gdk: add missing annotations to gdk_event_get_scroll_deltas

https://bugzilla.gnome.org/show_bug.cgi?id=677774

diff --git a/gdk/gdkevents.c b/gdk/gdkevents.c
index 21061d9bdbef6ea6914e51f56378316b6dbc07fa..204863c4bf6eb5d1e915ae915d4df58823311ff6 100644 (file)
--- a/gdk/gdkevents.c
+++ b/gdk/gdkevents.c
@@ -1215,8 +1215,8 @@ gdk_event_get_scroll_direction (const GdkEvent *event,
 /**
  * gdk_event_get_scroll_deltas:
  * @event: a #GdkEvent
- * @delta_x: return location for X delta
- * @delta_y: return location for Y delta
+ * @delta_x: (out): return location for X delta
+ * @delta_y: (out): return location for Y delta
  *
  * Retrieves the scroll deltas from a #GdkEvent
  *