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Is _WinAPI_CopyFileEx missing parameter?

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When I looked here (https://msdn.microsoft.com/en-us/library/windows/desktop/aa363852(v=vs.85).aspx) about how to cancel copying with _WinAPI_CopyFileEx it says when pbCancel flag is set to true during the copy operation, the operation is canceled. But it seems that _WinAPI_CopyFileEx is missing that parameter?

Func _WinAPI_CopyFileEx($sExistingFile, $sNewFile, $iFlags = 0, $pProgressProc = 0, $pData = 0)
    Local $aRet = DllCall('kernel32.dll', 'bool', 'CopyFileExW', 'wstr', $sExistingFile, 'wstr', $sNewFile, _
            'ptr', $pProgressProc, 'struct*', $pData, 'bool*', 0, 'dword', $iFlags)
    If @error Then Return SetError(@error, @extended, 0)
    ; If Not $aRet[0] Then Return SetError(1000, 0, 0)

    Return $aRet[0]
EndFunc   ;==>_WinAPI_CopyFileEx
Edited by kosamja
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It's not missing, it's just not used in the UDF function, if you look toward the end of the DLLCall you'll see "bool*" and then 0. It starts the copy and then doesn't allow for it to be canceled.

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