pub unsafe extern "C" fn SDL_JoystickGetSerial(
    joystick: *mut SDL_Joystick
) -> *const c_char
Expand description

Get the serial number of an opened joystick, if available.

Returns the serial number of the joystick, or NULL if it is not available.

\param joystick the SDL_Joystick obtained from SDL_JoystickOpen() \returns the serial number of the selected joystick, or NULL if unavailable.

\since This function is available since SDL 2.0.14.