sdlGetSurfaceColorKey function surface

bool sdlGetSurfaceColorKey(
  1. Pointer<SdlSurface> surface,
  2. 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.

\threadsafety It is safe to call this function from any thread.

\since This function is available since SDL 3.2.0.

\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 = _libSdl
      .lookupFunction<
        Uint8 Function(Pointer<SdlSurface> surface, Pointer<Uint32> key),
        int Function(Pointer<SdlSurface> surface, Pointer<Uint32> key)
      >('SDL_GetSurfaceColorKey');
  return sdlGetSurfaceColorKeyLookupFunction(surface, key) == 1;
}