IMFShutdown Interface
Exposed by some Media Foundation objects that must be explicitly shut down.
Mitglieder
IMFShutdownSchnittstelle erbt von der IUnknown-Schnittstelle. IMFShutdown umfasst auch die folgenden Typen von Mitgliedern:
- Methoden
Methoden
IMFShutdownSchnittstelle umfasst die folgenden Methoden.
| Methode | Beschreibung |
|---|---|
| GetShutdownStatus | Queries the status of a prior call to the Shutdown method. |
| Shutdown | Shuts down a Media Foundation object and releases all resources associated with the object. |
Hinweise
The following types of object expose IMFShutdown:
- Content enablers (IMFContentEnabler interface)
- Input trust authorities (IMFInputTrustAuthority interface)
- Presentation clocks (IMFPresentationClock interface)
- Asynchronous MFTs
Any component that creates one of these objects is responsible for calling Shutdown on the object before releasing the object. Typically, applications do not create any of these objects directly, so it is not usually necessary to use this interface in an application.
To obtain a pointer to this interface, call QueryInterface on the object.
If you are implementing a custom object, your object can expose this interface, but only if you can guarantee that your application will call Shutdown.
Media sources, media sinks, and synchronous MFTs should not implement this interface, because the Media Foundation pipeline will not call Shutdown on these objects. Asynchronous MFTs must implement this interface.
This interface is not related to the MFShutdown function, which shuts down the Media Foundation platform, as described in Initializing Media Foundation.
Some Media Foundation interfaces define a Shutdown method, which serves the same purpose as IMFShutdown::Shutdown but is not directly related to it.
Anforderungen
Mindestens unterstützter Client |
Windows Vista |
Mindestens unterstützter Server |
Windows Server 2008 |
Header |
Mfidl.h |
Bibliothek |
Mfuuid.lib |