Symbian3/SDK/Source/GUID-1E446762-AFE2-4198-8CD7-8C4466392543.dita
author Graeme Price <GRAEME.PRICE@NOKIA.COM>
Fri, 15 Oct 2010 14:32:18 +0100
changeset 15 307f4279f433
parent 13 48780e181b38
permissions -rw-r--r--
Initial contribution of the Adaptation Documentation.
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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-1E446762-AFE2-4198-8CD7-8C4466392543" xml:lang="en"><title>Choice
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list API class structure</title><prolog><metadata><keywords/></metadata></prolog><conbody>
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<p>The class structure for the Choice list API consists of the class <codeph>CAknChoiceList</codeph> and
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observer interface <codeph>McoeControlObserver</codeph>. The class structure
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is depicted in the figure below.</p>
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<fig id="GUID-F3AE7068-6277-4A02-B057-8324487F5D2F">
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<title>Choice list API classes</title>
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<image href="GUID-0991E536-97B2-4EAA-9448-A090BD073140_d0e71795_href.png" scale="50" placement="inline"/>
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</fig>
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<p>The <codeph>CAknChoiceList</codeph> class provides an interface for controlling
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the choice list. You need to create separate instances of this class for each
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choice list. </p>
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<p>When you use the choice list component in your application, you must implement
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the <codeph>McoeControlObserver</codeph> interface. This interface is used
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as a callback hook between the client application and the actual choice list.
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The client application receives a notification through this interface when
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the choice list is closed. This enables you to determine what to do with the
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changed selection from the choice list in your client application.</p>
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</conbody></concept>