Visual Basic Programming Code Examples

Copy files using the File Copy Shell To perform "Explorer" type file coping (including the "file copy" dialog) use the following routine: Option Explicit Private Type SHFILEOPSTRUCT hWnd As Long wFunc As Long pFrom As String pTo As String fFlags As Integer fAnyOperationsAborted As Boolean hNameMappings As Long lpszProgressTitle As String End Type Private Type BrowseInfo hWndOwner As Long pidlRoot As Long sDisplayName As String sTitle As String ulFlags As Long lpfn As Long lParam As Long iImage As Long End Type Private Declare Function SHFileOperation Lib "Shell32.dll" Alias "SHFileOperationA" (lpFileOp As SHFILEOPSTRUCT) As Long Private Declare Function SHBrowseForFolder Lib "Shell32.dll" (bBrowse As BrowseInfo) As Long Private Declare Function SHGetPathFromIDList Lib "Shell32.dll" (ByVal lItem As Long, ByVal sDir As String) As Long 'Purpose : Copies file/s from a source path to a destination 'Inputs : sSourceFiles A comma delimited list of files eg "C:\test.txt,C:\other.txt" 'Outputs : Returns 0 on success, else returns an error number 'Notes : 'Revisions : Public Function FileCopyShell(ByVal sSourceFiles As String, ByVal sDestination As String) As Long Dim tFileOp As SHFILEOPSTRUCT, lPosComma As Long Const FO_COPY = &H2, FOF_ALLOWUNDO = &H40 'Replace the commas which Nulls lPosComma = InStr(1, sSourceFiles, ",") Do While lPosComma Mid$(sSourceFiles, lPosComma, 1) = vbNullChar lPosComma = InStr(lPosComma, sSourceFiles, ",") Loop 'Initialise the structure With tFileOp .hWnd = 0 .wFunc = FO_COPY .pFrom = sSourceFiles & vbNullChar & vbNullChar .pTo = sDestination & vbNullChar & vbNullChar .fFlags = FOF_ALLOWUNDO End With FileCopyShell = SHFileOperation(tFileOp) End Function