ShellFileCopy with VB6

Posted On 2012-11-25 by dwirch
Tags: VB6 Miscellaneous Scripting General Windows
Views: 1516

Copying a file with VB6 is pretty straightforward. However, giving feedback to the user during the copy process has historically been a challenge.

By leveraging the Windows API, we can utilize the same functions that Windows itself uses to copy files, and at the same time make use of the built in copy status dialog. Another VB6 post, by request.

Success or failure of the copy process will be returned as well, with a true/false value.

dim bSuccess as boolean
bSuccess = ShellFileCopy ("C:\MyFile.txt", "D:\MyFile.txt")

Option Explicit

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 Function SHFileOperation Lib "shell32.dll" _
Alias "SHFileOperationA" (lpFileOp As SHFILEOPSTRUCT) As Long

Private Const FOF_ALLOWUNDO = &H40
Private Const FO_COPY = &H2

Public Function ShellFileCopy(src As String, dest As String, _
Optional NoConfirm As Boolean = False) As Boolean

Dim lRet As Long
Dim lflags As Long

If NoConfirm Then lflags = lflags & FOF_NOCONFIRMATION
With WinType_SFO
.wFunc = FO_COPY
.pFrom = src
.pTo = dest
.fFlags = lflags
End With

lRet = SHFileOperation(WinType_SFO)
ShellFileCopy = (lRet = 0)

End Function

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