--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/SDK/Source/GUID-3829BD20-3DCB-5489-8FC4-07F954E391BF.dita	Wed Mar 31 11:11:55 2010 +0100
@@ -0,0 +1,40 @@
+<?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-3829BD20-3DCB-5489-8FC4-07F954E391BF" xml:lang="en"><title>Local
+and global handles</title><shortdesc>This document explains the distinction between local and global
+handles.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>This is the issue of Kernel side object visibility.</p>
+<p>Handles are said to be local or global.</p>
+<p>A handle is <i>local</i>, if the Kernel object which that handle represents
+is only visible to the thread that created it; no other thread can open a
+handle to the same Kernel object.</p>
+<p>Typically, code constructs the appropriate <codeph>RHandleBase</codeph> derived
+object, e.g. an <codeph>RMutex</codeph>, and calls its <codeph>Create()</codeph>, <codeph>CreateLocal()</codeph> or
+equivalent function to create the corresponding Kernel object.</p>
+<p>A handle is <i>global</i>, if the Kernel object which that handle represents
+is visible to all threads across all processes; any thread in any process
+can open a handle to that same Kernel object. Typically, such a Kernel object
+is intended for sharing.</p>
+<p>For a global handle. the corresponding Kernel object is assigned a name.
+The name gives that Kernel object an identity and is the key property which
+allows other threads to open a handle onto that same object. It is usual to
+use a <codeph>TFindHandleBase</codeph>  <i>derived</i> class to locate a global
+Kernel object. The following diagram shows the general idea.</p>
+<fig id="GUID-01C60CFA-8CA7-51CC-904E-158EC02959DE">
+<image href="GUID-5398C2DC-9AFA-5517-BCBF-5964970B9656_d0e234441_href.png" placement="inline"/>
+</fig>
+<p>See also:</p>
+<ul>
+<li id="GUID-56D39619-C90C-51DF-9475-3B75FB189258"><p><xref href="GUID-FC639517-F138-5E84-B57A-6347F5A47B88.dita">Names
+and fullnames</xref> in reference counting objects.</p> </li>
+</ul>
+</conbody></concept>
\ No newline at end of file