| Microsoft DirectX 8.1 (C++) |
IVPConfig must be implemented by any filter that wraps a hardware decoder with a video port. This enables the Overlay Mixer, through its IVPNotify interface, to set and retrieve configuration information on the video port regarding the video memory on the display adapter. This interface derives from IVPBaseConfig. See also IVPBaseNotify and IVPNotify2.
Applications never use this interface.
Requirements
Requires Dvp.h, Vptype.h, Vpconfig.h.
In addition to the methods inherited from IUnknown and IVPBaseConfig, the IVPConfig interface exposes the following methods.
| Method | Description |
| IsVPDecimationAllowed | Given the context, retrieves whether scaling at the video port is possible. |
| SetScalingFactors | Sets the factors by which the decoder should scale the video stream. |