Retrieves the current compression state of a file or directory
#include <WinAPIFiles.au3>
_WinAPI_GetCompression ( $sFilePath )
| $sFilePath | The path to the file or directory to retrieve compression state. |
| Success: | The current compression state ($COMPRESSION_FORMAT_*). |
| Failure: | (-1) and sets the @error flag to non-zero. |
Search FSCTL_GET_COMPRESSION in MSDN Library.
#include <APISysConstants.au3>
#include <MsgBoxConstants.au3>
#include <WinAPIFiles.au3>
Local $sFile = FileOpenDialog('Select File', @ScriptDir, 'All Files (*.*)', BitOR($FD_FILEMUSTEXIST, $FD_PATHMUSTEXIST))
If @error Then Exit
Switch _WinAPI_GetCompression($sFile)
Case -1
MsgBox(($MB_ICONERROR + $MB_SYSTEMMODAL), 'Compression File', 'Unable to perform operation.')
Case $COMPRESSION_FORMAT_NONE
If _WinAPI_SetCompression($sFile, $COMPRESSION_FORMAT_DEFAULT) Then
MsgBox(($MB_ICONINFORMATION + $MB_SYSTEMMODAL), 'Compression File', 'The file compressed is successfully.')
Else
MsgBox(($MB_ICONERROR + $MB_SYSTEMMODAL), 'Compression File', 'Unable to compress file.')
EndIf
Case Else
If MsgBox(($MB_YESNO + $MB_ICONQUESTION + $MB_SYSTEMMODAL), 'Compression File', 'The file is already compressed.' & @CRLF & @CRLF & 'Decompress?') = 6 Then
If _WinAPI_SetCompression($sFile, $COMPRESSION_FORMAT_NONE) Then
MsgBox(($MB_ICONINFORMATION + $MB_SYSTEMMODAL), 'Compression File', 'The file decompressed is successfully.')
Else
MsgBox(($MB_ICONERROR + $MB_SYSTEMMODAL), 'Compression File', 'Unable to decompress file.')
EndIf
EndIf
EndSwitch