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diff --git a/canvas/source/vcl/backbuffer.hxx b/canvas/source/vcl/backbuffer.hxx
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+++ b/canvas/source/vcl/backbuffer.hxx
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef _VCLCANVAS_BACKBUFFER_HXX_
+#define _VCLCANVAS_BACKBUFFER_HXX_
+
+#include <vcl/virdev.hxx>
+
+#include <canvas/vclwrapper.hxx>
+#include "outdevprovider.hxx"
+
+#include <boost/shared_ptr.hpp>
+
+
+namespace vclcanvas
+{
+    /// Background buffer abstraction
+    class BackBuffer : public OutDevProvider
+    {
+    public:
+        /** Create a backbuffer for given reference device
+
+            @param bMonochromeBuffer
+            When false, default depth of reference device is
+            chosen. When true, the buffer will be monochrome, i.e. one
+            bit deep.
+         */
+        BackBuffer( const OutputDevice& rRefDevice,
+                    bool                bMonochromeBuffer=false );
+
+        virtual OutputDevice&       getOutDev();
+        virtual const OutputDevice& getOutDev() const;
+
+        void setSize( const ::Size& rNewSize );
+
+    private:
+        ::canvas::vcltools::VCLObject<VirtualDevice>    maVDev;
+    };
+
+    typedef ::boost::shared_ptr< BackBuffer > BackBufferSharedPtr;
+}
+
+#endif /* #ifndef _VCLCANVAS_BACKBUFFER_HXX_ */