diff -r 61bc0f252b2b -r bac7acad7cb3 camerauis/cameraapp/generic/inc/CamPropertyObserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraapp/generic/inc/CamPropertyObserver.h	Wed Sep 01 12:30:54 2010 +0100
@@ -0,0 +1,57 @@
+/*
+* Copyright (c) 2007 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:  Callback interface for CCamPropertyWatcher
+*
+*  Copyright © 2007 Nokia.  All rights reserved.
+*  This material, including documentation and any related computer
+*  programs, is protected by copyright controlled by Nokia.  All
+*  rights are reserved.  Copying, including reproducing, storing,
+*  adapting or translating, any or all of this material requires the
+*  prior written consent of Nokia.  This material also contains
+*  confidential information which may not be disclosed to others
+*  without the prior written consent of Nokia.
+
+*
+*  
+*
+* ---------------------------------------------------------------------------
+*
+*/
+
+#ifndef CAMPROPERTYOBSERVER_H
+#define CAMPROPERTYOBSERVER_H
+
+// CLASS DECLARATION
+
+/**
+* Abstract API for property observer. 
+* Derived classes receive notification when the value of a watched property change
+*
+*  @since 2.8
+*/
+class MPropertyObserver
+    {
+public:
+    /**
+    * The value of a watched property has changed
+    * @since 2.8
+    * @param aCategory the category of the property
+    * @param aKey the identifier of the property
+    */
+    virtual void HandlePropertyChangedL( const TUid& aCategory, const TUint aKey ) = 0;
+    };
+
+#endif // CAMPROPERTYOBSERVER_H
+
+// End of File