Symbian3/PDK/Source/GUID-BF6ECC83-C7A0-4183-B835-6299CC2114AF.dita
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Fri, 22 Jan 2010 18:26:19 +0000
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permissions -rw-r--r--
Addition of the PDK content and example code for Documentation_content according to Feature bug 1607 and bug 1608
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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-BF6ECC83-C7A0-4183-B835-6299CC2114AF" xml:lang="en"><title>Querying
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if feedback is supported</title><prolog><metadata><keywords/></metadata></prolog><conbody>
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<p>You do not normally need to check whether tactile feedback is supported
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or not, as it is safe to call the API functions even if feedback is not supported.</p>
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<p>However, in some cases using the area registry can require complex calculations
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for e.g. at portrait/landscape mode changes. In case these calculations cause
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too much overhead, you can use the <xref href="jar:GUID-759FBC7F-5384-4487-8457-A8D4B76F6AA6.jar!/html/classMTouchFeedback.html#c2b7967bf3d203ca223ea5d99647a2ef" format="application/java-archive"><codeph>TouchFeedbackSupported</codeph></xref> function to check whether
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feedback is supported or not, and skip the calculations in case there is no
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feedback at all.</p>
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</conbody></concept>