Function sdl2_sys::SDL_JoystickNumButtons

pub unsafe extern "C" fn SDL_JoystickNumButtons(
    joystick: *mut SDL_Joystick
) -> c_int

Get the number of buttons on a joystick.

\param joystick an SDL_Joystick structure containing joystick information \returns the number of buttons 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_JoystickGetButton \sa SDL_JoystickOpen