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diff --git a/vcl/win/dtrans/XNotifyingDataObject.hxx b/vcl/win/dtrans/XNotifyingDataObject.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <com/sun/star/datatransfer/XTransferable.hpp>
+#include <com/sun/star/datatransfer/clipboard/XClipboardOwner.hpp>
+
+#if !defined WIN32_LEAN_AND_MEAN
+# define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#include <objidl.h>
+
+#include <systools/win32/comtools.hxx>
+
+/*--------------------------------------------------------------------------
+ To implement the lostOwnership mechanism cleanly we need this wrapper
+ object
+----------------------------------------------------------------------------*/
+
+// forward
+class CWinClipboard;
+
+class CXNotifyingDataObject final : public IDataObject
+{
+public:
+ CXNotifyingDataObject(
+ const IDataObjectPtr& aIDataObject,
+ const css::uno::Reference< css::datatransfer::XTransferable >& aXTransferable,
+ const css::uno::Reference< css::datatransfer::clipboard::XClipboardOwner >& aXClipOwner,
+ CWinClipboard* const theWinClipoard);
+
+ virtual ~CXNotifyingDataObject() {}
+
+ // ole interface implementation
+
+ //IUnknown interface methods
+ STDMETHODIMP QueryInterface(REFIID iid, void** ppvObject) override;
+ STDMETHODIMP_( ULONG ) AddRef( ) override;
+ STDMETHODIMP_( ULONG ) Release( ) override;
+
+ // IDataObject interface methods
+ STDMETHODIMP GetData( FORMATETC * pFormatetc, STGMEDIUM * pmedium ) override;
+ STDMETHODIMP GetDataHere( FORMATETC * pFormatetc, STGMEDIUM * pmedium ) override;
+ STDMETHODIMP QueryGetData( FORMATETC * pFormatetc ) override;
+ STDMETHODIMP GetCanonicalFormatEtc( FORMATETC * pFormatectIn, FORMATETC * pFormatetcOut ) override;
+ STDMETHODIMP SetData( FORMATETC * pFormatetc, STGMEDIUM * pmedium, BOOL fRelease ) override;
+ STDMETHODIMP EnumFormatEtc( DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc ) override;
+ STDMETHODIMP DAdvise( FORMATETC * pFormatetc, DWORD advf, IAdviseSink * pAdvSink, DWORD* pdwConnection ) override;
+ STDMETHODIMP DUnadvise( DWORD dwConnection ) override;
+ STDMETHODIMP EnumDAdvise( IEnumSTATDATA** ppenumAdvise ) override;
+
+ operator IDataObject*( );
+
+private:
+ void lostOwnership( );
+
+ sal_Int32 m_nRefCnt;
+ IDataObjectPtr m_aIDataObject;
+ const css::uno::Reference< css::datatransfer::XTransferable > m_XTransferable;
+ const css::uno::Reference< css::datatransfer::clipboard::XClipboardOwner > m_XClipboardOwner;
+ CWinClipboard* const m_pWinClipImpl;
+
+ friend class CWinClipboard;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */