<?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-09D1DB3C-DA2D-4E16-8EEB-2195F765BE22" xml:lang="en"><title>Using+
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Exported Global Variables for GLib</title><shortdesc>GLib on Linux has many global variables like <codeph>g_idle_funcs</codeph> exported+
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from the <filepath>.so</filepath> file. Symbian platform does not support+
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exporting global variables from the DLL. Therefore, the global variable of+
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GLib cannot be exported and hence used directly.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>+
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<p>The users must include the header <filepath>glib_global.h</filepath> for <codeph>libglib</codeph> global+
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variables and <filepath>gobject_global.h</filepath> for <codeph>libgobject</codeph> global+
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variables. The other two DLLs - <codeph>libgmodule</codeph> and <codeph>libgthread</codeph> -+
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do not have any exported global variables.</p>+
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<note>The header must be included only after all the other headers in the+
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file.</note>+
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<p>The following example code snippet explains the usage. This is a code that+
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prints the version of GLib being used.</p>+
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<p>The variables listed below are <codeph>libglib</codeph> global variables:</p>+
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<ul>+
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<li><p><codeph>glib_major_version</codeph></p></li>+
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<li><p><codeph>glib_minor_version</codeph></p></li>+
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<li><p><codeph>glib_micro_version</codeph></p></li>+
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</ul>+
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<codeblock xml:space="preserve">#include &lt;stdio.h&gt;+
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#include &lt;glib.h&gt;+
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#include &lt;glib_global.h&gt; // Always include as the last include +
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+
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int main()+
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{+
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    /* glib_major_version,glib_minor_version and +
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     * glib_micro_version are libglib global variables+
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     */+
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    printf("The version of glib that you are using is %d.%d.%d",+
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            glib_major_version,glib_minor_version,glib_micro_version);+
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    getchar();+
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    return 0;+
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}+
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</codeblock>+
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</conbody></concept>+
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