NAME

       SDL_ISPIXELFORMAT_ALPHA - A macro to determine if an SDL_PixelFormat
        has an alpha channel.

HEADER FILE

       Defined in SDL3/SDL_pixels.h

SYNOPSIS

       #include "SDL3/SDL.h"

       #define SDL_ISPIXELFORMAT_ALPHA(format)   .BI ((SDL_ISPIXELFORMAT_PACKED(format)&&.BI      ((SDL_PIXELORDER(format) == SDL_PACKEDORDER_ARGB) || .BI (SDL_PIXELORDER(format)==SDL_PACKEDORDER_RGBA)||.BI       (SDL_PIXELORDER(format) == SDL_PACKEDORDER_ABGR) || .BI (SDL_PIXELORDER(format)==SDL_PACKEDORDER_BGRA)))||.BI     (SDL_ISPIXELFORMAT_ARRAY(format) && .BI ((SDL_PIXELORDER(format)==SDL_ARRAYORDER_ARGB)||.BI       (SDL_PIXELORDER(format) == SDL_ARRAYORDER_RGBA) || .BI (SDL_PIXELORDER(format)==SDL_ARRAYORDER_ABGR)||.BI       (SDL_PIXELORDER(format) == SDL_ARRAYORDER_BGRA))))

DESCRIPTION

       Note that this macro double-evaluates its parameter, so do not use expressions with side-effects here.

RETURN VALUE

       Returns true if the format has alpha, false otherwise.

THREAD SAFETY

       It is safe to call this macro from any thread.

AVAILABILITY

       This macro is available since SDL 3.2.0.

Simple Directmedia Layer                            SDL 3.2.8                         SDL_ISPIXELFORMAT_ALPHA(3)