-void gtk_tool_item_set_visible_vertical (GtkToolItem *toolitem,
- gboolean visible_horizontal);
-gboolean gtk_tool_item_get_visible_vertical (GtkToolItem *toolitem);
+void gtk_tool_item_set_visible_vertical (GtkToolItem *tool_item,
+ gboolean visible_vertical);
+gboolean gtk_tool_item_get_visible_vertical (GtkToolItem *tool_item);
+
+gboolean gtk_tool_item_get_is_important (GtkToolItem *tool_item);
+void gtk_tool_item_set_is_important (GtkToolItem *tool_item,
+ gboolean is_important);