Package com.ms.com.directX Previous
Previous
Microsoft Packages
Microsoft Packages
Index
Index
Next
Next

DDFXALPHACAPS_ Values

Use with the dwFXAlphaCaps field of the ddCaps class to specify driver-specific alpha capabilities.

DDFXALPHACAPS_BLTALPHAEDGEBLEND
Supports alpha blending around the edge of a source color-keyed surface. Used for blit operations.
DDFXALPHACAPS_BLTALPHAPIXELS
Supports alpha information in pixel format. The bit depth of alpha information in the pixel format can be 1, 2, 4, or 8. The alpha value becomes more opaque as the alpha value increases. Regardless of the depth of the alpha information, 0 is always the fully transparent value. Used for blit operations.
DDFXALPHACAPS_BLTALPHAPIXELSNEG
Supports alpha information in pixel format. The bit depth of alpha information in the pixel format can be 1, 2, 4, or 8. The alpha value becomes more transparent as the alpha value increases. Regardless of the depth of the alpha information, 0 is always the fully opaque value. This flag can be used only if DDCAPS_ALPHA is set. Used for blit operations.
DDFXALPHACAPS_BLTALPHASURFACES
Supports alpha-only surfaces. The bit depth of an alpha-only surface can be 1, 2, 4, or 8. The alpha value becomes more opaque as the alpha value increases. Regardless of the depth of the alpha information, 0 is always the fully transparent value. Used for blit operations.
DDFXALPHACAPS_BLTALPHASURFACESNEG
Indicates that the alpha channel becomes more transparent as the alpha value increases. The depth of the alpha channel data can be 1, 2, 4, or 8. Regardless of the depth of the alpha information, 0 is always the fully opaque value. This flag can be set only if DDFXCAPS_ALPHASURFACES has been set. Used for blit operations.
DDFXALPHACAPS_OVERLAYALPHAEDGEBLEND
Supports alpha blending around the edge of a source color-keyed surface. Used for overlays.
DDFXALPHACAPS_OVERLAYALPHAPIXELS
Supports alpha information in pixel format. The bit depth of alpha information in pixel format can be 1, 2, 4, or 8. The alpha value becomes more opaque as the alpha value increases. Regardless of the depth of the alpha information, 0 is always the fully transparent value. Used for overlays.
DDFXALPHACAPS_OVERLAYALPHAPIXELSNEG
Supports alpha information in pixel format. The bit depth of alpha information in pixel format can be 1, 2, 4, or 8. The alpha value becomes more transparent as the alpha value increases. Regardless of the depth of the alpha information, 0 is always the fully opaque value. This flag can be used only if DDFXCAPS_ALPHAPIXELS has been set. Used for overlays.
DDFXALPHACAPS_OVERLAYALPHASURFACES
Supports alpha-only surfaces. The bit depth of an alpha-only surface can be 1, 2, 4, or 8. The alpha value becomes more opaque as the alpha value increases. Regardless of the depth of the alpha information, 0 is always the fully transparent value. Used for overlays.
DDFXALPHACAPS_OVERLAYALPHASURFACESNEG
Indicates that the alpha channel becomes more transparent as the alpha value increases. The depth of the alpha channel data can be 1, 2, 4, or 8. Regardless of the depth of the alpha information, 0 is always the fully opaque value. This flag can be used only if DDFXCAPS_ALPHASURFACES has been set. Used for overlays.


Top© 1996 Microsoft Corporation. All rights reserved.