Symbian3/SDK/Source/GUID-A4F3738C-CBFD-4151-9132-26FE05966715.dita
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Wed, 31 Mar 2010 11:11:55 +0100
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Week 12 contribution of API Specs and fix SDK submission
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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-A4F3738C-CBFD-4151-9132-26FE05966715" xml:lang="en"><title>CBA buttons</title><prolog><metadata><keywords/></metadata></prolog><conbody>
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<fig id="GUID-A84D5799-70F3-46CB-90B6-05A455B0499E"><title>Application with Options and Exit softkeys, portrait and landscape
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views</title><image href="GUID-A69D2707-CB47-42C2-A6E9-5FB9BD86A30B_d0e72940_href.png"/></fig>
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<p>The Symbian platform uses Control Button Area (CBA) resources to set
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the options in the control pane above the softkeys. CBA resources map the
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text that appears above the softkeys in the control pane with commands that
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are collected by the event loop of the application framework and delivered
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to your application for <xref href="GUID-4941C035-C359-4968-9BD5-31F44EE5F810.dita">command
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handling</xref>.</p>
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<p>When a mobile device user selects an <parmname>Options</parmname> softkey,
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the application framework displays the <parmname>Options</parmname> menu based
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upon the definitions in the <xref href="GUID-5918ED8A-B26B-41A0-94A6-AB6D51BF80A1.dita">menu
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bars</xref> resources.</p>
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<p>Depending upon the requirements of your application, you can either:</p>
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<ul>
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<li><p><xref href="GUID-A3AF142B-F9DF-43FD-9D3F-788A74D0C575.dita">use
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precompiled CBA button options contained in <parmname>avkon.hrh</parmname></xref></p>
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</li>
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<li><p><xref href="GUID-5B26AB8E-E20A-4C15-B4F8-812ED9A4A96C.dita">create
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your own buttons</xref></p></li>
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</ul>
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<p>CBA buttons are constructed using the <xref format="html" href="specs/guides/Buttons_API_Specification/Buttons_API_Specification.html" scope="external">Buttons
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API</xref>.</p>
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</conbody></concept>