treednd: Add summaries

diff --git a/gtk/gtktreednd.c b/gtk/gtktreednd.c
index 84dee305fd105a1bcc48153adb1a6aa0db672d6f..d42ae10f3621fae76535ce518fbfd388885c7a7f 100644 (file)
--- a/gtk/gtktreednd.c
+++ b/gtk/gtktreednd.c
@@ -44,6 +44,18 @@
  * #GtkTreeDragSource and #GtkTreeDragDest interfaces.
  */
 
+/**
+ * GtkTreeDragDest:
+ *
+ * Interface for Drag-and-Drop destinations in `GtkTreeView`.
+ */
+
+/**
+ * GtkTreeDragSource:
+ *
+ * Interface for Drag-and-Drop destinations in `GtkTreeView`.
+ */
+
 GType
 gtk_tree_drag_source_get_type (void)
 {