/**
 *     $Id: xdemo.c,v 1.1.1.1 2008-04-28 17:32:53 mbroeker Exp $
 * $Source: /development/c/demos/xdemo.c,v $
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <X11/Xlib.h>

int main (int argc, char **argv)
{
    Window w = 0;
    Display *dpy = XOpenDisplay (NULL);
    XEvent xev;
    int active;

    if (dpy == NULL) {
        printf ("Error opening localhost:0\n");
        return EXIT_SUCCESS;
    }

    XSynchronize (dpy, 1);
    w = XCreateSimpleWindow (dpy, DefaultRootWindow (dpy), 0, 0, 640, 480, 1, 1, 1);

    if (w < 0)
        return EXIT_SUCCESS;

    printf ("WINDOW-ID: %ld\n", w);

    XRaiseWindow (dpy, w);
    XMapWindow (dpy, w);

    printf ("Press any key to quit\n");

    active = 1;
    XSelectInput (dpy, w, KeyPressMask);

    while (active) {
        XNextEvent (dpy, &xev);
        switch (xev.type) {
        case KeyPress:
            active = 0;
            break;
        default:
            printf ("Unknown Event: %d\n", xev.type);
        }
    }

    XDestroyWindow (dpy, w);
    XCloseDisplay (dpy);
    return 0;
}