--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/PDK/Source/GUID-270FC83E-1D47-4CF9-A560-FB5DDA53111E.dita	Fri Jan 22 18:26:19 2010 +0000
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
+<!-- This component and the accompanying materials are made available under the terms of the License 
+"Eclipse Public License v1.0" which accompanies this distribution, 
+and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
+<!-- Initial Contributors:
+    Nokia Corporation - initial contribution.
+Contributors: 
+-->
+<!DOCTYPE concept
+  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<concept id="GUID-270FC83E-1D47-4CF9-A560-FB5DDA53111E" xml:lang="en"><title>Showing
+or hiding the toolbar extension</title><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>The toolbar extension is automatically shown when the extension button
+is pressed. </p>
+<p>The extension button is in a latched down state when the extension is open.
+If the extension button is pressed again, the extension closes and the extension
+button returns to normal state. This also happens if the user clicks somewhere
+outside the extension area.  </p>
+<p>By default, the extension is left open when the user selects an item from
+the extension. You can change this by defining suitable flags to the button.</p>
+<p>The example below shown the definition of a toolbar extension with the
+button closing the extension when selected.</p>
+<codeblock xml:space="preserve">RESOURCE AVKON_TOOLBAR_EXTENSION r_myapp_toolbar_extension
+    {
+    items =
+        {
+        TBAR_CTRL
+            {
+            type = EAknCtButton;
+            id = ECmdExtFirst;
+            control = AVKON_BUTTON
+                {
+                flags = KAknButtonRequestExitOnButtonUpEvent;
+                states =
+                    {
+                    AVKON_BUTTON_STATE
+                        {
+                        extension = r_myapp_toolbar_ext_first;
+                        }  
+                    };
+                };
+            },
+…
+            }
+        };
+    }
+</codeblock>
+<p>You can also show or hide the toolbar extension in your application using
+the methods in the class <xref href="jar:GUID-759FBC7F-5384-4487-8457-A8D4B76F6AA6.jar!/html/classCAknToolbarExtension.html" format="application/java-archive"><codeph>CAknToolbarExtension</codeph></xref>.</p>
+<p>The example below shows how to hide or show the toolbar extension.</p>
+<codeblock xml:space="preserve">void CMyAppView::ChangeToolbarExtensionVisibility( TBool aHide )
+    {
+    CAknToolbar* toolbar = Toolbar();
+    if ( toolbar )
+        {
+        CAknToolbarExtension* toolbarExtension = toolbar-&gt;ToolbarExtension();
+        if ( toolbarExtension )
+            {
+            if ( aHide )
+                {
+                toolbarExtension-&gt;SetShown( EFalse );
+                }
+            else
+                {
+                toolbarExtension-&gt;SetShown( ETrue );
+                }
+            }
+        }
+    }
+</codeblock>
+</conbody></concept>
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