Symbian3/SDK/Source/GUID-E0C21636-657A-413F-A905-A08608B60768.dita
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Thu, 21 Jan 2010 18:18:20 +0000
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
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<!-- This component and the accompanying materials are made available under the terms of the License 
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"Eclipse Public License v1.0" which accompanies this distribution, 
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
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<!-- Initial Contributors:
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    Nokia Corporation - initial contribution.
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Contributors: 
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-->
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<!DOCTYPE concept
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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept id="GUID-E0C21636-657A-413F-A905-A08608B60768" xml:lang="en"><title>Touch
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UI utilities API class structure</title><prolog><metadata><keywords/></metadata></prolog><conbody>
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<p>The class structure consists of the class <codeph>CaknLongTapDetector</codeph>.
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The <codeph>MaknLongTapDetectorCallBack</codeph> interface is used for notifying
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clients about long tap events.</p>
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<fig id="GUID-9BC1E66F-A6EC-4976-BCDA-A80BD3B921DC">
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<title>Touch UI utilities API class structure</title>
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<image href="GUID-5C1EC237-EBC3-474D-B58D-502B82911DCA_d0e50688_href.png" scale="70" placement="inline"/>
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</fig>
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<p>To receive long tap events in your application, implement the <codeph>MaknLongTapDetectorCallBack</codeph> interface.
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When the user makes long tap on the device screen, the framework sends events
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through this interface. Use the method <codeph>HandleLongTapEventL</codeph> to
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handle the events sent by the framework.</p>
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<p>You need to have a separate instance of this class for each client component
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using it to observe long taps in the component’s control area.</p>
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</conbody></concept>