1 <?xml version="1.0" encoding="utf-8"?>

     2 <!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->

     3 <!-- This component and the accompanying materials are made available under the terms of the License 

     4 "Eclipse Public License v1.0" which accompanies this distribution, 

     5 and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->

     6 <!-- Initial Contributors:

     7     Nokia Corporation - initial contribution.

     8 Contributors: 

     9 -->

    10 <!DOCTYPE concept

    11   PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

    12 <concept id="GUID-8845AFD6-F238-43FF-BD7B-902CD8CD3973" xml:lang="en"><title>Showing

    13 and hiding toolbar items</title><prolog><metadata><keywords/></metadata></prolog><conbody>

    14 <p>You can set toolbar items hidden or dimmed if a toolbar function is temporary

    15 unavailable. </p>

    16 <p>The example below shows how to set a button unavailable. In the example,

    17 the boolean parameter <codeph>aHide</codeph> tells if the button should be

    18 hidden or dimmed. </p>

    19 <codeblock xml:space="preserve">void CMyAppView::SetButtonUnavailable( TBool aHide )

    20     {

    21     CAknToolbar* toolbar = Toolbar();

    22     if ( toolbar )

    23         {

    24         if ( aHide )

    25             {

    26             // To show the item again: 

    27             // toolbar->HideItem( KButtonId, EFalse, ETrue );

    28             toolbar->HideItem( KButtonId, ETrue, ETrue );

    29             }

    30         else

    31             {

    32             // To undim the item again:

    33             // toolbar->SetItemDimmed( KButtonId, EFalse, ETrue );

    34             toolbar->SetItemDimmed( KButtonId, ETrue, ETrue );

    35             }

    36         }

    37     }

    38 </codeblock>

    39 </conbody></concept>