Symbian3/SDK/Source/GUID-3313A7E0-B10A-5CDE-8DA3-FB9C48FC80CA.dita
changeset 0 89d6a7a84779
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/SDK/Source/GUID-3313A7E0-B10A-5CDE-8DA3-FB9C48FC80CA.dita	Thu Jan 21 18:18:20 2010 +0000
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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
+<!-- This component and the accompanying materials are made available under the terms of the License 
+"Eclipse Public License v1.0" which accompanies this distribution, 
+and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
+<!-- Initial Contributors:
+    Nokia Corporation - initial contribution.
+Contributors: 
+-->
+<!DOCTYPE concept
+  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<concept id="GUID-3313A7E0-B10A-5CDE-8DA3-FB9C48FC80CA" xml:lang="en"><title>Change
+notifier</title><shortdesc>Describes change notifiers and what they are used for.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>Change notifiers allow threads to be notified of changes in the environment
+such as a switch in locale, crossing over past midnight etc.; the <codeph>TChanges</codeph> enumerator
+lists the possible events.</p>
+<p>A change notifier is a Kernel object and, as such, is managed by the Kernel.
+Access to a change notifier is through an <codeph>RChangeNotifier</codeph> handle.</p>
+<p>The list of possible events is itemised by the enumerators of the <codeph>TChanges</codeph> enum.</p>
+<p>The change notifier service is not used directly but is an asynchronous
+service provider intended to be part of an active object. For example, the
+Environment Change Notifier API provides a <codeph>CEnvironmentChangeNotifier</codeph> active
+object which uses the services of the change notifier as part of its implementation.</p>
+</conbody></concept>
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