Public Function ShowOpen(MehWnd As Long, _
FileOpen As String, _
Optional Title As String = "打开:", _
Optional Filter As String = vbNullChar + vbNullChar, _
Optional FilterIndex As Long = 0, _
Optional StartDir As String = vbNullChar, _
Optional flags As Long = OFN_ShowHelp Or OFN_EnableHook Or OFN_Explorer)