SetPan
status_t SetPan(float pan, bigtime_t duration = 0);
m_MonitorCtrl.SetPan(wBusIn,wBusOut,iPan);
Status = m_PipeOutCtrl.SetPan(wPipe,
ECHOSTATUS SetPan(WORD wBusIn, WORD wBusOut, INT32 iPan);
ECHOSTATUS SetPan(WORD wPipeOut, WORD wBusOut, INT32 iPan);
error = SetPan(attributes[i].value, attributes[i].duration);
status_t SetPan(float pan, bigtime_t duration);
fSound->SetPan(pos / 100.0, ramp);
err = snd.SetPan(pan / 100.0);