Symbian3/PDK/Source/GUID-D72A47FE-23D2-4AD1-92B9-53DD9B64733F-GENID-1-12-1-19-1-1-7-1-6-1-5-1-5-1-5-1-4-1.dita
changeset 12 80ef3a206772
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/PDK/Source/GUID-D72A47FE-23D2-4AD1-92B9-53DD9B64733F-GENID-1-12-1-19-1-1-7-1-6-1-5-1-5-1-5-1-4-1.dita	Fri Jul 16 17:23:46 2010 +0100
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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-D72A47FE-23D2-4AD1-92B9-53DD9B64733F-GENID-1-12-1-19-1-1-7-1-6-1-5-1-5-1-5-1-4-1" xml:lang="en"><title>Creating
+a Notifier ECOM Plug-in</title><shortdesc>To use the Privacy Query and Notification API to create a notifier
+a licensee must secondly create a notifier ECOM plug-in.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<section>       <title>Exporting a factory method </title>       <p>The notifier
+is implemented as an ECOM plug-in and has typical ECOM entry point methods.
+The following code example shows how the <xref href="GUID-56C8D5AB-7D9A-3B20-B699-07F17A87A61C.dita#GUID-56C8D5AB-7D9A-3B20-B699-07F17A87A61C/GUID-38E7BBCF-8F4C-3398-B322-2D3427E4CAC1"><apiname>CPosPrivacyNotifier::NotifierBase(</apiname></xref>)
+method is used to return the <codeph>MEikSrvNotifierBase2</codeph> pointer
+required by the Extended Notifier Framework.     </p><p>The UID specified
+in <codeph>IMPLEMENTATION_PROXY_ENTRY</codeph> is the constant <codeph>KPosPrivacyNotifierImplUid</codeph> as
+defined in <filepath>EPos_PrivacyNotifier.hrh</filepath>.  </p>     <codeblock xml:space="preserve">#include &lt;e32base.h&gt;
+#include &lt;eiknotapi.h&gt;
+#include &lt;ImplementationProxy.h&gt;
+#include &lt;EPos_PrivacyNotifier.hrh&gt;
+#include "CMyPrivacyNotifier.h"
+
+// Creates the notifier. Used by the NotifierArray() factory method.
+LOCAL_C void CreateNotifiersL(CArrayPtrFlat&lt;MEikSrvNotifierBase2&gt;* aNotifiers)
+    {
+    CMyPrivacyNotifier* notifier = CMyPrivacyNotifier::NewLC();
+    aNotifiers-&gt;AppendL(notifier-&gt;NotifierBase());
+    CleanupStack::Pop(notifier); // Do not destroy
+    }
+// Notifier entry point. Note that the factory method must not leave
+LOCAL_C CArrayPtr&lt;MEikSrvNotifierBase2&gt;* NotifierArray()
+    {
+    CArrayPtrFlat&lt;MEikSrvNotifierBase2&gt;* notifiers =
+        new CArrayPtrFlat&lt;MEikSrvNotifierBase2&gt;(1);
+    if (notifiers)
+        {
+        TRAPD(err, CreateNotifiersL(notifiers));
+        if (err)
+            { // release any notifiers we have created
+            TInt count = notifiers-&gt;Count();
+            while (--count &gt;= 0)
+                {
+                (*notifiers)[count]-&gt;Release();
+                }
+            delete notifiers;
+            notifiers = NULL;
+            }
+        }
+    return notifiers;
+    }
+
+const TImplementationProxy KPosImplTable[] =
+    {
+    IMPLEMENTATION_PROXY_ENTRY(KPosPrivacyNotifierImplUid, NotifierArray)
+    };
+
+EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt&amp; aTableCount)
+    {
+    aTableCount = sizeof(KPosImplTable) / sizeof(TImplementationProxy);
+
+    return KPosImplTable;
+    }</codeblock></section>
+<section><title>Defining the ECOM resource file</title><p>The following is
+an example ECOM resource file for a Privacy Q&amp;N Notifier: </p><codeblock xml:space="preserve">#include &lt;RegistryInfo.rh&gt;
+#include &lt;Uikon.hrh&gt;
+#include &lt;EPos_PrivacyNotifier.hrh&gt;
+
+
+// RESOURCE DEFINITIONS
+// -----------------------------------------------------------------------------
+//
+// r_registry
+// ECOM registry information for Privacy UI
+//
+// -----------------------------------------------------------------------------
+//
+RESOURCE REGISTRY_INFO r_registry
+    {
+    dll_uid = 0x01234123;
+    interfaces =
+        {
+        INTERFACE_INFO
+            {
+            interface_uid = KUikonUidPluginInterfaceNotifiers;
+            implementations =
+                {
+                IMPLEMENTATION_INFO
+                    {
+                    implementation_uid = KPosPrivacyNotifierImplUid;
+                    version_no = 1;
+                    display_name = "Privacy UI";
+                    }
+                };
+            }
+        };
+    }</codeblock><p>The most important points about this file are: </p><ul>
+<li><p>dll_uid is the UID of the notifier DLL. This should be the same as
+specified in the MMP file (see below). </p></li>
+<li><p>interface_uid is the UID of the <codeph>MEikSrvNotifierBase2</codeph> interface.
+This should be set to the constant <codeph>KUikonUidPluginInterfaceNotifiers</codeph> defined
+in <filepath>Uikon.hrh</filepath>. </p></li>
+<li><p>implementation_uid is the notifier implementation UID. This UID is
+defined as the constant <codeph>KPosPrivacyNotifierImplUid</codeph> in <filepath>EPos_PrivacyNotifier.hrh</filepath>.</p></li>
+</ul></section>
+<section><title>Defining the MMP file </title><p>The following is an example
+MMP file for a Privacy Q&amp;N Notifier:</p><codeblock xml:space="preserve">TARGET          myprivnot.dll
+TARGETTYPE      PLUGIN
+UID             0x10009D8D 0x01234123 // Notifier type uid = 0x10009D8D
+VENDORID        VID_DEFAULTCAPABILITY      ProtServ TrustedUI
+SOURCEPATH      ..\src
+SOURCE          MyPrivacyNotifierMain.cpp
+SOURCE          CMyPrivacyNotifier.cpp
+START RESOURCE  PrivacyNotifier.rss
+TARGET          myprivnot.rsc
+END
+SYSTEMINCLUDE   \Epoc32\Include
+SYSTEMINCLUDE   \Epoc32\Include\ECom
+SYSTEMINCLUDE   \Epoc32\Include\lbs
+LIBRARY         euser.lib
+LIBRARY         eposprvqnif.lib
+LIBRARY         eposprvtyp.lib
+LIBRARY         bafl.lib
+</codeblock><p>The most important points about this file are:</p><ul>
+<li><p>The target type is <codeph>PLUGIN</codeph> because the notifier is
+implemented as an ECOM plug-in.</p></li>
+<li><p>The second UID is <codeph>0x10009D8D</codeph> to identify the DLL as
+an ECOM plug-in.</p></li>
+<li><p>The third UID is the DLL UID and is allocated by Symbian. Note that
+this is not the same as the implementation UID specified in the ECOM resource
+file. </p></li>
+<li><p><filepath>\epoc32\include\lbs</filepath> is included in order to find
+the Privacy Query and Notification API header files. </p></li>
+<li><p><filepath>eposprvqnif.lib</filepath> is included to link against the
+Privacy Query and Notification API library. </p></li>
+<li><p>The notifier must have the <codeph>ProtServ</codeph> and <codeph>TrustedUI</codeph> capabilities
+as required by the Extended Notifier Framework. </p></li>
+</ul></section>
+</conbody></concept>
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