IVMRAspectRatioControl interface controls whether the Video Mixing Renderer Filter 7 (VMR-7) preserves the aspect ratio of the source video. This interface is available when the VMR-7 is operating in either windowed or windowless modes. In windowless mode, the same functionality is provided by the IVMRWindowlessControl interface.
The IVMRAspectRatioControl interface inherits from the IUnknown interface. IVMRAspectRatioControl also has these types of members:
The IVMRAspectRatioControl interface has these methods.
|IVMRAspectRatioControl::GetAspectRatioMode||The GetAspectRatioMode method queries whether the VMR will preserve the aspect ratio of the source video.|
|IVMRAspectRatioControl::SetAspectRatioMode||The SetAspectRatioMode method specifies whether the VMR will preserve the aspect ratio of the source video.|
|Minimum supported client||Windows XP with SP1 [desktop apps only]|
|Minimum supported server||Windows Server 2003 [desktop apps only]|
|Header||strmif.h (include Dshow.h)|