Get the current mapping of a Game Controller.
char * SDL_GameControllerMapping(SDL_GameController *gamecontroller);
the game controller you want to get the current mapping for
Returns a string that has the controller's mapping or NULL if no mapping is available; call SDL_GetError() for more information.
The returned string must be freed with SDL_free().
Details about mappings are discussed with SDL_GameControllerAddMapping().
This function is available since SDL 2.0.0.