diff -r 000000000000 -r 2f259fa3e83a classicui_plat/extended_notifiers_api/inc/AknNotifySignature.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/classicui_plat/extended_notifiers_api/inc/AknNotifySignature.h	Tue Feb 02 01:00:49 2010 +0200
@@ -0,0 +1,43 @@
+/*
+* Copyright (c) 2002-2008 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:  Signature definitions to validate notifier messages. 
+*                If signature is not valid, whole message will be ignored in 
+*                notifier plugin.
+*
+*/
+
+#ifndef __AKNNOTIFYSIGNATURE_H__
+#define __AKNNOTIFYSIGNATURE_H__
+
+#include <e32std.h>
+#include <AknNotifyStd.h>
+
+const TInt KAKNNOTIFIERSIGNATURE('a'*'k'*'n');
+
+// Used only when preallocating a global note id.
+const TInt KAKNNOTIFIERSIGNATURE_GETNOTEID('a'*'k'*'n'*'2');
+
+struct SAknNotifierSignature
+    {
+    SAknNotifierSignature():iSignature(KAKNNOTIFIERSIGNATURE){};
+    const TInt iSignature; 
+    };
+
+template <class T>
+struct SAknNotifierPackage: public SAknNotifierSignature
+    { 
+    T iParamData;
+    };
+
+#endif // __AKNNOTIFYSIGNATURE_H__