Function sdl2_sys::SDL_GameControllerMappingForDeviceIndex

source ยท 
pub unsafe extern "C" fn SDL_GameControllerMappingForDeviceIndex(
    joystick_index: c_int,
) -> *mut c_char
Expand description

Get the mapping of a game controller.

This can be called before any controllers are opened.

\param joystick_index the device_index of a device, from zero to SDL_NumJoysticks()-1 \returns the mapping string. Must be freed with SDL_free(). Returns NULL if no mapping is available.

\since This function is available since SDL 2.0.9.