WICBitmapAlphaChannelOption enumeration (wincodec.h)

Specifies the desired alpha channel usage.

Syntax

typedef enum WICBitmapAlphaChannelOption {
  WICBitmapUseAlpha,
  WICBitmapUsePremultipliedAlpha,
  WICBitmapIgnoreAlpha,
  WICBITMAPALPHACHANNELOPTIONS_FORCE_DWORD
} ;

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 | UWP apps]
Minimum supported server Windows Server 2008 [desktop apps | UWP apps]
Header wincodec.h