SDL_SetSurfaceColorKey - Set the color key (transparent pixel) in a surface.

       This function is available since SDL 3.2.0.

       The  color  key defines a pixel value that will be treated as transparent in a blit. For example, one can
       use this to specify that cyan pixels should be considered transparent, and therefore not rendered.

       It is a pixel of the format used by the surface, as generated by

       SDL_MapRGB ().

surface
              the SDL_Surface
               structure to update.

       enabled
              true to enable color key, false to disable color key.

       key    the transparent pixel.

       Defined in SDL3/SDL_surface.h

       SDL_SetSurfaceColorKey - Set the color key (transparent pixel) in a surface.

       Returns true on success or false on failure; call

       SDL_GetError () for more information.

•(3), SDL_GetSurfaceColorKey(3), •(3), SDL_SetSurfaceRLE(3), •(3), SDL_SurfaceHasColorKey(3)

Simple Directmedia Layer                           SDL 3.2.10                          SDL_SetSurfaceColorKey(3)

#include"SDL3/SDL.h"boolSDL_SetSurfaceColorKey(SDL_Surface*surface,boolenabled,Uint32key);

       This function is not thread safe.