| Microsoft DirectX 8.1 (C++) |
This topic applies to Windows XP Home Edition and Windows XP Professional only.
The IVMRImageCompositor interface is implemented by the default compositor and must also be implemented by a plug-in compositor provided by an application. The VMR calls the methods on this interface to inform the Compositor that it should composite the incoming video frames into a single output frame. Applications do not use this interface.
In addition to the methods inherited from IUnknown, the IVMRImageCompositor interface exposes the following methods.
| Method | Description |
| CompositeImage | Composites the current frames available in each input stream. |
| InitCompositionTarget | Informs the compositor that a new composition target has been created. |
| SetStreamMediaType | Sets the media type for the input stream. |
| TermCompositionTarget | Informs the compositor that the current composition target is being replaced. |