fltk1

The Fast Light Tool Kit ("FLTK", pronounced "fulltick") is a LGPL'd C++ graphical user interface toolkit for X (UNIX(R)), OpenGL(R), and Microsoft(R) Windows(R) NT 4.0, 95, or 98. It was originally developed by Mr. Bill Spitzak and is currently maintained by a small group of developers across the world with a central repository in the US.