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| Microsoft DirectShow 9.0 |
IVMRImageCompositor Interface
The IVMRImageCompositor interface is implemented by the default compositor for the Video Mixing Renderer Filter 7 (VMR-7). It must also be implemented by any plug-in compositor that an application provides for the VMR-7. The VMR-7 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.
For the VMR-9, use the IVMRImageCompositor9 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. |
Requirements
Header: Declared in Strmif.h; include Dshow.h.
Library: Use Strmiids.lib.