# SDL_ALPHA_OPAQUE A fully opaque 8-bit alpha value. ## Header File Defined in [<SDL3/SDL_pixels.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_pixels.h) ## Syntax ```c #define SDL_ALPHA_OPAQUE 255 ``` ## Version This macro is available since SDL 3.2.0. ## See Also - [SDL_ALPHA_TRANSPARENT](SDL_ALPHA_TRANSPARENT) ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryPixels](CategoryPixels)