/*

 * Copyright (c) 2004 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 audio equalizer call back 

 *

 */

 #ifndef MAUDIOEQUALIZERCALLBACK_H

 #define MAUDIOEQUALIZERCALLBACK_H

 //  INCLUDES

 // CLASS DECLARATION

 /**

 *  Interface class to be implemented by objects that receives callbacks from equalizer Event Observer.

 *

 *  @since 3.0

 */

 class MAudioEqualizerCallback

     {

     public:

         /**

         * Invoked by the Audio Equalizer Event Observer when the equalizer object changes state

         * @since 3.0

         * @param aBuffer Buffer containing the equalizer data

         */

         virtual void AudioEqualizerEventL( TDesC8& aDataPckg ) = 0;

     };

 #endif      // MAUDIOEQUALIZERCALLBACK_H

 // End of File