Update the states of all joysticks.
*
This function is used internally by SFML, so you normally don't have to
call it explicitely.
*
However, you may need to call it if you have no window yet (or no window
at all): in this case the joysticks states are not updated automatically.
Update the states of all joysticks. * This function is used internally by SFML, so you normally don't have to call it explicitely. * However, you may need to call it if you have no window yet (or no window at all): in this case the joysticks states are not updated automatically.