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diff --git a/embedserv/source/inprocserv/advisesink.hxx b/embedserv/source/inprocserv/advisesink.hxx
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+++ b/embedserv/source/inprocserv/advisesink.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 .
+ */
+
+#ifndef INCLUDED_EMBEDSERV_SOURCE_INPROCSERV_ADVISESINK_HXX
+#define INCLUDED_EMBEDSERV_SOURCE_INPROCSERV_ADVISESINK_HXX
+
+#include <sal/config.h>
+
+#include <memory>
+
+#if !defined WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#include <objidl.h>
+#include <systools/win32/comtools.hxx>
+
+namespace inprocserv
+{
+class OleWrapperAdviseSink : public IAdviseSink
+{
+protected:
+    ULONG m_nRefCount;
+
+    sal::systools::COMReference<IAdviseSink> m_pListener;
+    DWORD m_nListenerID;
+
+    std::unique_ptr<FORMATETC> m_pFormatEtc;
+    DWORD m_nAspect;
+
+    DWORD m_nRegID;
+    DWORD m_bObjectAdvise;
+    DWORD m_nDataRegFlag;
+    DWORD m_nViewRegFlag;
+
+    BOOL m_bHandleClosed;
+    BOOL m_bClosed;
+
+public:
+    // an AdviseSink for own needs, should be created always
+    OleWrapperAdviseSink();
+
+    // an AdviseSink for IOleObject interface
+    explicit OleWrapperAdviseSink(const sal::systools::COMReference<IAdviseSink>& pListener);
+
+    // an AdviseSink for IDataObject interface
+    OleWrapperAdviseSink(const sal::systools::COMReference<IAdviseSink>& pListener,
+                         FORMATETC* pFormatEtc, DWORD nDataRegFlag);
+
+    // an AdviseSink for IViewObject interface
+    OleWrapperAdviseSink(const sal::systools::COMReference<IAdviseSink>& pListener, DWORD nAspect,
+                         DWORD nViewRegFlag);
+
+    virtual ~OleWrapperAdviseSink();
+
+    void SetRegID(DWORD nRegID) { m_nRegID = nRegID; }
+    DWORD GetRegID() { return m_nRegID; }
+
+    bool IsOleAdvise() { return m_bObjectAdvise; }
+    DWORD GetDataAdviseFlag() { return m_nDataRegFlag; }
+    DWORD GetViewAdviseFlag() { return m_nViewRegFlag; }
+
+    FORMATETC* GetFormatEtc() { return m_pFormatEtc.get(); }
+    DWORD GetAspect() { return m_nAspect; }
+    sal::systools::COMReference<IAdviseSink>& GetOrigAdvise() { return m_pListener; }
+    void DisconnectOrigAdvise() { m_pListener = nullptr; }
+
+    void SetClosed() { m_bClosed = TRUE; }
+    void UnsetClosed() { m_bClosed = FALSE; }
+    BOOL IsClosed() { return m_bClosed; }
+
+    STDMETHODIMP QueryInterface(REFIID, void**) override;
+    STDMETHODIMP_(ULONG) AddRef() override;
+    STDMETHODIMP_(ULONG) Release() override;
+
+    STDMETHODIMP_(void) OnDataChange(FORMATETC*, STGMEDIUM*) override;
+    STDMETHODIMP_(void) OnViewChange(DWORD, LONG) override;
+    STDMETHODIMP_(void) OnRename(IMoniker*) override;
+    STDMETHODIMP_(void) OnSave() override;
+    STDMETHODIMP_(void) OnClose() override;
+};
+
+}; // namespace advisesink
+
+#endif // INCLUDED_EMBEDSERV_SOURCE_INPROCSERV_ADVISESINK_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */