[gtk+] migrating-2to3: Add more words about GtkObject

[Jasper St. Pierre <jstpierre src gnome org>]

commit 99828efa50707410560ce6bb1213a6b4c4fd33d1
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Sun Jan 27 17:22:53 2013 -0500

    migrating-2to3: Add more words about GtkObject
    
    Talk about replacing the various function calls of GtkObject with
    GObject or GtkWidget calls.

 docs/reference/gtk/migrating-2to3.xml |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gtk/migrating-2to3.xml b/docs/reference/gtk/migrating-2to3.xml
index 34f4f92..a273b0b 100644
--- a/docs/reference/gtk/migrating-2to3.xml
+++ b/docs/reference/gtk/migrating-2to3.xml
@@ -1171,6 +1171,15 @@ gtk_arrow_draw (GtkWidget *widget,
       from GtkObject and makes use of the destroy functionality, you have
       to implement ::destroy yourself.
     </para>
+
+    <para>
+      If your program used functions like gtk_object_get or gtk_object_set,
+      these can be replaced directly with g_object_get or g_object_set. In
+      fact, most every gtk_object_* function can be replaced with the
+      corresponding g_object_ function, even in GTK+ 2 code. The one exception
+      to this rule is gtk_object_destroy, which can be replaced with
+      gtk_widget_destroy, again in both GTK+ 2 and GTK+ 3.
+    </para>
   </section>
 
   <section>