--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/windowing/windowserver/nga/CLIENT/w32comm.h	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,75 @@
+// Copyright (c) 2002-2009 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:
+//
+
+
+#if !defined(__W32COMM_H__)
+#define __W32COMM_H__
+
+
+const TUint KBufferMessageSlot			=0;
+const TUint KReplyBufferMessageSlot		=1;
+const TUint KRemoteBufferMessageSlot	=2;
+
+const TUint KAsyncMessageSlotAnimDllHandle	=0;
+const TUint KAsyncMessageSlotAnimHandle		=1;
+
+class TDescriptorType
+	{
+public:
+	enum TBufferType
+		{
+		EDes8,
+		EDes16,
+		EDesC8,
+		EDesC16,
+		};
+public:
+	virtual void SetDescriptorOnIpcArgs(TIpcArgs& aIpcArgs) const=0;
+protected:
+	inline TDescriptorType(TInt aArgument, TBufferType aBufferType) : iArgument(aArgument), iBufferType(aBufferType) {}
+protected:
+	TInt iArgument;
+	TBufferType iBufferType;
+	};
+
+class TReadDescriptorType : public TDescriptorType
+	{
+public:
+	inline TReadDescriptorType(const TDesC8* aBuffer) : TDescriptorType((TInt)aBuffer, EDesC8)
+		{
+		}
+	inline TReadDescriptorType(const TDesC16* aBuffer) : TDescriptorType((TInt)aBuffer, EDesC16)
+		{
+		}
+public: // from TDescriptorType
+	void SetDescriptorOnIpcArgs(TIpcArgs& aIpcArgs) const;
+	};
+
+class TWriteDescriptorType : public TDescriptorType
+	{
+public:
+	inline TWriteDescriptorType(TDes8* aBuffer) : TDescriptorType((TInt)aBuffer, EDes8)
+		{
+		}
+	inline TWriteDescriptorType(TDes16* aBuffer) : TDescriptorType((TInt)aBuffer, EDes16)
+		{
+		}
+public: // from TDescriptorType
+	void SetDescriptorOnIpcArgs(TIpcArgs& aIpcArgs) const;
+	};
+
+
+
+#endif