sdlGetColorKey function
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 -1.
\param surface the SDL_Surface structure to query \param key a pointer filled in with the transparent pixel \returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.
\since This function is available since SDL 2.0.0.
\sa SDL_BlitSurface \sa SDL_SetColorKey
extern DECLSPEC int SDLCALL SDL_GetColorKey(SDL_Surface * surface, Uint32 * key)
Implementation
int sdlGetColorKey(Pointer<SdlSurface> surface, Pointer<Uint32> key) {
final sdlGetColorKeyLookupFunction = libSdl2.lookupFunction<
Int32 Function(Pointer<SdlSurface> surface, Pointer<Uint32> key),
int Function(
Pointer<SdlSurface> surface, Pointer<Uint32> key)>('SDL_GetColorKey');
return sdlGetColorKeyLookupFunction(surface, key);
}