fltk.h

#ifndef FLTK_GUARD
#define FLTK_GUARD 1

#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Button.H>
#include <FL/Fl_Input.H>
#include <FL/Fl_Output.H>
#include <cstdlib>       // for exit(0)
#include <FL/fl_draw.H>
#include <FL/Enumerations.H>

#include <Fl/Fl_JPEG_Image.H>
#include <Fl/Fl_GIF_Image.H>

#endif