sdlGetSurfaceColorKey function

bool sdlGetSurfaceColorKey(Pointer<SdlSurface> surface, Pointer<Uint32> key)

Get the color key (transparent pixel) for a surface.

The color key is a pixel of the format used by the surface, as generated by SDL_MapRGB().

If the surface doesn't have color key enabled this function returns false.

\param surface the SDL_Surface structure to query. \param key a pointer filled in with the transparent pixel. \returns true on success or false on failure; call SDL_GetError() for more information.

\since This function is available since SDL 3.1.3.

\sa SDL_SetSurfaceColorKey \sa SDL_SurfaceHasColorKey

extern SDL_DECLSPEC bool SDLCALL SDL_GetSurfaceColorKey(SDL_Surface *surface, Uint32 *key)

Implementation

bool sdlGetSurfaceColorKey(Pointer<SdlSurface> surface, Pointer<Uint32> key) {
  final sdlGetSurfaceColorKeyLookupFunction = libSdl3.lookupFunction<
      Uint8 Function(Pointer<SdlSurface> surface, Pointer<Uint32> key),
      int Function(Pointer<SdlSurface> surface,
          Pointer<Uint32> key)>('SDL_GetSurfaceColorKey');
  return sdlGetSurfaceColorKeyLookupFunction(surface, key) == 1;
}