IMFPMediaItem::HasVideo method (mfplay.h)

Artikel
12/05/2018

[The feature associated with this page, MFPlay, is a legacy feature. It has been superseded by MediaPlayer and IMFMediaEngine. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer and IMFMediaEngine instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

Queries whether the media item contains a video stream.

Syntax

HRESULT HasVideo(
  [out] BOOL *pfHasVideo,
  [out] BOOL *pfSelected
);

Parameters

[out] pfHasVideo

Receives the value TRUE if the media item contains at least one video stream, or FALSE otherwise.

[out] pfSelected

Receives the value TRUE if at least one video stream is selected, or FALSE otherwise.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

To select or deselect streams before playback starts, call IMFPMediaItem::SetStreamSelection.

Requirements

Requirement	Value
Minimum supported client	Windows 7 [desktop apps only]
Minimum supported server	Windows Server 2008 R2 [desktop apps only]
Target Platform	Windows
Header	mfplay.h

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