/*

* 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:  Notifier interface for system events

*

*/

#ifndef __MIMPSSYSTEMNOTIFIER_H

#define __MIMPSSYSTEMNOTIFIER_H

//  INCLUDES

#include <e32base.h>

// FORWARD DECLARATIONS

// CLASS DECLARATION

/**

*  System events handler

*

*  @lib WVServiceSettingsUi.dll

*  @since 2.6

*/

NONSHARABLE_CLASS( MIMPSSystemNotifier )

    {

public: // New functions

    /**

    * Subscribes to listen for set of a key, which to notifier is bound

    * @param aKey       Keyword of which changes are to be observed.

    * @return error code

    */

    virtual TInt Subscribe() = 0;

    /**

    * Unsubscribes a request to listen for change of a key, which to notifier is bound

    * @param aKey       Keyword of which changes are to be observed.

    * @return error code

    */

    virtual void UnSubscribe() = 0;

    /**

    * Gets the integer value corresponding the key,  which to notifier is bound

    * @param aKey keyword

    * @param aValue integer value associated with the keyword

    * @return error code

    */

    virtual TInt GetIntKey( TInt& aValue ) = 0;

    /**

    * Destructor

    */

    virtual ~MIMPSSystemNotifier() {};

    };

#endif      // __MIMPSSYSTEMNOTIFIER_H

// End of File