13 __glutCreateMenuWithExit
16 __glutCreateWindowWithExit
26 glutExtensionSupported
45 glutInitWindowPosition
57 glutOverlayDisplayFunc
61 glutPostOverlayRedisplay
63 glutPostWindowOverlayRedisplay
64 glutPostWindowRedisplay
78 glutSetupVideoResizing
90 glutSpaceballButtonFunc
91 glutSpaceballMotionFunc
92 glutSpaceballRotateFunc
121 glutBitmapHelvetica10
122 glutBitmapHelvetica18
123 glutBitmapTimesRoman24