#include <X11/Xlib.h>
#include <iostream>
#include <cstdlib>
#include "x11.h"
Display *displayopen()
{
  Display* dpy = XOpenDisplay(NULL);
  if (dpy == NULL) {
    std::cerr << "Could not open display\n";
    std::exit(1);
  }
  return dpy;
}