| Microsoft DirectX 9.0 |
The IVMRImageCompositor9 interface is implemented by the default compositor for the Video Mixing Renderer Filter 9 (VMR-9). It must also be implemented by any plug-in compositor that an application provides for the VMR-9. The VMR-9 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 IVMRImageCompositor9 interface exposes the following methods.
| Method | Description |
| CompositeImage | Composites the current frames available in each input stream. |
| InitCompositionDevice | Informs the compositor that a new composition target has been created. |
| SetStreamMediaType | Sets the media type for the input stream. |
| TermCompositionDevice | Informs the compositor that the current composition target is being replaced. |
Requirements
Include D3d9.h, Vmr9.h.