| Microsoft DirectX 9.0 |
The IVMRVideoStreamControl interface is implemented on each input pin of the Video Mixing Renderer Filter 7 (VMR-7). The interface operates on the input stream represented by the pin. This interface is used by upstream filters (typically decoders) to get or set the active state of individual streams, or the source color key for the composited image. Applications in general should not use this interface.
The VMR-9 input pins expose the IVMRVideoStreamControl9 interface.
In addition to the methods inherited from IUnknown, the IVMRVideoStreamControl interface exposes the following methods:
| Method | Description |
| GetColorKey | Retrieves the source color key currently set for this stream. |
| GetStreamActiveState | Retrieves the state of the stream. |
| SetColorKey | Sets the source color key that the VMR will use when compositing the video image. |
| SetStreamActiveState | Activates or inactivates an input stream. |