diff -r 000000000000 -r 5e5d6b214f4f imstutils/imconversationview/imcvuiengine/inc/mimcvenginenewmessagehandler.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imstutils/imconversationview/imcvuiengine/inc/mimcvenginenewmessagehandler.h	Tue Feb 02 10:12:18 2010 +0200
@@ -0,0 +1,94 @@
+/*
+* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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:
+*
+* Description:  interface for message handling 
+*
+*/
+
+#ifndef MIMCVENGINESERVICESESSIONHANDLER_H
+#define MIMCVENGINESERVICESESSIONHANDLER_H
+
+//  INCLUDES
+#include <e32def.h>
+#include <e32base.h>
+#include <bamdesca.h>
+
+#include "imcvuiliterals.h"
+
+// CLASS DECLARATION
+class TXIMPRequestId;
+/**
+ *  Observer interface to handle message container changes.
+ *
+ *  @lib imcvengine.dll
+ *  @since 5.0
+ */
+//  FORWARD CLASS DECLERATIONS
+
+class MIMCVEngineServiceSessionHandler
+    {
+
+public: 
+
+    /**
+     * @see HandleDeliveryReportL
+     * to handle the new message delivery report
+     * @param aResultError, delivery report
+     * @param aText, msg to send
+     */
+    virtual void HandleDeliveryReportL(TXIMPRequestId aOperatioCode, TInt aResult ) = 0 ;
+
+    /**
+     * @see HandleConnectionTerminatedL
+     * to handle the connection lost
+     * @param aReason, reason report
+     */
+    virtual void HandleConnectionEventL( TIMCVConnectionState aState, TInt aReason ) = 0 ;
+
+public: // For protection.
+
+    /**
+     * Destructor for protection
+     */
+    virtual ~MIMCVEngineServiceSessionHandler(){}
+    };
+
+/**
+ *  Observer interface to handle message container changes.
+ *
+ *  @lib imcvengine.dll
+ *  @since 5.0
+ */
+class MIMCVEngineServiceSessionObserver
+	{
+
+	public: 
+			 /**
+			 * register MIMCVEngineServiceSessionHandler class to listen the event
+			 */
+			virtual void RegisterObserver(MIMCVEngineServiceSessionHandler* aObserver) = 0 ;
+			/**
+			 * unregister MIMCVEngineServiceSessionHandler class to avoid the event
+			 */
+			virtual void UnRegisterObserver(MIMCVEngineServiceSessionHandler* aObserver) = 0 ;
+        
+	public: // For protection.
+
+		/**
+		 * Destructor for protection
+		 */
+		virtual ~MIMCVEngineServiceSessionObserver(){}
+	};
+#endif      // MIMCVENGINESERVICESESSIONHANDLER_H
+
+// End of File