-/* Toggle "window configuration" view for "win". */
-extern void toggle_winconfig(struct World * world, struct Win * win);
+/* Toggle "window configuration" view for active window. This also sets sensible
+ * values for Win->center for the various configuration views (y=0, x=0 for
+ * winconf_geometry and x= for winconf_keys).
+ */
+extern void toggle_winconfig();
+