[gtkmm-documentation] _WRAP_VFUNC: Add the errthrow optional parameter documentation.

[Josà Alburquerque <jaalburqu src gnome org>]

commit ba192fcee9b651965919127a3a0f5c57d82a58bb
Author: Josà Alburquerque <jaalburqu svn gnome org>
Date:   Thu Oct 4 10:06:50 2012 -0400

    _WRAP_VFUNC: Add the errthrow optional parameter documentation.
    
    	* docs/tutorial/C/gtkmm-tutorial-in.xml: Document the new errthrow
    	parameter of _WRAP_VFUNC so that it is clear in the documentation how
    	to use it.

 ChangeLog                             |    8 ++++++++
 docs/tutorial/C/gtkmm-tutorial-in.xml |    7 +++++++
 2 files changed, 15 insertions(+), 0 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 70b1680..93d3e51 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2012-10-04  Josà Alburquerque  <jaalburquerque gmail com>
+
+	_WRAP_VFUNC: Add the errthrow optional parameter documentation.
+
+	* docs/tutorial/C/gtkmm-tutorial-in.xml: Document the new errthrow
+	parameter of _WRAP_VFUNC so that it is clear in the documentation how
+	to use it.
+
 2012-09-11  Kjell Ahlstedt <kjell ahlstedt bredband net>
 
 	Fix the book/application/app_menu example.
diff --git a/docs/tutorial/C/gtkmm-tutorial-in.xml b/docs/tutorial/C/gtkmm-tutorial-in.xml
index 40c34bd..401522b 100644
--- a/docs/tutorial/C/gtkmm-tutorial-in.xml
+++ b/docs/tutorial/C/gtkmm-tutorial-in.xml
@@ -9268,6 +9268,13 @@ _WRAP_VFUNC(SizeRequestMode get_request_mode() const, get_request_mode)
         </listitem>
     </varlistentry>
     <varlistentry>
+        <term>errthrow</term>
+        <listitem>
+            <para>Use the last GError* parameter of the C virtual function (if
+              there is one) to throw an exception.</para>
+        </listitem>
+    </varlistentry>
+    <varlistentry>
         <term>custom_vfunc</term>
         <listitem>
             <para>Do not generate a definition of the vfunc in the