FLTK(pronounced"fulltick")isacross-platformC++GUItoolkitforUNIX®/Linux®(X11),Microsoft®Windows®,andMacOS®X.FLTKprovidesmodernGUIfunctionalitywithoutthebloatandsupports3DgraphicsviaOpenGL®anditsbuilt-inGLUTemulation.FLTKisdesignedtobesmallandmodularenoughtobestaticallylinked,