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/* test-xinerama.c --- playing with the Xinerama extension.
* xscreensaver, Copyright (c) 2003 Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation. No representations are made about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <stdio.h>
#include <time.h>
#include <sys/time.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <X11/Intrinsic.h>
#include <X11/Xproto.h>
#include <X11/extensions/Xinerama.h>
char *progname = 0;
char *progclass = "XScreenSaver";
static const char *
blurb (void)
{
static char buf[255];
time_t now = time ((time_t *) 0);
char *ct = (char *) ctime (&now);
int n = strlen(progname);
if (n > 100) n = 99;
strncpy(buf, progname, n);
buf[n++] = ':';
buf[n++] = ' ';
strncpy(buf+n, ct+11, 8);
strcpy(buf+n+9, ": ");
return buf;
}
int
main (int argc, char **argv)
{
int event_number, error_number;
int major, minor;
int nscreens = 0;
XineramaScreenInfo *xsi;
int i;
XtAppContext app;
Widget toplevel_shell = XtAppInitialize (&app, progclass, 0, 0,
&argc, argv, 0, 0, 0);
Display *dpy = XtDisplay (toplevel_shell);
XtGetApplicationNameAndClass (dpy, &progname, &progclass);
if (!XineramaQueryExtension(dpy, &event_number, &error_number))
{
fprintf(stderr, "%s: XineramaQueryExtension(dpy, ...) ==> False\n",
blurb());
fprintf(stderr, "%s: server does not support the Xinerama extension.\n",
blurb());
exit(1);
}
else
fprintf(stderr, "%s: XineramaQueryExtension(dpy, ...) ==> %d, %d\n",
blurb(), event_number, error_number);
if (!XineramaIsActive(dpy))
{
fprintf(stderr, "%s: XineramaIsActive(dpy) ==> False\n", blurb());
fprintf(stderr, "%s: server says Xinerama is turned off.\n", blurb());
exit(1);
}
else
fprintf(stderr, "%s: XineramaIsActive(dpy) ==> True\n", blurb());
if (!XineramaQueryVersion(dpy, &major, &minor))
{
fprintf(stderr, "%s: XineramaQueryVersion(dpy, ...) ==> False\n",
blurb());
fprintf(stderr, "%s: server didn't report Xinerama version numbers?\n",
blurb());
}
else
fprintf(stderr, "%s: XineramaQueryVersion(dpy, ...) ==> %d, %d\n", blurb(),
major, minor);
xsi = XineramaQueryScreens (dpy, &nscreens);
fprintf(stderr, "%s: %d Xinerama screens\n", blurb(), nscreens);
for (i = 0; i < nscreens; i++)
fprintf (stderr, "%s: screen %d: %dx%d+%d+%d\n",
blurb(),
xsi[i].screen_number,
xsi[i].width, xsi[i].height,
xsi[i].x_org, xsi[i].y_org);
XFree (xsi);
XSync (dpy, False);
exit (0);
}
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