1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
3 grouptran.c for the Openbox window manager
4 Copyright (c) 2003-2007 Dana Jansens
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 See the COPYING file for a copy of the GNU General Public License.
21 #include <X11/Xutil.h>
22 #include <X11/Xatom.h>
26 Window one, two, group;
31 display = XOpenDisplay(NULL);
33 if (display == NULL) {
34 fprintf(stderr, "couldn't connect to X server :0\n");
38 state = XInternAtom(display, "_NET_WM_STATE", True);
39 modal = XInternAtom(display, "_NET_WM_STATE_MODAL", True);
41 group = XCreateWindow(display, RootWindow(display, 0),
42 0,0,1,1, 10, CopyFromParent, CopyFromParent,
43 CopyFromParent, 0, 0);
45 one = XCreateWindow(display, RootWindow(display, 0),
46 0,0,300,300, 10, CopyFromParent, CopyFromParent,
47 CopyFromParent, 0, 0);
48 two = XCreateWindow(display, RootWindow(display, 0),
49 0,0,100,100, 10, CopyFromParent, CopyFromParent,
50 CopyFromParent, 0, 0);
52 XSetWindowBackground(display,one,WhitePixel(display,0));
53 XSetWindowBackground(display,two,BlackPixel(display,0));
55 XSetTransientForHint(display, two, RootWindow(display,0));
56 XChangeProperty(display, two, state, XA_ATOM, 32,
57 PropModeReplace, (unsigned char*)&modal, 1);
59 wmhints = XAllocWMHints();
61 wmhints->flags = WindowGroupHint;
62 wmhints->window_group = group;
64 XSetWMHints(display, one, wmhints);
65 XSetWMHints(display, two, wmhints);
69 XMapWindow(display, one);
72 XMapWindow(display, two);
76 XNextEvent(display, &report);