// Copyright (c) 2008-2009 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:

 //

 /**

  @file

  @publishedAll

  @released

 */

 #ifndef REMCONABSOLUTEVOLUMEAPICONTROLLEROBSERVER_H_

 #define REMCONABSOLUTEVOLUMEAPICONTROLLEROBSERVER_H_

 #include <e32base.h>

 /**

 Clients must implement this interface in order to instantiate objects of type 

 CRemConAbsoluteVolumeController. This interface passes incoming responses 

 from RemCon to the client.

 */

 class MRemConAbsoluteVolumeControllerObserver

 	{

 public:

 	/** 

 	The current volume has been received.

 	@param aVolume The current relative volume on the target device.

 	@param aMaxVolume The maximum volume against which aVolume is relative.

 	@param aError The response error.

 	*/

 	virtual void MrcavcoCurrentVolume(TUint32 aVolume, 

 			TUint32 aMaxVolume, 

 			TInt aError)=0;

 	/**

 	The response for setting absolute volume.

 	@param aVolume The relative volume that has been set on the target device.

 	@param aMaxVolume The maximum volume against which aVolume is relative.

 	@param aError The response error.

 	*/

 	virtual void MrcavcoSetAbsoluteVolumeResponse(TUint32 aVolume, 

 			TUint32 aMaxVolume, 

 			TInt aError)=0;

 	/**

 	The error occurs for absolute volume notification. 

 	When this is called, the client must call

 	RegisterAbsoluteVolumeNotification() to register again if the client 

 	wants to receive the notification.

 	*/

 	virtual void MrcavcoAbsoluteVolumeNotificationError() = 0;

 	};

 #endif /*REMCONABSOLUTEVOLUMEAPICONTROLLEROBSERVER_H_*/