1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 /**

    17  @file

    18  @publishedPartner

    19  @released

    20 */

    21 

    22 #ifndef HCTLBASE_H

    23 #define HCTLBASE_H

    24 

    25 #include <e32base.h>

    26 

    27 /**

    28 The ECOM interface definition for the HCTL Plugin.

    29 

    30 This class is intended to be derived from.

    31 */

    32 class CHCTLBase : public CBase

    33 	{

    34 public:

    35 	/**

    36 	Attempt to load specified implementation

    37 	*/

    38 	IMPORT_C static CHCTLBase* NewL(TUid aImplementationUid);

    39 

    40 	/**

    41 	Attempt to load single instance implementation

    42 	*/

    43 	IMPORT_C static CHCTLBase* NewL();

    44     IMPORT_C ~CHCTLBase();

    45 

    46 public:

    47 	/**

    48 	Retrieves an instance of an interface to functionality provided by the HCTL.

    49 	

    50 	@param aUid UID of the API to be retrieved.

    51 	@return A pointer to the instance of the interface specified by aUid.

    52 	*/

    53 	virtual TAny* Interface(TUid aUid) = 0;

    54 

    55 protected:

    56     IMPORT_C CHCTLBase();

    57 

    58 private: // owned

    59 	/**

    60 	UID set by ECOM when the instance is created. Used when the instance is

    61 	destroyed.

    62 	*/

    63 	TUid iInstanceId;

    64 	

    65 	/**

    66 	Pad for BC-friendly future change.

    67 	*/

    68 	TAny* iPad;

    69 	};

    70 

    71 #endif // HCTLBASE_H

    72