WICBitmapAlphaChannelOption enumeration
Specifies the desired alpha channel usage.
Syntax
typedef enum WICBitmapAlphaChannelOption { WICBitmapUseAlpha = 0x00000000, WICBitmapUsePremultipliedAlpha = 0x00000001, WICBitmapIgnoreAlpha = 0x00000002, WICBITMAPALPHACHANNELOPTIONS_FORCE_DWORD = CODEC_FORCE_DWORD } WICBitmapAlphaChannelOption;
Constants
- WICBitmapUseAlpha
-
Use alpha channel.
- WICBitmapUsePremultipliedAlpha
-
Use a pre-multiplied alpha channel.
- WICBitmapIgnoreAlpha
-
Ignore alpha channel.
- WICBITMAPALPHACHANNELOPTIONS_FORCE_DWORD
-
Sentinel value.
Requirements
|
Minimum supported client |
Windows XP with SP2, Windows Vista [desktop apps | Windows Store apps] |
|---|---|
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Minimum supported server |
Windows Server 2008 [desktop apps | Windows Store apps] |
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Header |
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IDL |
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