kscreensaver/xsavers/xs_visual.h

   1 /* xscreensaver, Copyright (c) 1993-1998 by Jamie Zawinski <jwz@jwz.org>
   2  *
   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
   9  * implied warranty.
  10  */
  11
  12 #ifndef __VISUAL_H__
  13 #define __VISUAL_H__
  14
  15 extern Visual *get_visual (Screen *, const char *name, Bool, Bool);
  16 extern Visual *get_visual_resource (Screen *, char *, char *, Bool);
  17 extern int visual_depth (Screen *, Visual *);
  18 /* extern int visual_pixmap_depth (Screen *, Visual *); */
  19 extern int visual_class (Screen *, Visual *);
  20 extern int visual_cells (Screen *, Visual *);
  21 extern int screen_number (Screen *);
  22 extern Visual *find_similar_visual (Screen *, Visual *old);
  23 extern void describe_visual (FILE *f, Screen *, Visual *, Bool private_cmap_p);
  24 extern Visual *get_overlay_visual (Screen *, unsigned long *pixel_return);
  25 extern Bool has_writable_cells (Screen *screen, Visual *visual);
  26
  27 #endif /* __VISUAL_H__ */