Microsoft DirectX 9.0 SDK Update (Summer 2004)

^{IReferenceClock Interface}

The IReferenceClock interface represents a system reference clock. The DirectMusic master clock and a port's latency clock implement this interface.

In addition to the methods inherited from IUnknown, the IReferenceClock interface exposes the following methods.

Method	Description
GetTime	Retrieves the current time.
AdviseTime	Requests an asynchronous notification that a time has elapsed.
AdvisePeriodic	Requests an asynchronous, periodic notification that a duration has elapsed.
Unadvise	Cancels a request for notification.

Requirements

  Header: Declared in dmusicc.h.

See Also

• DirectMusic Interfaces
• IDirectMusic8::GetMasterClock
• IDirectMusicPort8::GetLatencyClock
• Timing

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