[gtk+/gtk-2-18] Clarify the docs for gtk_info_bar_set_default_response

[Matthias Clasen <matthiasc src gnome org>]

commit 35938479cad5eb7d916214d1a5ec39324b233e5e
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Feb 23 11:13:16 2010 -0500

    Clarify the docs for gtk_info_bar_set_default_response
    
    According to bug 610632
    (cherry picked from commit c3f0cdcfcfc0e9a3007297af6679920ad1eb0e81)

 gtk/gtkinfobar.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkinfobar.c b/gtk/gtkinfobar.c
index 9ada2c9..bbdb081 100644
--- a/gtk/gtkinfobar.c
+++ b/gtk/gtkinfobar.c
@@ -951,6 +951,9 @@ gtk_info_bar_set_response_sensitive (GtkInfoBar *info_bar,
  * the given response_id as the default widget for the dialog.
  * Pressing "Enter" normally activates the default widget.
  *
+ * Note that this function currently requires @info_bar to
+ * be added to a widget hierarchy. 
+ *
  * Since: 2.18
  */
 void