diff -r 000000000000 -r 2f259fa3e83a classicui_plat/ganes_api/inc/ganes/HgBufferOwnerIface.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/classicui_plat/ganes_api/inc/ganes/HgBufferOwnerIface.h	Tue Feb 02 01:00:49 2010 +0200
@@ -0,0 +1,40 @@
+/*
+* Copyright (c) 2009 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:     
+*
+*/
+
+
+#ifndef HGBUFFEROWNERIFACE_H_
+#define HGBUFFEROWNERIFACE_H_
+
+#include <e32base.h>
+
+/**
+ * Buffer observer interface. 
+ */
+class MHgBufferOwner
+    {
+public:
+    /**
+     * Buffer position changed. 
+     * The items between the aReleaseStart and aReleaseEnd should be released as soon as possible.
+     * 
+     * @param aReleaseStart The index of the first item in buffer.
+     * @param aReleaseEnd The index of the last item in buffer.
+     */
+    virtual void Release(TInt aReleaseStart, TInt aReleaseEnd) = 0 ;
+    };
+
+#endif /*HGBUFFEROWNERIFACE_H_*/