DCOMPOSITION_BORDER_MODE enumeration
Specifies the border mode to use when composing a bitmap or applying a clip with any transform such that the edges of the bitmap or clip are not axis-aligned with integer coordinates.
Syntax
typedef enum { DCOMPOSITION_BORDER_MODE_SOFT = 0, DCOMPOSITION_BORDER_MODE_HARD = 1, DCOMPOSITION_BORDER_MODE_INHERIT = 0xffffffff } DCOMPOSITION_BORDER_MODE;
Constants
- DCOMPOSITION_BORDER_MODE_SOFT
-
Bitmap and clip edges are antialiased.
- DCOMPOSITION_BORDER_MODE_HARD
-
Bitmap and clip edges are aliased. See Remarks.
- DCOMPOSITION_BORDER_MODE_INHERIT
-
Bitmap and clip edges are drawn according to the mode established by the parent visual.
Remarks
The default border mode for any given visual is DCOMPOSITION_BORDER_MODE_INHERIT, which delegates the determination of the border mode to the parent visual. If all visuals in a visual tree specify this mode, the default for all visuals is aliased rendering, which is the fastest mode.
A single visual can have any combination of visual properties. However, if a visual has the following combination of properties, the borders of the visual will default to DCOMPOSITION_BORDER_MODE_HARD.
SetCompositeMode(DCOMPOSITION_COMPOSITE_MODE_DESTINATION_INVERT)SetBorderMode(DCOMPOSITION_BORDER_MODE_SOFT)SetBitmapInterpolationMode(DCOMPOSITION_BITMAP_INTERPOLATION_MODE_NEAREST_NEIGHBOR)
If you want a visual to be drawn with antialiasing, use DCOMPOSITION_BITMAP_INTERPOLATION_MODE_LINEAR for the content of the visual, and DCOMPOSITION_BORDER_MODE_SOFT for the edges.
Requirements
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Minimum supported client |
Windows 8 [desktop apps only] |
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Minimum supported server |
Windows Server 2012 [desktop apps only] |
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Header |
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See also