WICBitmapAlphaChannelOption enumeration (wincodec.h)

Specifies the desired alpha channel usage.

Syntax

typedef enum WICBitmapAlphaChannelOption {
  WICBitmapUseAlpha = 0,
  WICBitmapUsePremultipliedAlpha = 0x1,
  WICBitmapIgnoreAlpha = 0x2,
  WICBITMAPALPHACHANNELOPTIONS_FORCE_DWORD = 0x7fffffff
} ;

Constants

WICBitmapUseAlpha Value: 0 Use alpha channel.
WICBitmapUsePremultipliedAlpha Value: 0x1 Use a pre-multiplied alpha channel.
WICBitmapIgnoreAlpha Value: 0x2 Ignore alpha channel.
WICBITMAPALPHACHANNELOPTIONS_FORCE_DWORD Value: 0x7fffffff Sentinel value.

Requirements

Requirement	Value
Minimum supported client	Windows XP with SP2, Windows Vista [desktop apps | UWP apps]
Minimum supported server	Windows Server 2008 [desktop apps | UWP apps]
Header	wincodec.h