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[shermanaquarium] / sherman-aquarium / shermans / grabscreen.h

diff --git a/sherman-aquarium/shermans/grabscreen.h b/sherman-aquarium/shermans/grabscreen.h
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+/* xscreensaver, Copyright (c) 1992, 1993, 1994, 1997, 2001
+ *  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.
+ */
+
+#ifndef __GRABSCREEN_H__
+#define __GRABSCREEN_H__
+
+/* This will write a snapshot of the screen image into the given window.
+   Beware that the colormap of the window may also be changed (to match
+   the bits that were drawn.)
+ */
+extern void grab_screen_image (Screen *, Window);
+
+/* Whether one should use GCSubwindowMode when drawing on this window
+   (assuming a screen image has been grabbed onto it.)  Yes, this is a
+   total kludge. */
+extern Bool use_subwindow_mode_p(Screen *screen, Window window);
+
+/* Whether the given window is:
+   - the real root window;
+   - the virtual root window;
+   - a direct child of the root window;
+   - a direct child of the window manager's decorations.
+ */
+extern Bool top_level_window_p(Screen *screen, Window window);
+
+#endif /* __GRABSCREEN_H__ */