IDirectDrawVideoPort::GetVideoSignalStatus

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The IDirectDrawVideoPort::GetVideoSignalStatusmethod 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:

DDERR_INVALIDOBJECT

DDERR_INVALIDPARAMS

DDERR_UNSUPPORTED

Requirements

Runs on	Versions	Declared in	Link to
Windows CE OS	2.12 or later. Version 2.12 requires DXPAK 1.0 or later.	dvp.h	ddraw.lib