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The GetVideoSignalStatuscallback function indicates whether or not the video port is receiving a good signal.
DWORD __stdcall GetVideoSignalStatus( LPDDHAL_GETVPORTSIGNALDATA pgvpsd );
Parameters
- pgvpsd
- Pointer to a
DDHAL_GETVPORTSIGNALDATAstructure that contains the signal
status information for the specified video port.
Return Values
Returns one of the following values:
- DDHAL_DRIVER_HANDLED
- DDHAL_DRIVER_NOTHANDLED
Remarks
If the video port is receiving a good signal, the HAL should set the dwStatus member of the DDHAL_GETVPORTSIGNALDATAstructure to DDVPSQ_SIGNALOK; otherwise, it should set dwStatus to DDVPSQ_NOSIGNAL.
Last updated on Tuesday, July 13, 2004