DOKK / manpages / debian 13 / libsdl3-doc / SDL_ALPHA_OPAQUE.3.en
SDL_ALPHA_OPAQUE(3) SDL3 FUNCTIONS SDL_ALPHA_OPAQUE(3)

SDL_ALPHA_OPAQUE - A fully opaque 8-bit alpha value.

Defined in SDL3/SDL_pixels.h

#include "SDL3/SDL.h"
#define SDL_ALPHA_OPAQUE 255

This macro is available since SDL 3.2.0.

(3), SDL_ALPHA_TRANSPARENT(3)

SDL 3.2.10 Simple Directmedia Layer