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diff --git a/udkapi/com/sun/star/io/XSeekable.idl b/udkapi/com/sun/star/io/XSeekable.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_io_XSeekable_idl__
+#define __com_sun_star_io_XSeekable_idl__
+
+#include <com/sun/star/uno/XInterface.idl>
+
+#include <com/sun/star/io/IOException.idl>
+#include <com/sun/star/lang/IllegalArgumentException.idl>
+
+
+module com {  module sun {  module star {  module io {
+
+/** makes it possible to seek to a certain position within a stream.
+
+    <p>This interface should be supported, if it is possible to access the
+    data at the new position quickly.
+    You should not support this interface, if you have a continuous
+    stream, for example, a video stream.
+ */
+published interface XSeekable: com::sun::star::uno::XInterface
+{
+    /** changes the seek pointer to a new location relative to the beginning of the stream.
+
+
+        <p> This method changes the seek pointer so subsequent reads and writes can take place at a different
+        location in the stream object. It is an error to seek before the beginning of the stream or after the
+        end of the stream. </p>
+
+        @throws com::sun::star::lang::IllegalArgumentException in case location is negative or greater than XSeekable::getLength().
+     */
+    void seek( [in] hyper location )
+        raises( com::sun::star::lang::IllegalArgumentException, com::sun::star::io::IOException );
+
+    /** returns the current offset of the stream.
+       @returns
+             the current offset in this stream.
+     */
+    hyper getPosition()
+        raises( com::sun::star::io::IOException );
+
+    /** returns the length of the stream.
+       @returns
+            the length of the storage medium on which the stream works.
+     */
+    hyper getLength()
+        raises( com::sun::star::io::IOException );
+};
+
+
+}; }; }; };
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */