X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=utils%2Fgrabscreen.h;h=5193eea643efce4effd2b39164bb7fc5d28fb151;hb=2d04c4f22466851aedb6ed0f2919d148f726b889;hp=3d9b16eb9e2cf92ed86e5c6ff3dddc2ae39a5b6e;hpb=96a411663168b0ba5432b407a83be55f3df0c802;p=xscreensaver

diff --git a/utils/grabscreen.h b/utils/grabscreen.h
index 3d9b16eb..5193eea6 100644
--- a/utils/grabscreen.h
+++ b/utils/grabscreen.h
@@ -1,4 +1,4 @@
-/* xscreensaver, Copyright (c) 1992, 1993, 1994, 1997, 2001, 2003
+/* xscreensaver, Copyright (c) 1992, 1993, 1994, 1997, 2001, 2003, 2004, 2005
  *  Jamie Zawinski <jwz@jwz.org>
  *
  * Permission to use, copy, modify, distribute, and sell this software and its
@@ -27,14 +27,35 @@
 
    If it is from a file, then it will be returned in `filename_return'.
    filename_return may be NULL; also, NULL may be returned (e.g., if
-   it's a screenshot or video capture.)
+   it's a screenshot or video capture.)  You are responsible for
+   freeing this string.
+
+   The size and position of the image is returned in `geometry_return'.
+   The image will generally have been scaled up to fit the window, but
+   if a loaded file had a different aspect ratio than the window, it
+   will have been centered, and the returned coords will describe that.
 
    Many colors may be allocated from the window's colormap.
  */
 extern void load_random_image (Screen *screen,
                                Window top_level_window,
                                Drawable target_window_or_pixmap, 
-                               char **filename_return);
+                               char **filename_return,
+                               XRectangle *geometry_return);
+
+/* Like the above, but loads the image in the background and runs the
+   given callback once it has been loaded.  Copy `name' if you want
+   to keep it.
+ */
+extern void fork_load_random_image (Screen *screen, Window window,
+                                    Drawable drawable,
+                                    void (*callback) (Screen *, Window,
+                                                      Drawable,
+                                                      const char *name,
+                                                      XRectangle *geometry,
+                                                      void *closure),
+                                    void *closure);
+
 
 /* Whether one should use GCSubwindowMode when drawing on this window
    (assuming a screen image has been grabbed onto it.)  Yes, this is a
@@ -53,8 +74,9 @@ extern Bool top_level_window_p(Screen *screen, Window window);
 /* Don't call this: this is for the "xscreensaver-getimage" program only. */
 extern void grab_screen_image_internal (Screen *, Window);
 
-/* Don't use this: this is how "xscreensaver-getimage" and "grabclient.c"
+/* Don't use these: this is how "xscreensaver-getimage" and "grabclient.c"
    pass the file name around. */
 #define XA_XSCREENSAVER_IMAGE_FILENAME "_SCREENSAVER_IMAGE_FILENAME"
+#define XA_XSCREENSAVER_IMAGE_GEOMETRY "_SCREENSAVER_IMAGE_GEOMETRY"
 
 #endif /* __GRABSCREEN_H__ */