--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/meetingrequest/mrutils/inc/esmrutilsapiext.h	Thu Dec 17 08:39:21 2009 +0200
@@ -0,0 +1,71 @@
+/*
+* Copyright (c)  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:  ESMRUI API extension definition
+*
+*/
+
+#ifndef ESMRUTILSAPIEXT_H
+#define ESMRUTILSAPIEXT_H
+
+#include <CMRUtils.h>
+
+/**
+ * Extension API query function.
+ *
+ * Usage:
+ *  Class providing extension:
+ *
+ *  class CExtendable
+ *      {
+ *      public:
+ *      .
+ *      .
+ *      .
+ *      TAny* ExtensionL( TUid aExtUid );
+ *      }; 
+ *
+ *   TAny* CExtendable::ExtensionL( TUid aExtUid )
+ *      {
+ *      if (aExtUid == KOwnExtension)
+ *          {
+ *          return static_cast<ExtensionApiType*>( this );
+ *          }
+ *      } 
+ *
+ *  Class using extension:
+ *
+ *
+ *  CMRUtils* utils = ...;
+ *  ExtensionApiType* ext = ExtensionApiL<ExtensionApiType>( iUtils );
+ *
+ * @param aUtils
+ * @return Pointer to the requested extension API
+ */
+template<class ExtensionApiType>
+ExtensionApiType* ExtensionApiL( CMRUtils& aUtils )
+    {
+    TAny* extApi = aUtils.ExtensionL( ExtensionApiType::ExtensionUid() );
+    if ( extApi )
+        {
+        return static_cast<ExtensionApiType*>( extApi );
+        }
+    else
+        {
+        return NULL;        
+        }
+    }
+    
+#endif  // ESMRUTILSAPIEXT_H
+
+// End of File