IVPBaseConfig Interface
| Microsoft DirectShow 9.0 |
IVPBaseConfig Interface
IVPBaseConfig is implemented on a filter that wraps a hardware device such as a decoder or capture device, if the device has a video port to the graphics adapter. This interface allows the video port to communicate with the Overlay Mixer filter regarding configuration information. The IVPConfig interface derives from this interface.
Applications should never use this interface.
In addition to the methods inherited from IUnknown, the IVPBaseConfig interface exposes the following methods.
| Method | Description |
| GetConnectInfo | Retrieves information about the connections supported by the VPE object. |
| GetMaxPixelRate | Retrieves the maximum pixel rate the device will output for a given width and height. |
| GetOverlaySurface | Queries whether the caller should use the driver's overlay surface, and if so, returns a pointer to the surface. |
| GetVideoFormats | Retrieves the video formats the driver supports. |
| GetVPDataInfo | Retrieves the current video port data information. |
| InformVPInputFormats | Informs the device what video formats the video port supports. |
| SetConnectInfo | Sets the video port connection parameters. |
| SetDDSurfaceKernelHandles | Specifies the kernel-mode handles of the DirectDraw surfaces to be used for the overlay suface. |
| SetDirectDrawKernelHandle | Sets the kernel-mode handle to the DirectDraw object. |
| SetInvertPolarity | Reverses the current polarity the driver uses. |
| SetSurfaceParameters | Informs the device of the layout of the overlay surface. |
| SetVideoFormat | Sets the video format. |
| SetVideoPortID | Specifies the ID of the hardware video port to use. |
Requirements
Header: Include Dvp.h, Vptype.h, Vpconfig.h.
Library: None.
See Also