EN
Il contenuto non è disponibile nella lingua di destinazione, ma solo in inglese.

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]

Minimum supported server

Windows Server 2008 [desktop apps | Windows Store apps]

Header

Wincodec.h

IDL

Wincodec.idl

 

 

Aggiunte alla community

AGGIUNGI
Mostra:
© 2014 Microsoft