/*

* 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:  Pure virtual base class for all Viewer type interfaces.

*              : Class contains method to identify underlaying interface and

*              : implementation.

*

*/

#ifndef MIHLVIEWER_H

#define MIHLVIEWER_H

// INCLUDES

#include <TIHLInterfaceType.h>

// CLASS DECLARATION

/**

*  MIHLViewer

*

*  This is pure virtual base class for all Viewer type interfaces.

*  Class contains method to identify underlaying interface and

*  implementation.

*

*  @lib IHL.lib

*  @since 3.0

*/

class MIHLViewer

    {

    public:

        /**

        * Return identifier for underlaying interface

		* and implementation.

        * @since 3.0

		* @return Identifier for underlaying

		*         interface and implementation.

		*/

		virtual TIHLInterfaceType Type() const = 0;

    protected:

        // Derived class cannot be destructed through this interface

        ~MIHLViewer() {}

	};

#endif   // MIHLVIEWER_H

// End of File