[gtk+] Document gdk_window_geometry_changed

[Matthias Clasen <matthiasc src gnome org>]

commit 9be22cb5748baea7bac1187e975347e30ecb108c
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Aug 31 19:51:19 2009 -0400

    Document gdk_window_geometry_changed

 gdk/gdkwindow.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index 3cb3129..f9fb2ad 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -9332,7 +9332,11 @@ gdk_pointer_grab (GdkWindow *	  window,
 
 /**
  * gdk_window_geometry_changed:
- * @window: a #GdkWindow
+ * @window: an embedded offscreen #GdkWindow
+ *
+ * This function informs GDK that the geometry of an embedded
+ * offscreen window has changed. This is necessary for GDK to keep
+ * track of which offscreen window the pointer is in.
  *
  * Since: 2.18
  */