diff -r 000000000000 -r 5d03bc08d59c windowing/windowserver/test/t_gdcoverage/gdcovcommon.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/windowing/windowserver/test/t_gdcoverage/gdcovcommon.h	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,42 @@
+// Copyright (c) 2008-2009 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:
+// common defintions for plugin and caller
+// 
+//
+
+/**
+ @file
+ @test
+ @internalComponent - Internal Symbian coverage test code, 
+*/
+#ifndef __GDCOVCOMMON_H__
+#define __GDCOVCOMMON_H__
+
+// message header single byte signature
+const TUint8 KGdCoverageInfoSig = 0x56;
+
+// commands plugin may receive
+const TUint8 KGdCoverageCmdQuery = 0;
+const TUint8 KGdCoverageCmdCoverRedraw = 1;
+
+// information struct returned when querying plugin
+NONSHARABLE_STRUCT(TGdCoverageInfo)
+	{
+	TUint8 iSignature;
+	// add any command information here
+	TUint8 iNumTests;
+	};
+
+#endif // __GDCOVCOMMON_H
+