Symbian3/SDK/Source/GUID-B563AC07-A54B-50E2-A3B2-821E8BC2C863.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-B563AC07-A54B-50E2-A3B2-821E8BC2C863" xml:lang="en"><title>Using
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CDirScan</title><shortdesc>This topic describes about setting up the scan and
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parsing path.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
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<section id="GUID-838F2F37-69AE-49B6-970E-FFF29B93709E"><title>Setting up the scan using SetScanDataL()</title> <fig id="GUID-CC897DCB-73B0-53A4-B1AA-351DF18F0AE0">
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<image href="GUID-3F172A97-8B96-5E1B-854C-F198D1334D2A_d0e263982_href.png" placement="inline"/>
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</fig> <p>Taking the above directory structure, if <codeph>SetScanData()</codeph> is
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called as follows:</p> <codeblock id="GUID-B6CEF818-9044-58B9-BEBF-EB05BE6F89A9" xml:space="preserve">_LIT(KDirText,"C:\\TopDir\\");
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...
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SetScanDataL(KDirText,KEntryAttDir,ESortByName|EAscending,CDirScan::EScanDownTree);
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...</codeblock> <p>then the directories are scanned, by repeatedly calling <codeph>CDirScan::NextL()</codeph> in
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the following order: <filepath>TopDir</filepath>, <filepath>Dir1</filepath>, <filepath>Dir2</filepath>, <filepath>Dir3</filepath>, <filepath>Dir4</filepath>, <filepath>Dir5</filepath>, <filepath>Dir6</filepath>, <filepath>Dir7</filepath>.
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The sort key of <codeph>EAscending</codeph> means that multiple directories
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within the same parent directory are scanned in ascending alphabetic or numeric
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order.</p> <p>If the scan direction is upwards, i.e.<codeph>CDirScan::EScanUpTree</codeph>,
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the directories are scanned in the order: <filepath>Dir2</filepath>, <filepath>Dir4</filepath>, <filepath>Dir3</filepath>, <filepath>Dir1</filepath>, <filepath>Dir6</filepath>, <filepath>Dir7</filepath>, <filepath>Dir5</filepath>, <filepath>TopDir</filepath>.</p> </section>
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<section id="GUID-890778ED-0009-40C1-A1AC-FBCF2F137FF6"><title>Parsing paths using FullPath()</title> <p>If the full path
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of the entry currently being scanned is:</p> <p><filepath>C:\Topdir\Middledir\Bottomdir\</filepath> </p> <p>and
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the top level directory in the scan as passed to <codeph>SetScanDataL()</codeph> is:</p> <p><filepath>C:\Topdir\</filepath> </p> <p>then:</p> <ul>
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<li id="GUID-016B0C1F-D5BD-53D7-82F0-9393B3B45FD7"><p><codeph>AbbreviatedPath()</codeph> returns <filepath>\Middledir\</filepath> </p> </li>
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<li id="GUID-80ECD7D1-9532-5ED3-8CBD-2A9E6F04C067"><p><codeph>FullPath()</codeph> returns <filepath>C:\Topdir\Middledir\</filepath>.</p> </li>
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</ul> </section>
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</conbody></concept>