1 /**

     2  *     $Id: xdemo.c,v 1.1.1.1 2008-04-28 17:32:53 mbroeker Exp $

     3  * $Source: /development/c/demos/xdemo.c,v $

     4  *

     5  */

     6 

     7 #include <stdio.h>

     8 #include <stdlib.h>

     9 #include <X11/Xlib.h>

    10 

    11 int main (int argc, char **argv)

    12 {

    13     Window w = 0;

    14     Display *dpy = XOpenDisplay (NULL);

    15     XEvent xev;

    16     int active;

    17 

    18     if (dpy == NULL) {

    19         printf ("Error opening localhost:0\n");

    20         return EXIT_SUCCESS;

    21     }

    22 

    23     XSynchronize (dpy, 1);

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

    25 

    26     if (w < 0)

    27         return EXIT_SUCCESS;

    28 

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

    30 

    31     XRaiseWindow (dpy, w);

    32     XMapWindow (dpy, w);

    33 

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

    35 

    36     active = 1;

    37     XSelectInput (dpy, w, KeyPressMask);

    38 

    39     while (active) {

    40         XNextEvent (dpy, &xev);

    41         switch (xev.type) {

    42         case KeyPress:

    43             active = 0;

    44             break;

    45         default:

    46             printf ("Unknown Event: %d\n", xev.type);

    47         }

    48     }

    49 

    50     XDestroyWindow (dpy, w);

    51     XCloseDisplay (dpy);

    52     return 0;

    53 }