DOCUMENT:Q165919 05-JUN-2001 [vbwin] TITLE :HOWTO: Use the Windows 95/98/Me Copy and Recycle Functions in VB PRODUCT :Microsoft Visual Basic for Windows PROD/VER::4.0,5.0,6.0 OPER/SYS: KEYWORDS:kbAPI kbSDKWin32 kbVBp kbVBp400 kbVBp500 kbVBp600 kbGrpDSVB kbDSupport ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Visual Basic Learning Edition for Windows, versions 6.0, 5.0 - Microsoft Visual Basic Professional Edition for Windows, versions 6.0, 5.0 - Microsoft Visual Basic Enterprise Edition for Windows, versions 6.0, 5.0 - Microsoft Visual Basic Control Creation Edition for Windows, version 5.0 - Microsoft Visual Basic Standard Edition, 32-bit, for Windows, version 4.0 - Microsoft Visual Basic Professional Edition, 32-bit, for Windows, version 4.0 - Microsoft Visual Basic Enterprise Edition, 32-bit, for Windows, version 4.0 ------------------------------------------------------------------------------- SUMMARY ======= The Windows API provides the ability to perform a copy, move, rename, or delete operations on a file system object using the SHFileOperation function that is exported by Shell32.DLL. The example below shows how to copy a list of files into a named folder and then move them to the Recycle Bin. The SHFileOperation provides the ability to move, rename, or delete based on the flags passed to it. For more information on what options are available, see the REFERENCES section at the end of this article. In Visual Basic 6.0, you can use the FileSystemObject Object to copy, move, rename, and delete files. However, the FileSystemObject does not provide a way of placing files in the Recycle Bin. MORE INFORMATION ================ The following example creates a single form Visual Basic project using the SHFileOperation API function. Step-by-Step Example -------------------- 1. Start a new "Standard EXE" project. Form1 is created by default. 2. Place two CommandButtons on Form1 (Command1 and Command2). 3. From the Project menu, select Add Module to add a module to the project. 4. Add the following code, consisting of function, type, and constant declarations, to Module1: Note: This sample makes use of VB.HLP and VB.CNT that are installed with a complete installation of Microsoft Visual Basic. If you do not have these files, this sample can be altered to copy other existing files. Public Const FO_MOVE As Long = &H1 Public Const FO_COPY As Long = &H2 Public Const FO_DELETE As Long = &H3 Public Const FO_RENAME As Long = &H4 Public Const FOF_MULTIDESTFILES As Long = &H1 Public Const FOF_CONFIRMMOUSE As Long = &H2 Public Const FOF_SILENT As Long = &H4 Public Const FOF_RENAMEONCOLLISION As Long = &H8 Public Const FOF_NOCONFIRMATION As Long = &H10 Public Const FOF_WANTMAPPINGHANDLE As Long = &H20 Public Const FOF_CREATEPROGRESSDLG As Long = &H0 Public Const FOF_ALLOWUNDO As Long = &H40 Public Const FOF_FILESONLY As Long = &H80 Public Const FOF_SIMPLEPROGRESS As Long = &H100 Public Const FOF_NOCONFIRMMKDIR As Long = &H200 Type SHFILEOPSTRUCT hwnd As Long wFunc As Long pFrom As String pTo As String fFlags As Long fAnyOperationsAborted As Long hNameMappings As Long lpszProgressTitle As String End Type Declare Function SHFileOperation Lib "Shell32.dll" _ Alias "SHFileOperationA" (lpFileOp As SHFILEOPSTRUCT) As Long 5. Add the following code behind Form1: Private Sub Command1_Click() Dim result As Long Dim fileop As SHFILEOPSTRUCT With fileop .hwnd = Me.hwnd .wFunc = FO_COPY 'The files to copy separated by Nulls and terminated by 2 'null. The files VB.HLP and VB.CNT are installed by a complete 'installation of Microsoft Visual Basic. If you do not have 'these files, you can alter this sample to point to existing 'files. .pFrom = "C:\PROGRAM FILES\MICROSOFT VISUAL BASIC\VB.HLP" & _ vbNullChar & _ "C:\PROGRAM FILES\MICROSOFT VISUAL BASIC\VB.CNT" & _ vbNullChar & vbNullChar 'or to copy all files use this line '.pFrom = "C:\*.*" & vbNullChar & vbNullChar 'The directory or filename(s) to copy into terminated in 2 'nulls. .pTo = "C:\testfolder\" & vbNullChar & vbNullChar .fFlags = FOF_SIMPLEPROGRESS Or FOF_FILESONLY End With result = SHFileOperation(fileop) If result <> 0 Then 'Operation failed MsgBox result, , "Copy Operation Failed" Else If fileop.fAnyOperationsAborted <> 0 Then MsgBox fileop.fAnyOperationsAborted, , "Operation Aborted" End If End If End Sub Private Sub Command2_Click() Dim DelFileOp As SHFILEOPSTRUCT Dim result As Long With DelFileOp .hwnd = Me.hwnd .wFunc = FO_DELETE 'Delete the files you just moved to C:\TestFolder. 'The files VB.HLP and VB.CNT are installed by a complete 'installation of Microsoft Visual Basic. If you do not have 'these files, you can alter this sample to point to existing 'files. .pFrom = "C:\testfolder\vb.hlp" & vbNullChar & _ "c:\testfolder\vb.cnt" & vbNullChar & vbNullChar 'Allow undo--in other words, place the files into the Recycle 'Bin .fFlags = FOF_ALLOWUNDO End With result = SHFileOperation(DelFileOp) If result <> 0 Then 'Operation failed MsgBox result, , "Delete Operation Failed" Else If DelFileOp.fAnyOperationsAborted <> 0 Then MsgBox DelFileOp.fAnyOperationsAborted, , "Operation Aborted" End If End If End Sub Private Sub Form_Load() Command1.Caption = "Copy Test" Command2.Caption = "Recycle Test" End Sub 6. From the Run menu, select Start, or press the F5 key to run the application. Click the Copy Test button. If the destination directory does not exist, a prompt to create the directory will be displayed. The copy animation will appear if the operation requires enough time. Click the Recycle Test button. A confirmation prompt regarding file deletion will be displayed. REFERENCES ========== Microsoft Win32 SDK SHFileOperation, SHFILEOPSTRUCT Additional query words: ====================================================================== Keywords : kbAPI kbSDKWin32 kbVBp kbVBp400 kbVBp500 kbVBp600 kbGrpDSVB kbDSupport Technology : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB500Search kbVB600Search kbVBA500Search kbVBA500 kbVBA600 kbVB500 kbVB600 kbVB400Search kbVB400 kbZNotKeyword3 Version : :4.0,5.0,6.0 Issue type : kbhowto ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.