IVPConfig Interface (Windows Embedded CE 6.0)

1/6/2010

This interface enables a video port (VP) or overlay mixer filter to communicate with a VP driver (decoder), to set and retrieve configuration information.

This interface assumes that the mixer filter creates the video port.

This interface derives from IVPBaseConfig. See also IVPBaseNotify and IVPNotify.

When to Implement

The Windows Driver Model (WDM) Ksproxy filter implements this interface so you will not need to implement it in most cases.

Implement this interface when you need this functionality on a platform that does not support WDM, or when you need to alter the default behavior.

When to Use

The Overlay Mixer filter uses this interface so you will not need to use it in most cases.

Use this interface when you implement your own overlay mixer filter.

Methods in Vtable Order

The following tables show the methods that appear in the Vtable beneath the standard COM methods inherited from IUnknown.

IVPBaseConfig method	Description
GetConnectInfo	Retrieves connection information structures.
SetConnectInfo	Sets the index for the current video port connection information.
GetVPDataInfo	Retrieves the current video port data information.
GetMaxPixelRate	Retrieves the maximum pixels per second rate for a given width and height.
InformVPInputFormats	Informs the device what video formats the video port supports.
GetVideoFormats	Retrieves the video formats the decoder supports.
SetVideoFormat	Sets the format that the video will use.
SetInvertPolarity	Reverses the current polarity the decoder uses.
GetOverlaySurface	Determines whether the overlay mixer should use the driver's overlay surface and if so retrieves a pointer to the surface.
SetDirectDrawKernelHandle	Sets the DirectDraw kernel handle for the decoder's minidriver to use.
SetVideoPortID	Sets the port ID that the video will use.
SetDDSurfaceKernelHandles	Sets the kernel handles that the DirectDraw surface will use.
SetSurfaceParameters	Tells the capture driver about the surface created on its behalf by the Overlay Mixer or VBI surface filter.

IVPConfig method	Description
IsVPDecimationAllowed	Determines if scaling at the video port is possible.
SetScalingFactors	Sets the factors by which the decoder should scale the video stream.

Requirements

Windows Embedded CE	Windows CE 2.12 and later
Note	Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements For more information, see Setting Up the Build Environment

See Also

Reference

DirectShow Interfaces