SDL_JoystickUpdate - Updates the state of all joysticks

       Updates  the  state(position,  buttons, etc.) of all open joysticks. If joystick events have been enabled
       with SDL_JoystickEventState then this is called automatically in the event loop.

       SDL_JoystickUpdate - Updates the state of all joysticks

SDL_JoystickEventState

SDL                                          Tue 11 Sep 2001, 23:00                        SDL_JoystickUpdate(3)

#include"SDL.h"voidSDL_JoystickUpdate(void);