--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devsoundextensions/ciextnfactoryplugins/ciextnserverplugin/inc/cimsghndlrintfc.h	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,81 @@
+/*
+* Copyright (c) 2002-2008 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 plugin classes implementing custom interface
+*                message handler interface.
+*
+*/
+
+
+
+#ifndef CIMSGHNDLRINTFC_H
+#define CIMSGHNDLRINTFC_H
+
+// Include files
+#include <mmf/common/mcustominterface.h>
+#include <mmf/common/mmfipc.h>
+
+/**
+ * Mixin class for plugins handling custom interface related messages
+ *
+ * Instance of plugins implementing this interface will be used by
+ * CCIExtnServerPlugin.
+ *
+ *  @since S60 v3.2
+ *
+ */
+class MCIMsgHndlrIntfc
+    {
+public:
+    /**
+     * Called by framework after plugin construction.
+     * The passed UID must be retained for the lifetime of the plugin and, on a
+     * subsequent call to Close(), REComSession::DestroyedImplementation() must
+     * be called by the plugin, using the stored UID.
+     * The implementation should return KErrNone upon successful initialization.
+     * Otherwise the plugin will be immediately destroyed.
+     *
+     * @param aCustomInterface  Reference to implementation of MCustomInterface.
+     * @param aDestructorKey The Uid returned by
+     *        REComSession::CreateImplementationL() or similar.
+     */
+    virtual TInt Initialize( MCustomInterface& aCustomInterface, TUid aDestructorKey ) = 0;
+
+    /**
+     * Returns implementation UID of this plugin.
+     *
+     * @return aUid implementation UID of the plugin
+     */
+    virtual TUid ImplementationUid() = 0;
+
+    /**
+     * Called by the framework to give the plugin a chance to handle the
+     * custom interface message.
+     *
+     * @param aMessage Message received by MM framework.
+     * @return ETrue if message can be handled by the plugin. EFalse if the
+     * 		   message is not supported by the plugin. Returning EFalse imples
+     * 		   aMessage not completed and should be processed further by the
+     * 		   framework.
+     */
+    virtual TBool HandleMessage( const RMmfIpcMessage& aMessage ) = 0;
+
+    /**
+     * Called by the framework when plugin is to be destroyed.
+     * Equivalent to destructor. Called to destroy plugin.
+     */
+    virtual void Close() = 0;
+
+    };
+
+#endif /*CIMSGHNDLRINTFC_H*/