Configure decoding channel.
BOOL NET_DVR_MatrixSetDecChanCfg( LONG lUserID, DWORD dwDecChan, LPNET_DVR_MATRIX_DECCHAN_CONTROL lpInter )
[IN] Value returned by NET_DVR_Login_V40.
[IN] Decoding channel No.
[IN] Parameters of decoding channel scaling control, see details in NET_DVR_MATRIX_DECCHAN_CONTROL.
Return TRUE for success and FALSE for failure. If FALSE is returned, you can call NET_DVR_GetLastError to get the error code.