Microsoft DirectX 9.0

IDxtCompositor Interface

The IDxtCompositor interface sets properties on the Compositor transition.

This interface is used internally by DirectShow Editing Services (DES) when it renders the Compositor transition. DES applications do not have to use this interface. To set the properties on a transition in DES, use the IPropertySetter interface.

The Compositor transition composites a foreground image onto a background image. The source rectangle defines the section of the foreground image that is composited. The destination rectangle defines the section of the background image that receives the foreground image. The following diagram illustrates these rectangles.

Compositor Transition Properties

In addition to the methods inherited from IDXEffect, the IDxtCompositor interface exposes the following methods.

Method Description
get_Height Retrieves the height of the target rectangle.
get_OffsetX Retrieves the horizontal offset of the target rectangle.
get_OffsetY Retrieves the vertical offset of the target rectangle.
get_SrcHeight Retrieves the height of the source rectangle.
get_SrcWidth Retrieves the width of the source rectangle.
get_SrcOffsetX Retrieves the horizontal offset of the source rectangle.
get_SrcOffsetY Retrieves the vertical offset of the source rectangle.
get_Width Retrieves the width of the target rectangle.
put_Height Specifies the height of the target rectangle.
put_OffsetX Specifies the horizontal offset of the target rectangle.
put_OffsetY Specifies the vertical offset of the target rectangle.
put_SrcHeight Specifies the height of the source rectangle.
put_SrcWidth Specifies the width of the source rectangle.
put_SrcOffsetX Specifies the horizontal offset of the source rectangle.
put_SrcOffsetY Specifies the vertical offset of the source rectangle.
put_Width Specifies the width of the target rectangle.