glutForceJoystickFunc  -  forces current window's joystick
       callback to be called.

SYNTAX

       void glutForceJoystickFunc(void);

DESCRIPTION

       glutForceJoystickFunc forces the current window's joystick
       callback  to  be  called,  reporting  the  latest joystick
       state.

       The joystick callback is called either due to  polling  of
       the joystick at the uniform timer interval set by glutJoy-
       stickFunc's pollInterval (specified in milliseconds) or in
       response   to   calling   glutForceJoystickFunc.   If  the
       pollInterval is non-positive, no joystick polling is  per-
       formed  and  the GLUT application must frequently (usually
       from an idle callback) call glutForceJoystickFunc.

       The joystick callback will be called once (if one  exists)
       for  each time glutForceJoystickFunc is called.  The call-
       back is  called  from  glutJoystickFunc.   That  is,  when
       glutJoystickFunc  returns,  the callback will have already
       happened.

GLUT IMPLEMENTATION NOTES FOR X11

       The GLUT 3.7 implementation of GLUT for X11  supports  the
       joystick  API,  but  not  actual joystick input.  A future
       implementation of GLUT for X11 may add joystick support.

GLUT IMPLEMENTATION NOTES FOR WIN32

       The GLUT 3.7 implementation of GLUT for Win32 supports the
       joystick  API  and joystick input, but does so through the
       dated joySetCapture and joyGetPosEx Win32 Multimedia  API.
       The  GLUT 3.7 joystick support for Win32 has all the limi-
       tations of the Win32 Multimedia API joystick  support.   A
       future  implementation of GLUT for Win32 may use DirectIn-
       put.

SEE ALSO

       glutJoystickFunc

AUTHOR

       Mark J. Kilgard (mjk@nvidia.com)