docs: add Gtk*Class docs

https://bugzilla.gnome.org/show_bug.cgi?id=81006

1 files changed, 11 insertions, 0 deletions

diff --git a/gtk/gtktoolitem.h b/gtk/gtktoolitem.h
index 376239f169..4f2436472e 100644
--- a/gtk/gtktoolitem.h
+++ b/gtk/gtktoolitem.h
@@ -50,6 +50,15 @@ struct _GtkToolItem
   GtkToolItemPrivate *priv;
 };
 
+/**
+ * GtkToolItemClass:
+ * @parent_class: The parent class.
+ * @create_menu_proxy: Signal emitted when the toolbar needs
+ *    information from tool_item about whether the item should appear in
+ *    the toolbar overflow menu.
+ * @toolbar_reconfigured: Signal emitted when some property of the
+ *    toolbar that the item is a child of changes.
+ */
 struct _GtkToolItemClass
 {
   GtkBinClass parent_class;
@@ -58,6 +67,8 @@ struct _GtkToolItemClass
   gboolean   (* create_menu_proxy)    (GtkToolItem *tool_item);
   void       (* toolbar_reconfigured) (GtkToolItem *tool_item);
 
+  /*< private >*/
+
   /* Padding for future expansion */
   void (* _gtk_reserved1) (void);
   void (* _gtk_reserved2) (void);