Symbian3/SDK/Source/GUID-6F938BDA-15CB-566E-88E0-6DF9278F8304.dita
author Dominic Pinkman <dominic.pinkman@nokia.com>
Tue, 20 Jul 2010 12:00:49 +0100
changeset 13 48780e181b38
parent 7 51a74ef9ed63
permissions -rw-r--r--
Week 28 contribution of SDK documentation content. See release notes for details. Fixes bugs Bug 1897 and Bug 1522.
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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-6F938BDA-15CB-566E-88E0-6DF9278F8304" xml:lang="en"><title>How
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to get and change file details</title><shortdesc>This topic describes how to get and change file details.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
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<p>The <xref href="GUID-1F240E05-55D4-3161-B22E-B48D93A981DF.dita"><apiname>TEntry</apiname></xref> and <xref href="GUID-0355B083-6DD8-30F0-BEDF-B6BE745E2AB6.dita"><apiname>TEntryArray</apiname></xref> classes
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are used to store, retrieve, interrogate and sort directory entries. <codeph>TEntry</codeph> encapsulates
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a single directory entry and <codeph>TEntryArray</codeph> an array of directory
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entries. </p>
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<section id="GUID-AD76D023-2328-453B-883D-6D1944D63CA5"><title>Retrieving entry details</title> <p>Use <xref href="GUID-E263C747-946F-35AA-9F1D-41833BD350FC.dita#GUID-E263C747-946F-35AA-9F1D-41833BD350FC/GUID-58F5BAD5-0D8C-33C9-B93B-D1C48F53333A"><apiname>RFs::Entry()</apiname></xref> to
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retrieve the size of the file, its attributes, name and the date and time
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of its latest modification (if the file has not been modified, this will be
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the time of its creation). </p> <codeblock id="GUID-3FE04CB5-8305-54DC-9904-1882AB6035E2" xml:space="preserve">  // Get and print date/time and file size 
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TBuf&lt;30&gt; dateString; 
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TEntry entry;
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User::LeaveIfError(fsSession.Entry(path,entry)); 
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_LIT(KDateString,"%D%M%Y%/0%1%/1%2%/2%3%/3 %-B%:0%J%:1%T%:2%S%:3%+B");
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entry.iModified.FormatL(dateString,KDateString); 
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_LIT(KModString, "Modification time of %S is %S\n"); // Format and print date and time
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console-&gt;Printf(KModString, entry.iName,&amp;dateString); // Get file size
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_LIT(KSizeString, "Size = %d bytes\n");
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console-&gt;Printf(KSizeString,entry.iSize); </codeblock> <p><b>Notes</b> </p> <ul>
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<li id="GUID-61C99E94-C6F9-582F-BF94-CCA57A53DC0E"><p>The time extracted using <codeph>TEntry::iModified</codeph> (and
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by <codeph>RFs::Modified()</codeph>) is an object of class <codeph>TTime</codeph>.
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Before a <codeph>TTime</codeph> value can be displayed, it must either be
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converted into its numeric fields (i.e., into a <codeph>TDateTime</codeph> object),
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or formatted, using <codeph>TTime::FormatL()</codeph>, as above. </p> </li>
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</ul> </section>
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<section id="GUID-4D3B1F36-248E-4ACF-9E0D-B56FF56A4DD3"><title>Changing attributes</title> <p>Use <xref href="GUID-E263C747-946F-35AA-9F1D-41833BD350FC.dita#GUID-E263C747-946F-35AA-9F1D-41833BD350FC/GUID-E1CB09AF-F5B0-35B2-B24E-C6F5F1C583C8"><apiname>RFs::SetAtt()</apiname></xref> to
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set a file or directory's attributes. It requires two attribute mask arguments.
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Any attributes specified in the first mask are set and any specified in the
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second are cleared. No attributes may be specified in both bitmasks. </p> <p>In
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the following example, the hidden and system attributes are set and the archive
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attribute is cleared. </p> <codeblock id="GUID-3C0120A7-7023-5967-A9C0-4ADB4483127B" xml:space="preserve">_LIT(KString,"%S");
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User::LeaveIfError(fsSession.SetAtt(path,KEntryAttHidden|KEntryAttSystem,KEntryAttArchive)); </codeblock> </section>
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</conbody></concept>