Microsoft DirectX 9.0

IDxtAlphaSetter Interface

The IDxtAlphaSetter interface sets properties on the Alpha Setter effect.

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

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

Method Description
get_Alpha Retrieves the alpha value for the entire image.
get_AlphaRamp Retrieves the alpha ramp property.
put_Alpha Specifies the alpha value for the entire image.
put_AlphaRamp Specifies the alpha ramp property.


Header: Include Qedit.h. This header file is not compatible with Microsoft® Direct3D® headers later than version 7.

Library: Use strmiids.lib.