X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=include%2Ftree.h;h=2799afee5fdf452b179dd8a597d3a539f40be929;hb=527ec2a69c7e6a8a08abb6b4a12ea74b40186013;hp=81fdbe6acab95374499b138a4d09f2b9eaf18e4d;hpb=726f2a1e5a6e6567b3c880277986b9d1d7bca931;p=i3%2Fi3

diff --git a/include/tree.h b/include/tree.h
index 81fdbe6a..2799afee 100644
--- a/include/tree.h
+++ b/include/tree.h
@@ -7,8 +7,8 @@
  * tree.c: Everything that primarily modifies the layout tree data structure.
  *
  */
-#ifndef _TREE_H
-#define _TREE_H
+#ifndef I3_TREE_H
+#define I3_TREE_H
 
 extern Con *croot;
 /* TODO: i am not sure yet how much access to the focused container should
@@ -39,23 +39,23 @@ Con *tree_open_con(Con *con, i3Window *window);
 void tree_split(Con *con, orientation_t orientation);
 
 /**
- * Moves focus one level up.
+ * Moves focus one level up. Returns true if focus changed.
  *
  */
-void level_up();
+bool level_up(void);
 
 /**
- * Moves focus one level down.
+ * Moves focus one level down. Returns true if focus changed.
  *
  */
-void level_down();
+bool level_down(void);
 
 /**
  * Renders the tree, that is rendering all outputs using render_con() and
  * pushing the changes to X11 using x_push_changes().
  *
  */
-void tree_render();
+void tree_render(void);
 
 /**
  * Closes the current container using tree_close().