// This is just small FLTK2 application// Now you can imediately compile&run it in Dev-C++// Enjoy FLTK2 - Dejan Lekic, dejan@fltk.net, http://dejan.lekic.org#include <fltk/Window.h>#include <fltk/Widget.h>#include <fltk/run.h>using namespace fltk;int main(int argc, char **argv) {  Window *window = new Window(300, 180);  window->begin();  Widget *box = new Widget(20, 40, 260, 100, "Hello, World!");  box->box(UP_BOX);  box->labelfont(HELVETICA_BOLD_ITALIC);  box->labelsize(36);  box->labeltype(SHADOW_LABEL);  window->end();  window->show(argc, argv);  return run();}