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diff --git a/offapi/com/sun/star/datatransfer/XTransferDataAccess.idl b/offapi/com/sun/star/datatransfer/XTransferDataAccess.idl
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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 __com_sun_star_datatransfer_XTransferDataAccess_idl__
+#define __com_sun_star_datatransfer_XTransferDataAccess_idl__
+
+#include <com/sun/star/datatransfer/DataFlavor.idl>
+#include <com/sun/star/uno/XInterface.idl>
+
+
+module com { module sun { module star { module datatransfer {
+
+/** This interface provides direct access to the data in all data flavors. It can
+    be used by the clipboard implementation to optimize data transport on
+    flush operations.
+
+    @see com::sun::star::datatransfer::XTransferable
+*/
+
+published interface XTransferDataAccess: com::sun::star::uno::XInterface
+{
+    /** To query for the summarized data size in bytes of a sequence of DataFlavor.
+
+        @param aFlavorList
+        A sequence of requested DataFlavor.
+        <p>An unsupported DataFlavor will be ignored.</p>
+
+        @returns
+        The number of bytes of the transfer data in the specified sequence of DataFlavor.
+    */
+    hyper queryDataSize( [in] sequence < DataFlavor > aFlavorList );
+
+    /** To get all the data of a sequence of DataFlavor.
+
+        @param aFlavorList
+        The sequence of requested DataFlavor.
+        <p>An unsupported DataFlavor will be ignored.</p>
+
+        @returns
+        The data in the requested DataFlavor.
+        <p>For unsupported DataFlavor an
+        empty any will be returned.</p>
+     */
+    sequence < any > getData( [in] sequence < DataFlavor > aFlavorList );
+};
+
+
+}; }; }; };
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */