IMFClockStateSink interface (mfidl.h)

Receives state-change notifications from the presentation clock.

Inheritance

The IMFClockStateSink interface inherits from the IUnknown interface. IMFClockStateSink also has these types of members:

Methods

The IMFClockStateSink interface has these methods.

 
IMFClockStateSink::OnClockPause

Called when the presentation clock pauses.
IMFClockStateSink::OnClockRestart

Called when the presentation clock restarts from the same position while paused.
IMFClockStateSink::OnClockSetRate

Called when the rate changes on the presentation clock.
IMFClockStateSink::OnClockStart

Called when the presentation clock starts.
IMFClockStateSink::OnClockStop

Called when the presentation clock stops.

Remarks

To receive state-change notifications from the presentation clock, implement this interface and call IMFPresentationClock::AddClockStateSink on the presentation clock.

This interface must be implemented by:

  • Presentation time sources. The presentation clock uses this interface to request change states from the time source.
  • Media sinks. Media sinks use this interface to get notifications when the presentation clock changes.
Other objects that need to be notified can implement this interface.

Requirements

   
Minimum supported client Windows Vista [desktop apps | UWP apps]
Minimum supported server Windows Server 2008 [desktop apps | UWP apps]
Target Platform Windows
Header mfidl.h

See also

IMFPresentationTimeSource

Media Foundation Interfaces

Presentation Clock