Screenshot with FLTK

A little screenshot program with FLTK & libpng
Tested with FLWM & JWM

flshot.cpp (or any name you like)
[code]
#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/fl_draw.H>
//#include <FL/x.H>
#include <X11/extensions/shape.h>
#include <png.h>

X...