boolean SDLSetNativeSurface(SDL_Surface **);
SDL_Surface *SDLGetNativeSurface(SDL_Surface *);
SDL_Surface *SDLCreateNativeSurface(int, int, int);
boolean SDLSetNativeSurface(SDL_Surface **);
SDL_Surface *SDLGetNativeSurface(SDL_Surface *);
SDL_Surface *SDLCreateNativeSurface(int, int, int);