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75 daniel-mar 1 
unit RecBinUnitLowLvl;
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interface
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uses
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  Windows;
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type
76 daniel-mar 9 
  PRbInfoHeader = ^TRbInfoHeader;
99 daniel-mar 10 
  TRbInfoHeader = packed record
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    format: DWORD;         // Version of the info file
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                           // Win95 (without IE4):   00 00 00 00
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                           // Win NT4:               02 00 00 00   (Win96/Cairo?)
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                           // Win95 (with IE4), 98:  04 00 00 00
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                           // Win Me, 2000, XP:      05 00 00 00   (NT4+IE4, NT5?)
100 daniel-mar 16 
    totalEntries: DWORD;   // Only Win95 (without IE4) and Win NT4, other OS versions will use the registry instead and might write information on WM_ENDSESSION for compatibility reasons
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    nextPossibleID: DWORD; // Only Win95 (without IE4) and Win NT4, other OS versions will use the registry instead and might write information on WM_ENDSESSION for compatibility reasons
101 daniel-mar 18 
    recordLength: DWORD;   // 0x118  =  ANSI records
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                           // 0x320  =  Unicode records
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    totalSize: DWORD;      // sum of all "originalSize" values;
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                           // Only Win95 (without IE4) and Win NT4, other OS versions will use the registry instead and might write information on WM_ENDSESSION for compatibility reasons
75 daniel-mar 22 
  end;
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type
76 daniel-mar 25 
  // Windows 95:      INFO file with TRbInfoRecordA; Folder deletion NOT possible
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  // Windows 95 +IE4: INFO2 file with TRbInfoRecordA; Folder deletion possible
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  PRbInfoRecordA = ^TRbInfoRecordA;
99 daniel-mar 28 
  TRbInfoRecordA = packed record
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    sourceAnsi: array[0..MAX_PATH-1] of AnsiChar; // 260 characters (including NUL terminator)
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    recordNumber: DWORD;
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    sourceDrive: DWORD; // 0=A, 1=B, 2=C, ..., 25=Z, 26=@ (this is the "Network home drive" of the Win95 days)
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    deletionTime: FILETIME;
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    originalSize: DWORD; // Size occupied on disk. Not the actual file size.
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                         // INFO2, for folders: The whole folder size with contents
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  end;
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type
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  // Windows NT4:   INFO file with TRbInfoRecordW; Folder deletion possible
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  // Windows 2000+: INFO2 file with TRbInfoRecordW; Folder deletion possible
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  PRbInfoRecordW = ^TRbInfoRecordW;
99 daniel-mar 41 
  TRbInfoRecordW = packed record
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    sourceAnsi: array[0..MAX_PATH-1] of AnsiChar; // 260 characters (including NUL terminator)
75 daniel-mar 43 
    recordNumber: DWORD;
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    sourceDrive: DWORD; // 0=A, 1=B, 2=C, ..., 25=Z, 26=@ (this is the "Network home drive" of the Win95 days)
75 daniel-mar 45 
    deletionTime: FILETIME;
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    originalSize: DWORD;
99 daniel-mar 47 
    sourceUnicode: array[0..MAX_PATH-1] of WideChar; // 260 characters (including NUL terminator)
75 daniel-mar 48 
  end;
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type
90 daniel-mar 51 
  // Introduced in Windows Vista
82 daniel-mar 52 
  PRbVistaRecord1 = ^TRbVistaRecord1;
99 daniel-mar 53 
  TRbVistaRecord1 = packed record
82 daniel-mar 54 
    version: int64; // Always 01 00 00 00 00 00 00 00
75 daniel-mar 55 
    originalSize: int64;
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    deletionTime: FILETIME;
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    sourceUnicode: array[0..MAX_PATH-1] of WideChar;
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  end;
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type
90 daniel-mar 61 
  // Introduced somewhere in a Win10 release
82 daniel-mar 62 
  PRbVistaRecord2Head = ^TRbVistaRecord2Head;
99 daniel-mar 63 
  TRbVistaRecord2Head = packed record
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    version: int64; // Always 02 00 00 00 00 00 00 00
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    originalSize: int64;
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    deletionTime: FILETIME;
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    sourceCountChars: DWORD; // including NUL
100 daniel-mar 68 
    //sourceUnicode: array[0..sourceCountChars-1] of WideChar;
82 daniel-mar 69 
  end;
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type
101 daniel-mar 72 
  // Windows 95 (tested with 4.00.180 and above) + Windows NT 4
75 daniel-mar 73 
  // HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\BitBucket: PurgeInfo (Binary)
100 daniel-mar 74 
  // TODO: also explain this in FORMAT.md ?
76 daniel-mar 75 
  PRbWin95PurgeInfo = ^TRbWin95PurgeInfo;
99 daniel-mar 76 
  TRbWin95PurgeInfo = packed record
100 daniel-mar 77 
    cbSize: DWORD; // 0x48 = 72
75 daniel-mar 78 
    bGlobalSettings: BOOL;
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    percentDrive: array['A'..'Z'] of WORD; // 0x00..0x64 = 0%..100%
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    percentHomedrive: WORD;
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    percentGlobal: WORD;
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    NukeOnDeleteBits: DWORD; // Flags "Nuke on delete"
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                             // Bit 0 (LSB): Drive A
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                             // Bit 1: Drive B
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                             // ...
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                             // Bit 25: Drive Z
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                             // Bit 26: "Network home drive"
75 daniel-mar 88 
                             // Bit 27: Global
100 daniel-mar 89 
                             // Bit 28..31 (MSB) unused
101 daniel-mar 90 
    dummy: DWORD; // "dummy to force a new size" ?! But the 0x48 format was already in Win95 beta build 180, which is the first known build with this recycle bin implementation!
100 daniel-mar 91 
  end;
75 daniel-mar 92 
 
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implementation
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end.