Function fermium::gamecontroller::SDL_GameControllerMappingForDeviceIndex

pub unsafe extern "C" fn SDL_GameControllerMappingForDeviceIndex(
    joystick_index: c_int
) -> *mut c_char

Get the mapping of a game controller.

This can be called before any controllers are opened.

Returns: the mapping string.

Must be freed with SDL_free.

Returns NULL if no mapping is available.