*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
{
gltrackball_mousewheel (cs->trackball, event->xbutton.button, 5,
!event->xbutton.state);
{
gltrackball_mousewheel (cs->trackball, event->xbutton.button, 5,
!event->xbutton.state);