new file mode 100644
--- /dev/null
+++ b/xdemo.c
@@ -0,0 +1,53 @@
+/**
+ *     $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;
+}