diff -r 666f914201fb -r 2fe1408b6811 epoc32/include/mw/lbttriggerchangeeventobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/epoc32/include/mw/lbttriggerchangeeventobserver.h	Tue Mar 16 16:12:26 2010 +0000
@@ -0,0 +1,54 @@
+/*
+* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
+* which accompanies this distribution, and is available
+* at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  location triggering server client library
+*
+*/
+
+
+
+#ifndef LBTTRIGGERCHANGEEVENTOBSERVER_H
+#define LBTTRIGGERCHANGEEVENTOBSERVER_H
+
+
+#include <lbttriggerchangeevent.h>
+
+/**
+ * The class defines the interface for receiving 
+ * trigger change event.
+ *
+ * This interface is used together with class 
+ * CLbtTriggerChangeEventNotifier.
+ *
+ * @lib lbt.lib
+ *
+ * @since S60 5.1
+ */
+class MLbtTriggerChangeEventObserver
+    {
+public:
+    /**
+     * This function is called when one or more triggers
+     * are changed.
+     *
+     * Note, the leave of this function is trapped and 
+     * ignored in class CLbtTriggerChangeEventNotifier. 
+     * 
+     * @param[out] aEvent Will contain the information when 
+     * a trigger change event occurs.
+     */
+    virtual void TriggerChangedL(
+        const TLbtTriggerChangeEvent& aEvent) = 0;
+    };
+
+#endif //LBTTRIGGERCHANGEEVENTOBSERVER_H