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-8F2D8656-B7F4-4BDA-81CB-8440A2FDDD82" xml:lang="en"><title>Dimming

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

    14 <p>You can dim or hide toolbar extension items if an extension item function

    15 is not available in certain cases.</p>

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

    17 the example, the boolean parameter <codeph>aHide</codeph> indicates if the

    18 button should be hidden or dimmed.</p>

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

    20     {

    21     CAknToolbar* toolbar = Toolbar();

    22     if ( toolbar )

    23         {

    24         CAknToolbarExtension* toolbarExtension = toolbar->ToolbarExtension();

    25         if ( toolbarExtension )

    26             {

    27             if ( aHide )

    28                 {

    29                 // To show the item again: 

    30                 // toolbar->HideItem( KExtensionButtonId, EFalse );

    31                 toolbarExtension->HideItemL( KExtensionButtonId, ETrue );

    32                 }

    33             else

    34                 {

    35                 // To undim the item again:

    36                 // toolbar->SetItemDimmed( KExtensionButtonId, EFalse );

    37                 toolbarExtension->SetItemDimmed( KExtensionButtonId, ETrue );

    38                 }

    39             }

    40         }

    41     }

    42 </codeblock>

    43 </conbody></concept>