GetPan
m_MonitorCtrl.GetPan(wBusIn,wBusOut,iPan);
Status = m_PipeOutCtrl.GetPan(wPipe,
ECHOSTATUS GetPan(WORD wBusIn, WORD wBusOut, INT32 &iPan);
ECHOSTATUS GetPan(WORD wPipeOut, WORD wBusOut, INT32 &iPan);