--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/upnpavcontroller/upnpavcontrollerclient/inc/upnpavdeviceobserver.h	Thu Dec 17 08:52:00 2009 +0200
@@ -0,0 +1,79 @@
+/*
+* 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 "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:      main callback interface for AVController client
+*
+*/
+
+
+
+
+
+
+#ifndef M_UPNPAVDEVICEOBSERVER_H
+#define M_UPNPAVDEVICEOBSERVER_H
+
+// INCLUDES
+
+// FORWARD DECLARATIONS
+class CUpnpAVDevice;
+
+/**
+* Defines the response interface for the device control operations of the
+* UPnP AV Controller.
+*
+* @since Series 60 3.1
+*/
+class MUPnPAVDeviceObserver
+    {
+
+public:
+
+    /**
+     * Notifies that a new UPnP device was discovered.
+     *
+     * UPnPAVController releases the memory allocated for aDevice
+     * after calling the callback method.
+     *
+     * @since Series 60 3.1
+     * @param aDevice CUpnpDevice object
+     * @return None
+     */
+    virtual void UPnPDeviceDiscovered( const CUpnpAVDevice& aDevice ) = 0;
+
+    /**
+     * Notifies that a UPnP device was disappeared.
+     *
+     * UPnPAVController releases the memory allocated for aDevice
+     * after calling the callback method.
+     *
+     * @since Series 60 3.1
+     * @param aDevice CUpnpDevice object
+     * @return None
+     */
+    virtual void UPnPDeviceDisappeared( const CUpnpAVDevice& aDevice ) = 0;
+
+    /**
+     * Notifies that the WLAN connection has been lost. All sessions
+     * are now usable and must be closed.
+     *
+     * @since Series 60 3.1
+     * @return None
+     */        
+    virtual void WLANConnectionLost() = 0;       
+
+    };
+
+#endif // M_UPNPAVDEVICEOBSERVER_H
+
+// End of File