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Crash in WM_COMMAND DllStructGetData()

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I'm trying to implement a double click event in a listview.  But somehow it's crashing the program.  I'm suspecting that it has something to do with DllStructGetData() function.

Im running on version

Func WM_COMMAND($hWnd, $iMsg, $wParam, $lParam)
    #forceref $hWnd, $iMsg, $wParam
    Local $hWndFrom, $iIDFrom, $iCode, $tNMHDR, $hWndListView, $tInfo
    $iCode = BitShift($wParam, 16)
    Switch $lParam
        Case GUICtrlGetHandle($inputSerial)
            If $iCode = $EN_SETFOCUS Then $inputFocus = $inputSerial
        Case GUICtrlGetHandle($inputWorkSlip)
            If $iCode = $EN_SETFOCUS Then $inputFocus = $inputWorkSlip
        Case GUICtrlGetHandle($inputMain)
            If $iCode = $EN_SETFOCUS Then $inputFocus = $inputMain

    $tNMHDR = DllStructCreate($tagNMHDR, $lParam)
    $iIDFrom = DllStructGetData($tNMHDR, "IDFrom")
    $iCode = DllStructGetData($tNMHDR, "Code")
    Switch $iCode
        Case $NM_DBLCLK
            If $iIDFrom = $idListview Then
                _EditListItem(_GUICtrlListView_GetItemText($idListview, _GUICtrlListView_GetHotItem($idListview)))

EndFunc   ;==>WM_COMMAND


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21 minutes ago, Jos said:

Post a runnable replicatie script and the details of the crash as it will be hard to assist without them.

I don't understand what a "runnable replicatie script" is.  Please explain.  When I run the script, the program just hangs and then it self terminate.

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