[gtk+] docs: document the GtkUpdateType enum.

[Stefan Kost <stefkost src gnome org>]

commit e07d8adccab251467ab2c4d61fa37f833141ded6
Author: Stefan Kost <ensonic users sf net>
Date:   Wed May 20 14:27:36 2009 +0300

    docs: document the GtkUpdateType enum.
    
    Add documentation based on the description from gtk_range_set_update_policy()
---
 docs/reference/gtk/tmpl/gtkenums.sgml |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/docs/reference/gtk/tmpl/gtkenums.sgml b/docs/reference/gtk/tmpl/gtkenums.sgml
index ec4c89b..3b72290 100644
--- a/docs/reference/gtk/tmpl/gtkenums.sgml
+++ b/docs/reference/gtk/tmpl/gtkenums.sgml
@@ -433,12 +433,12 @@ other, rather than vertically stacked
 
 <!-- ##### ENUM GtkUpdateType ##### -->
 <para>
-
+Used by #GtkRange to control the policy for notifying value changes.
 </para>
 
- GTK_UPDATE_CONTINUOUS: 
- GTK_UPDATE_DISCONTINUOUS: 
- GTK_UPDATE_DELAYED: 
+ GTK_UPDATE_CONTINUOUS: Notify updates whenever the value changed
+ GTK_UPDATE_DISCONTINUOUS: Notify updates when the mouse button has been released
+ GTK_UPDATE_DELAYED: Space out updates with a small timeout
 
 <!-- ##### ENUM GtkVisibility ##### -->
 <para>