1 /* xscreensaver, Copyright (c) 1998, 1999 by Jamie Zawinski <jwz@jwz.org>
3 * Permission to use, copy, modify, distribute, and sell this software and its
4 * documentation for any purpose is hereby granted without fee, provided that
5 * the above copyright notice appear in all copies and that both that
6 * copyright notice and this permission notice appear in supporting
7 * documentation. No representations are made about the suitability of this
8 * software for any purpose. It is provided "as is" without express or
12 /* The XDBE (Double Buffering) extension is pretty tricky to use, since you
13 can get X errors at inconvenient times during initialization. This file
14 contains a utility routine to make it easier to deal with.
17 #ifndef __XSCREENSAVER_XDBE_H__
19 #ifdef HAVE_DOUBLE_BUFFER_EXTENSION
21 # include <X11/extensions/Xdbe.h>
23 extern XdbeBackBuffer xdbe_get_backbuffer (Display *, Window, XdbeSwapAction);
25 #endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
27 #endif /* __XSCREENSAVER_XDBE_H__ */