The OpenGL Utility Toolkit (
GLUT), is a window system independent toolkit for writing OpenGL programs.
GLUT|ES is a port of the OpenSource
FreeGLUT implementation for WinCE and Win32 systems based on OpenGL ES. Most of GLUT API v.3 functionnalities are present: window creation, callbacks, menus, timers etc. Only functions that cannot exist with OpenGL ES or are not pertinent have not been ported (like overlays, joysticks on PocketPC, etc.)