fltk: fltk (The Fast Light Tool Kit) fltk: fltk: The Fast Light Tool Kit ("FLTK", pronounced "fulltick") is a a cross- fltk: platform C++ GUI toolkit for UNIX(r)/Linux(r) (X11), Microsoft(r) fltk: Windows(r), and MacOS(r) X. FLTK provides modern GUI functionality fltk: without the bloat and supports 3D graphics via OpenGL(r) and its fltk: built-in GLUT emulation. The Fast Light Tool Kit was originally fltk: developed by Mr. Bill Spitzak. fltk: fltk: fltk home: http://www.fltk.org fltk: