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diff --git a/vcl/win/dtrans/DOTransferable.hxx b/vcl/win/dtrans/DOTransferable.hxx
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+++ b/vcl/win/dtrans/DOTransferable.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 <cppuhelper/implbase.hxx>
+#include "DataFmtTransl.hxx"
+#include <com/sun/star/datatransfer/clipboard/XClipboard.hpp>
+#include <com/sun/star/datatransfer/XMimeContentTypeFactory.hpp>
+#include <com/sun/star/datatransfer/XMimeContentType.hpp>
+#include <com/sun/star/datatransfer/XSystemTransferable.hpp>
+#include <cppuhelper/weakref.hxx>
+
+#include <systools/win32/comtools.hxx>
+
+#include <mutex>
+#include <vector>
+
+// forward
+class CFormatEtc;
+
+class CDOTransferable : public ::cppu::WeakImplHelper<
+                            css::datatransfer::XTransferable>
+{
+public:
+    typedef css::uno::Sequence< sal_Int8 > ByteSequence_t;
+
+    // XTransferable
+
+    virtual css::uno::Any SAL_CALL getTransferData( const css::datatransfer::DataFlavor& aFlavor ) override;
+
+    virtual css::uno::Sequence< css::datatransfer::DataFlavor > SAL_CALL getTransferDataFlavors(  ) override;
+
+    virtual sal_Bool SAL_CALL isDataFlavorSupported( const css::datatransfer::DataFlavor& aFlavor ) override;
+
+    explicit CDOTransferable(
+        const css::uno::Reference< css::uno::XComponentContext >& rxContext,
+        const css::uno::Reference<css::datatransfer::clipboard::XClipboard>& xClipboard,
+        const std::vector<sal_uInt32>& rFormats);
+
+    explicit CDOTransferable(
+        const css::uno::Reference< css::uno::XComponentContext >& rxContext,
+        IDataObjectPtr rDataObject );
+
+private:
+    // some helper functions
+
+    void initFlavorList( );
+    void initFlavorListFromFormatList(const std::vector<sal_uInt32>& rFormats);
+
+    void addSupportedFlavor( const css::datatransfer::DataFlavor& aFlavor );
+    css::datatransfer::DataFlavor formatEtcToDataFlavor(sal_uInt32 cfFormat);
+
+    void tryToGetIDataObjectIfAbsent();
+    ByteSequence_t getClipboardData( CFormatEtc& aFormatEtc );
+    OUString synthesizeUnicodeText( );
+
+    LCID getLocaleFromClipboard( );
+
+    bool compareDataFlavors( const css::datatransfer::DataFlavor& lhs,
+                                          const css::datatransfer::DataFlavor& rhs );
+
+private:
+    css::uno::WeakReference<css::datatransfer::clipboard::XClipboard> m_xClipboard;
+    IDataObjectPtr                                                                          m_rDataObject;
+    css::uno::Sequence< css::datatransfer::DataFlavor >               m_FlavorList;
+    const css::uno::Reference< css::uno::XComponentContext >          m_xContext;
+    CDataFormatTranslator                                             m_DataFormatTranslator;
+    css::uno::Reference< css::datatransfer::XMimeContentTypeFactory > m_rXMimeCntFactory;
+    std::mutex                                                        m_aMutex;
+    bool                                                              m_bUnicodeRegistered;
+    CLIPFORMAT                                                        m_TxtFormatOnClipboard;
+
+// non supported operations
+private:
+    CDOTransferable( const CDOTransferable& );
+    CDOTransferable& operator=( const CDOTransferable& );
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */