Microsoft DirectX 8.0 |
Sets the alpha bits on a video image.
Class ID (CLSID): 506D89AE-909A-44f7-9444-ABD575896E35
CLSID Variable Name: CLSID_DxtAlphaSetter
Properties
Property Type Default Description Alpha BYTE -1 Sets the alpha for the entire image. AlphaRamp double -1.0 Sets the alpha as a percentage of the original alpha value.
Remarks
A property with a negative value is ignored. Only one property can have a non-negative value. The Alpha property specifies a constant alpha value for every pixel in the image. This property overwrites the alpha values from the original image. The AlphaRamp property specifies each pixel's alpha value as a percentage of the pixel's original value, from 0.0 to 1.0.
See Also