IDirectDrawVideoPort::GetVideoSignalStatus

The IDirectDrawVideoPort::GetVideoSignalStatus method retrieves the status of the video signal currently being presented to the video port.

HRESULT GetVideoSignalStatus(

LPDWORD lpdwStatus

);

Parameters

lpdwStatus

Address of a variable that will contain a return code indicating the quality of the video signal at the video port. The value will be set to one of the following codes.

DDVPSQ_NOSIGNAL
	No video signal is present at the video port.
DDVPSQ_SIGNALOK
	A valid video signal is present at the video port.

Return Values

If the method succeeds, the return value is DD_OK.

If the method fails, the return value may be one of the following error values: