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MFP_RATE_SET_EVENT structure (mfplay.h)

[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 It has been superseded by MediaPlayer and IMFMediaEngine.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.]

Event structure for the MFP_EVENT_TYPE_RATE_SET event. This event is sent when the IMFPMediaPlayer::SetRate method completes.

Syntax

typedef struct MFP_RATE_SET_EVENT {
  MFP_EVENT_HEADER header;
  IMFPMediaItem    *pMediaItem;
  float            flRate;
} MFP_RATE_SET_EVENT;

Members

header

MFP_EVENT_HEADER structure that contains data common to all IMFPMediaPlayer events.

pMediaItem

Pointer to the IMFPMediaItem interface of the current media item.

flRate

New playback rate. This value can differ from the requested rate.

Remarks

To get a pointer to this structure, cast the pEventHeader parameter of the IMFPMediaPlayerCallback::OnMediaPlayerEvent method. You can use the MFP_GET_RATE_SET_EVENT macro for this purpose.

Requirements

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

See also

IMFPMediaPlayer::SetRate

IMFPMediaPlayerCallback

Media Foundation Structures

Using MFPlay for Audio/Video Playback