Coping file with progress

Hi,

How to copy file with showing progress in progressbar?


Regards

U can use the Animated Copy Functions in Windows.

Sample from the MSDN

Quote:

---

MSDN

VB Code:

Option Explicit
 
Private Const FO_COPY = &H2&   'Copies the files specified
                               'in the pFrom member to the
                               'location specified in the
                               'pTo member.
 
Private Const FO_DELETE = &H3& 'Deletes the files specified
                               'in pFrom (pTo is ignored.)
 
Private Const FO_MOVE = &H1&   'Moves the files specified
                               'in pFrom to the location
                               'specified in pTo.
 
Private Const FO_RENAME = &H4& 'Renames the files
                               'specified in pFrom.
 
Private Const FOF_ALLOWUNDO = &H40&   'Preserve Undo information.
 
Private Const FOF_CONFIRMMOUSE = &H2& 'Not currently implemented.
 
Private Const FOF_CREATEPROGRESSDLG = &H0& 'handle to the parent
                                           'window for the
                                           'progress dialog box.
 
Private Const FOF_FILESONLY = &H80&        'Perform the operation
                                           'on files only if a
                                           'wildcard file name
                                           '(*.*) is specified.
 
Private Const FOF_MULTIDESTFILES = &H1&    'The pTo member
                                           'specifies multiple
                                           'destination files (one
                                           'for each source file)
                                           'rather than one
                                           'directory where all
                                           'source files are
                                           'to be deposited.
 
Private Const FOF_NOCONFIRMATION = &H10&   'Respond with Yes to
                                           'All for any dialog box
                                           'that is displayed.
 
Private Const FOF_NOCONFIRMMKDIR = &H200&  'Does not confirm the
                                           'creation of a new
                                           'directory if the
                                           'operation requires one
                                           'to be created.
 
Private Const FOF_RENAMEONCOLLISION = &H8& 'Give the file being
                                           'operated on a new name
                                           'in a move, copy, or
                                           'rename operation if a
                                           'file with the target
                                           'name already exists.
 
Private Const FOF_SILENT = &H4&            'Does not display a
                                           'progress dialog box.
 
Private Const FOF_SIMPLEPROGRESS = &H100&  'Displays a progress
                                           'dialog box but does
                                           'not show the
                                           'file names.
 
Private Const FOF_WANTMAPPINGHANDLE = &H20&
                          'If FOF_RENAMEONCOLLISION is specified,
                          'the hNameMappings member will be filled
                          'in if any files were renamed.
 
' The SHFILOPSTRUCT is not double-word aligned. If no steps are
' taken, the last 3 variables will not be passed correctly. This
' has no impact unless the progress title needs to be changed.
 
Private Type SHFILEOPSTRUCT
   hwnd As Long
   wFunc As Long
   pFrom As String
   pTo As String
   fFlags As Integer
   fAnyOperationsAborted As Long
   hNameMappings As Long
   lpszProgressTitle As String
End Type
 
Private Declare Sub CopyMemory Lib "KERNEL32" _
      Alias "RtlMoveMemory" _
      (hpvDest As Any, _
      hpvSource As Any, _
      ByVal cbCopy As Long)
 
Private Declare Function SHFileOperation Lib "Shell32.dll" _
      Alias "SHFileOperationA" _
      (lpFileOp As Any) As Long
 
Private Sub Form_Load()
   Check1.Caption = "Copy All Files in VB Directory"
   Check2.Caption = "Display Custom Message"
   Command1.Caption = "Copy Files"
End Sub
 
Private Sub Command1_Click()
   Dim result As Long
   Dim lenFileop As Long
   Dim foBuf() As Byte
   Dim fileop As SHFILEOPSTRUCT
 
   lenFileop = LenB(fileop)    ' double word alignment increase
   ReDim foBuf(1 To lenFileop) ' the size of the structure.
 
   With fileop
      .hwnd = Me.hwnd
 
      .wFunc = FO_COPY
         
      ' The files to copy separated by Nulls and terminated by two
      ' nulls
      If Check1.Value = vbChecked Then
            .pFrom = Environ("windir") & "\*.exe"
         .fFlags = FOF_SIMPLEPROGRESS Or FOF_FILESONLY
      Else
         .pFrom = Environ("windir") & "\Explorer.exe" _
                  & vbNullChar _
                  & Environ("windir") & "\WinHelp.exe" _
                  & vbNullChar _
                  & vbNullChar
      End If
 
      .pTo = "C:\testfolder\" & vbNullChar & vbNullChar
 
      If Check2.Value = vbChecked Then
         .fFlags = FOF_SIMPLEPROGRESS Or FOF_NOCONFIRMATION Or _
                   FOF_NOCONFIRMMKDIR
         .lpszProgressTitle = "Your custom dialog string " & _
                              "appears here." & vbNullChar _
                                              & vbNullChar
      End If
   End With
 
   ' Now we need to copy the structure into a byte array
   Call CopyMemory(foBuf(1), fileop, lenFileop)
 
   ' Next we move the last 12 bytes by 2 to byte align the data
   Call CopyMemory(foBuf(19), foBuf(21), 12)
   result = SHFileOperation(foBuf(1))
 
   If result <> 0 Then  ' Operation failed
      MsgBox Err.LastDllError 'Show the error returned from
                              'the API.
      Else
      If fileop.fAnyOperationsAborted <> 0 Then
         MsgBox "Operation Failed"
      End If
   End If
End Sub

---

Quote:

---

MSDN

MORE INFORMATION
The SHFileOperation function provides the ability to move, rename, or delete file system objects based on the flags passed to the function. The function requires the address of the SHFILEOPSSTRUCT structure. This structure contains the following members:

hwnd - Window handle to the dialog box to display information about the status of the file operation.


wFunc - the operation to perform, as defined by one of the following values:


FO_COPY - Copies the files specified in the pFrom member to the location specified in the pTo member.


FO_DELETE - Deletes the files specified in pFrom. (pTo is ignored.)


FO_MOVE - Moves the files specified in pFrom to the location specified in pTo.


FO_RENAME - Renames the files specified in pFrom.


pFrom - Address of a buffer to specify one or more source file names. Multiple names must be null-separated. The list of names must be double null-terminated.


pTo - Address of a buffer to contain the name of the destination file or directory. The buffer can contain multiple destination file names if the fFlags member specifies FOF_MULTIDESTFILES. Multiple names must be null-separated. The list of names must be double null-terminated.


fFlags - Flags that control the file operation. This member can be a combination of the following flags:


FOF_ALLOWUNDO - Preserve Undo information, if possible.


FOF_CONFIRMMOUSE - Not currently implemented.


FOF_FILESONLY - Perform the operation on files only if a wildcard file name (*.*) is specified.


FOF_MULTIDESTFILES - The pTo member specifies multiple destination files (one for each source file) rather than one directory where all source files are to be deposited.


FOF_NOCONFIRMATION - Respond with Yes to All for any dialog box that is displayed.


FOF_NOCONFIRMMKDIR - Does not confirm the creation of a new directory if the operation requires one to be created.


FOF_NOERRORUI - No user interface will be displayed if an error occurs.


FOF_RENAMEONCOLLISION - Give the file being operated on a new name in a move, copy, or rename operation if a file with the target name already exists.


FOF_SILENT - Does not display a progress dialog box.


FOF_SIMPLEPROGRESS - Displays a progress dialog box but does not show the file names.


FOF_WANTMAPPINGHANDLE - If FOF_RENAMEONCOLLISION is specified, the hNameMappings member will be filled in if any files were renamed.


fAnyOperationsAborted - Value that receives TRUE if the user aborted any file operations before they were completed, or FALSE otherwise.


hNameMappings - Handle to a file name mapping object that contains an array of SHNAMEMAPPING structures. Each structure contains the old and new path names for each file that was moved, copied, or renamed. This member is used only if the fFlags member includes the FOF_WANTMAPPINGHANDLE flag. The handle must be freed by using the SHFreeNameMappings function.


lpszProgressTitle - Address of a string to use as the title of a progress dialog box. This member is used only if fFlags includes the FOF_SIMPLEPROGRESS flag.


NOTE: The 32-bit version of Visual Basic aligns structures at double-word boundaries, but some API functions, such as the SHFileOperation, expect the data to arrive as byte-aligned. If you pass the SHFILEOPSTRUCT structure without taking this double-word boundary into consideration, the fAnyOperationsAborted, hNameMappings, and the lpszProgressTitle members of the structure will not be passed correctly. If you want the copy dialog box to contain a custom message string as defined by the lpszProgressTitle member, use a byte array to work around this limitation. The use of a byte array is demonstrated in the sample project.

---

Thanks, but is any way to get witch files are and witch aren't copied when I copy a list of files?

sorry, I thought u wanted the progress on each file.

If u know how many files to copy, u just set the statusbar max property to that number.

then increase by one each time u copy a file.

Use this code:

Dim SourceFile, DestinationFile
SourceFile = App.Path & "\" & "Engmess.txt" ' Define source file name."
DestinationFile = txtBackUp.Text ' Define target file name.
FileCopy SourceFile, DestinationFile ' Copy source to target.

Thanks, I found what I was searching for.