// MmfDevSoundCustomInterfaceObserver.h

 // Copyright (c) 2005-2009 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:

 //

 /**

  @internalComponent

  @released

  @file

 */

 #ifndef MMFDEVSOUNDCUSTOMINTERFACEOBSERVER_H

 #define MMFDEVSOUNDCUSTOMINTERFACEOBSERVER_H

 /**

 @internalComponent

 The class is a mixin and is intended to support for closing the Mux and Demux pair in a

 DevSound Custom Interface. The function encapsulated by this class is called whenever the 

 MMMFDevSoundCustomInterfaceDeMuxPlugin::RefreshL method leaves.

 */

 class MMMFDevSoundCustomInterfaceObserver

 	{	

 public:

 	/**

 	Closes the Mux and Demux pair of a DevSound Custom Interface.

 	*/

 	virtual void CloseCustomInterface(TInt aIndex) = 0;

 	};	

 #endif // MMFDEVSOUNDCUSTOMINTERFACEOBSERVER_H