GD_SPDIF_STATUS_NOCHANGE
if ( byGDSpdifStatus != GD_SPDIF_STATUS_NOCHANGE )
byNewStatus = GD_SPDIF_STATUS_NOCHANGE;
byNewStatus = GD_SPDIF_STATUS_NOCHANGE;
m_pDspCommPage->byGDSpdifStatus = GD_SPDIF_STATUS_NOCHANGE;