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APICopyFIle does nothing

Peborgh
Peborgh asked
on
Medium Priority
763 Views
Last Modified: 2007-12-19
From Access 2002 (XP) VB code.

I have:

"
Option Compare Database
Option Explicit

Declare Function apiCopyFile Lib "kernel32" Alias "CopyFileA" _
        (ByVal lpExistingFileName As String, _
         ByVal lpNewFileName As String, _
         ByVal bFailIfExists As Long) As Long
         
Sub CopyFile(SourceFile As String, DestFile As String)
'---------------------------------------------------------------
' PURPOSE: Copy a file on disk from one location to another.
' ACCEPTS: The name of the source file and destination file.
' RETURNS: Nothing
'---------------------------------------------------------------
    Dim result As Long
    If Dir(SourceFile) = "" Then
        MsgBox Chr(34) & SourceFile & Chr(34) & _
               " is not valid file name."
    Else
        result = apiCopyFile(SourceFile, DestFile, False)
    End If
     
End Sub
"

The APICopyFIle returns 0 but does not copy the file(s) across! And, before you ask, the original file exists in the path I give it. So does the target floder.

Example of use:

"
        CopyFile COU30 & "Cg3 US " & username & ".mde", COU3
"

where COU30 is string "C:\Program Files\Fred 3\"
and COU3 is string "C:\Program Files\Fred 3.1\"
and username is "example3"

Any ideas, however insultingly obvious they should have been to me...

Many thanks.
Comment
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Top Expert 2016

Commented:
you can just use the Access command FileCopy


    FileCopy SourcePath, DestPath
CERTIFIED EXPERT
Top Expert 2006

Commented:
Perhaps destfile is not writable, permissions not there?



As a alternative, have u tried FileCopy? builtin func, no api required


Sub CopyFile2(SourceFile As String, DestFile As String)

    Dim result As Long

    On Error Resume Next

    If Dir(SourceFile) = "" Then
        MsgBox Chr(34) & SourceFile & Chr(34) & _
               " is not valid file name."
    Else
        Err.Clear
        If DIr$(DestFile) <> "" Then kill DestFile
        If Err.Number <> 0 Then
             msgbox "Crap, I cant delete the damn destination file." & vbcrlf & err.description
        Else
            FileCopy SourceFile, DestFile
            If Err.Number <> 0 Then
                msgbox "Not having a good day as the file copy has failed.." & vbcrlf & err.description
            End if
        End if
    End If
     
End Sub

Author

Commented:
I was using my CopyFile because FileCopy died when the destination file already existed and, I think, because the destination had to be afile and could not be a folder. I am not sure any more, sorry. Or maybe it was that I could not copy a wildcarded bucnh of files at a time...

If you can aasure me that FileCopy will do these things I require, I will repent and return to the fold!

Many thanks,

peter
CERTIFIED EXPERT
Top Expert 2006
Commented:
Ok, so u want the option to copy to folders

Lets see if this works


Sub CopyFile2(SourceFile As String, DestFile As String)

    Dim result As Long

    On Error Resume Next

    If Dir(SourceFile) = "" Then
        MsgBox Chr(34) & SourceFile & Chr(34) & _
               " is not valid file name."
    Else
        Err.Clear
        'Check if DestFile is a folder

        If Dir$(DestFile,vbDirectory) <> "" Then
            If Right$(DestFile,1) <> "\" Then DestFile = DestFile & "\"
            DestFile = DestFile & Dir$(SourceFile)
        End if

        If DIr$(DestFile) <> "" Then kill DestFile
        If Err.Number <> 0 Then
             msgbox "Crap, I cant delete the damn destination file." & vbcrlf & err.description
        Else
            FileCopy SourceFile, DestFile
            If Err.Number <> 0 Then
                msgbox "Not having a good day as the file copy has failed.." & vbcrlf & err.description
            End if
        End if
    End If
     
End Sub



dont do wildcards though

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Author

Commented:
All, thank you for all your trouble, especially Bumpy Way.

In the end, the solution I wnet for that does all I want, is to use FileSystemObject.CopyFile. Points to Crooked Mile for trying so hard...
peter

Author

Commented:
... and humourous error messages.
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