diff -r 072a5fa0c63b -r c6bafb5162d8 voicerecorder/RecViewSrc/MVRVolumeChangeObserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/voicerecorder/RecViewSrc/MVRVolumeChangeObserver.h	Wed Sep 01 12:29:14 2010 +0100
@@ -0,0 +1,48 @@
+/*
+* Copyright (c) 2002-2006 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: 
+*     This class defines a audio volume change observer interface.
+*
+*/
+
+
+#ifndef __MVRVOLUMECHANGEOBSERVER_H__
+#define __MVRVOLUMECHANGEOBSERVER_H__
+
+// INCLUDES
+#include <e32def.h>
+
+// CLASS DEFINITION
+/**
+* This class defines a audio volume change observer interface.
+*/
+class MVRVolumeChangeObserver 
+	{
+	public: // new methods
+
+		/**
+		* Called to notify a change in volume settings.
+		* @param aStep Volume level in steps
+		* @param aMaxSteps How many steps there are (10 usually).
+		*/
+		virtual void SetVolume( TInt aStep, TInt aMaxSteps ) = 0;
+		
+		/***
+		* Indicates if volume can be set, because rinto tone
+		* volume change has no effect if the tone is playing.
+		*/
+		virtual TBool CanSetVolume() = 0;
+	};
+
+#endif // __MVRVOLUMECHANGEOBSERVER_H__