
2263 | end; |
||
2264 | finally |
||
2265 | reg.Free; |
||
2266 | end; |
||
2267 | end; |
||
2268 | |||
2269 | class function TRecycleBinManager.RecyclerConfirmationDialogEnabled: boolean; |
||
2270 | var |
||
2271 | gp: GPOLICYBOOL; |
||
2272 | begin |
||
2273 | gp := RecyclerGroupPolicyConfirmFileDelete; |
||
2274 | if gp <> gpUndefined then |
||
2275 | begin |
||
2276 | result := gp = gpEnabled; |
||
2277 | end |
||
2278 | else |
||
2279 | begin |
||
2280 | result := RecyclerShellStateConfirmationDialogEnabled; |
||
2281 | end; |
||
2282 | end; |
||
2283 | |||
2284 | class function TRecycleBinManager.RecyclerShellStateConfirmationDialogEnabled: boolean; |
||
2285 | var |
||
2286 | lpss: SHELLSTATE; |
||
2287 | bNoConfirmRecycle: boolean; |
||
2288 | |||
2289 | PSHGetSettings: TSHGetSettings; |
||
2290 | RBHandle: THandle; |
||
2291 | |||
2292 | reg: TRegistry; |
||
2293 | rbuf: array[0..255] of byte; |
||
2294 | begin |
||
2295 | PSHGetSettings := nil; |
||
2296 | result := false; // Avoid warning message |
||
2297 | |||
2298 | RBHandle := LoadLibrary(shell32); |
||
2299 | try |
||
2300 | if RBHandle <> 0 then |
||
2301 | begin |
||
2302 | PSHGetSettings := GetProcAddress(RBHandle, C_SHGetSettings); |
||
2303 | if not Assigned(@PSHGetSettings) then |
||
2304 | begin |
||
2305 | FreeLibrary(RBHandle); |
||
2306 | RBHandle := 0; |
||
2307 | end; |
||
2308 | end; |
||
2309 | |||
2310 | if (RBHandle <> 0) and Assigned(PSHGetSettings) then |
||
2311 | begin |
||
2312 | ZeroMemory(@lpss, SizeOf(lpss)); |
||
2313 | PSHGetSettings(lpss, SSF_NOCONFIRMRECYCLE); |
||
2314 | bNoConfirmRecycle := (lpss.Flags1 and 4) = 4; // fNoConfirmRecycle |
||
2315 | |||
2316 | result := not bNoConfirmRecycle; |
||
2317 | end |
||
2318 | else |
||
2319 | begin |
||
2320 | reg := TRegistry.Create; |
||
2321 | try |
||
2322 | // API function call failed. Probably because Windows is too old. |
||
2323 | // Try to read out from registry. |
||
2324 | // The 3rd bit of the 5th byte of "ShellState" is the value |
||
2325 | // of "fNoConfirmRecycle". |
||
2326 | |||
2327 | reg.RootKey := HKEY_CURRENT_USER; |
||
2328 | if reg.OpenKeyReadOnly('Software\Microsoft\Windows\CurrentVersion\Explorer') then |
||
2329 | begin |
||
2330 | ZeroMemory(@rbuf, SizeOf(rbuf)); |
||
2331 | reg.ReadBinaryData('ShellState', rbuf, SizeOf(rbuf)); |
||
2332 | |||
2333 | // Lese 3tes Bit vom 5ten Byte |
||
2334 | bNoConfirmRecycle := ((rbuf[4] and 4) = 4); |
||
2335 | result := not bNoConfirmRecycle; |
||
2336 | |||
2337 | reg.CloseKey; |
||
2338 | end |
||
2339 | else |
||
2340 | begin |
||
2341 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_NOT_CALLABLE, [C_SHGetSettings])]); |
||
2342 | end; |
||
2343 | finally |
||
2344 | reg.Free; |
||
2345 | end; |
||
2346 | end; |
||
2347 | finally |
||
2348 | if RBHandle <> 0 then FreeLibrary(RBHandle); |
||
2349 | end; |
||
2350 | end; |
||
2351 | |||
2352 | class procedure TRecycleBinManager.RecyclerConfirmationDialogSetEnabled(NewSetting: boolean); |
||
2353 | var |
||
2354 | lpss: SHELLSTATE; |
||
2355 | |||
2356 | PSHGetSetSettings: TSHGetSetSettings; |
||
2357 | RBHandle: THandle; |
||
2358 | |||
2359 | reg: TRegistry; |
||
2360 | rbuf: array[0..255] of byte; |
||
2361 | |||
89 | daniel-mar | 2362 | //dwResult: DWORD; |
2363 | lpdwResult: PDWORD_PTR; |
||
75 | daniel-mar | 2364 | begin |
2365 | PSHGetSetSettings := nil; |
||
89 | daniel-mar | 2366 | lpdwResult := nil; |
75 | daniel-mar | 2367 | |
2368 | RBHandle := LoadLibrary(shell32); |
||
2369 | try |
||
2370 | if RBHandle <> 0 then |
||
2371 | begin |
||
2372 | PSHGetSetSettings := GetProcAddress(RBHandle, C_SHGetSetSettings); |
||
2373 | if not Assigned(@PSHGetSetSettings) then |
||
2374 | begin |
||
2375 | FreeLibrary(RBHandle); |
||
2376 | RBHandle := 0; |
||
2377 | end; |
||
2378 | end; |
||
2379 | |||
2380 | if (RBHandle <> 0) and Assigned(PSHGetSetSettings) then |
||
2381 | begin |
||
2382 | ZeroMemory(@lpss, SizeOf(lpss)); |
||
2383 | |||
2384 | PSHGetSetSettings(lpss, SSF_NOCONFIRMRECYCLE, false); // Get |
||
2385 | |||
2386 | // Set 3rd bit equal to NewSetting |
||
2387 | if NewSetting then |
||
2388 | lpss.Flags1 := lpss.Flags1 or $00000004 |
||
2389 | else |
||
2390 | lpss.Flags1 := lpss.Flags1 and $FFFFFFFB; |
||
2391 | |||
2392 | PSHGetSetSettings(lpss, SSF_NOCONFIRMRECYCLE, true); // Set |
||
2393 | |||
2394 | SendMessageTimeout ( |
||
2395 | HWND_BROADCAST, WM_SETTINGCHANGE, |
||
2396 | 0, lParam (pChar ('ShellState')), |
||
89 | daniel-mar | 2397 | SMTO_ABORTIFHUNG, 5000, lpdwResult(*dwResult*) |
75 | daniel-mar | 2398 | ); |
2399 | end |
||
2400 | else |
||
2401 | begin |
||
2402 | reg := TRegistry.Create; |
||
2403 | try |
||
2404 | // API function call failed. Probably because Windows is too old. |
||
2405 | // Try to read out from registry. |
||
2406 | // The 3rd bit of the 5th byte of "ShellState" is the value |
||
2407 | // of "fNoConfirmRecycle". |
||
2408 | |||
2409 | reg.RootKey := HKEY_CURRENT_USER; |
||
2410 | if reg.OpenKey('Software\Microsoft\Windows\CurrentVersion\Explorer', false) then |
||
2411 | begin |
||
2412 | ZeroMemory(@rbuf, SizeOf(rbuf)); |
||
2413 | |||
2414 | reg.ReadBinaryData('ShellState', rbuf, SizeOf(rbuf)); // Get |
||
2415 | |||
2416 | // Set 3rd bit equal to NewSetting |
||
2417 | if NewSetting then |
||
2418 | rbuf[4] := rbuf[4] or $04 |
||
2419 | else |
||
2420 | rbuf[4] := rbuf[4] and $FB; |
||
2421 | |||
2422 | reg.WriteBinaryData('ShellState', rbuf, SizeOf(rbuf)); // Set |
||
2423 | |||
2424 | SendMessageTimeout ( |
||
2425 | HWND_BROADCAST, WM_SETTINGCHANGE, |
||
2426 | 0, lParam (pChar ('ShellState')), |
||
89 | daniel-mar | 2427 | SMTO_ABORTIFHUNG, 5000, lpdwResult(*dwResult*) |
75 | daniel-mar | 2428 | ); |
2429 | |||
2430 | reg.CloseKey; |
||
2431 | end |
||
2432 | else |
||
2433 | begin |
||
2434 | raise EAPICallError.CreateFmt(LNG_API_CALL_ERROR, [Format(LNG_NOT_CALLABLE, [C_SHGetSetSettings])]); |
||
2435 | end; |
||
2436 | finally |
||
2437 | reg.Free; |
||
2438 | end; |
||
2439 | end; |
||
2440 | finally |
||
2441 | if RBHandle <> 0 then FreeLibrary(RBHandle); |
||
2442 | end; |
||
2443 | end; |
||
2444 | |||
2445 | { TRbRecycleBinItem } |
||
2446 | |||
2447 | function TRbRecycleBinItem.GetSource: string; |
||
2448 | begin |
||
2449 | {$IFDEF UNICODE} |
||
2450 | result := SourceUnicode; |
||
2451 | {$ELSE} |
||
2452 | result := SourceAnsi; |
||
2453 | {$ENDIF} |
||
2454 | end; |
||
2455 | |||
2456 | end. |