1 // Copyright (c) 2007-2010 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 // Callback interface for incoming messages from media interface

    15 //

    16 

    17 #ifndef __TRACECOREMEDIAIFCALLBACK_H__

    18 #define __TRACECOREMEDIAIFCALLBACK_H__

    19 

    20 // Forward declarations

    21 class TTraceMessage;

    22 class DTraceCoreMediaIf;

    23 

    24 /**

    25  * Callback interface for incoming messages from media interface

    26  */

    27 NONSHARABLE_CLASS( MTraceCoreMediaIfCallback )

    28     {

    29 public:

    30 

    31     /**

    32      * Message was received

    33      * 

    34      * @param aMsg The message that was received

    35      * @return KErrNotFound if the message id was not found (not subscribed), KErrNone if found

    36      */

    37     virtual TInt MessageReceived( TTraceMessage &aMsg ) = 0;

    38     

    39     /**

    40      * Set sender media

    41      * 

    42      * @param aSenderMedia Pointer to the new sender

    43      * @return KErrNone if media change ok

    44      */

    45     virtual TInt SetSenderMedia( DTraceCoreMediaIf* aSenderMedia ) = 0;

    46     };

    47 

    48 #endif

    49 

    50 // End of File