IMFVideoDisplayControl interface
Controls how the Enhanced Video Renderer (EVR) displays video.
The EVR presenter implements this interface. To get a pointer to the interface, call IMFGetService::GetService. The service identifier is GUID MR_VIDEO_RENDER_SERVICE. Call GetService on any of the following objects:
- The Media Session, if the topology contains an instance of the EVR.
- The EVR media sink.
- The DirectShow EVR filter.
- The EVR presenter.
Methods
The IMFVideoDisplayControl interface has these methods.
| Method | Description |
|---|---|
| IMFVideoDisplayControl::GetAspectRatioMode | Queries how the enhanced video renderer (EVR) handles the aspect ratio of the source video. |
| IMFVideoDisplayControl::GetBorderColor | Gets the border color for the video. |
| IMFVideoDisplayControl::GetCurrentImage | Gets a copy of the current image being displayed by the video renderer. |
| IMFVideoDisplayControl::GetFullscreen | Queries whether the enhanced video renderer (EVR) is currently in full-screen mode. |
| IMFVideoDisplayControl::GetIdealVideoSize | Gets the range of sizes that the enhanced video renderer (EVR) can display without significantly degrading performance or image quality. |
| IMFVideoDisplayControl::GetNativeVideoSize | Gets the size and aspect ratio of the video, prior to any stretching by the video renderer. |
| IMFVideoDisplayControl::GetRenderingPrefs | Gets various video rendering settings. |
| IMFVideoDisplayControl::GetVideoPosition | Gets the source and destination rectangles for the video. |
| IMFVideoDisplayControl::GetVideoWindow | Gets the clipping window for the video. |
| IMFVideoDisplayControl::RepaintVideo | Repaints the current video frame. Call this method whenever the application receives a WM_PAINT message. |
| IMFVideoDisplayControl::SetAspectRatioMode | Specifies how the enhanced video renderer (EVR) handles the aspect ratio of the source video. |
| IMFVideoDisplayControl::SetBorderColor | Sets the border color for the video. |
| IMFVideoDisplayControl::SetFullscreen | Sets or unsets full-screen rendering mode. |
| IMFVideoDisplayControl::SetRenderingPrefs | Sets various preferences related to video rendering. |
| IMFVideoDisplayControl::SetVideoPosition | Sets the source and destination rectangles for the video. |
| IMFVideoDisplayControl::SetVideoWindow | Sets the clipping window for the video. |
Requirements
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Target Platform | Windows |
| Header | evr.h |