freeglut_return_if_fail( fgStructure.Window != NULL );
freeglut_return_if_fail( FETCH_WCB( *( fgStructure.Window ), Joystick ) );
fgJoystickPollWindow( fgStructure.Window );
freeglut_return_if_fail( fgStructure.Window != NULL );
freeglut_return_if_fail( FETCH_WCB( *( fgStructure.Window ), Joystick ) );
fgJoystickPollWindow( fgStructure.Window );