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diff --git a/offapi/com/sun/star/rendering/XVolatileBitmap.idl b/offapi/com/sun/star/rendering/XVolatileBitmap.idl
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+++ b/offapi/com/sun/star/rendering/XVolatileBitmap.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_rendering_XVolatileBitmap_idl__
+#define __com_sun_star_rendering_XVolatileBitmap_idl__
+
+#include <com/sun/star/rendering/XBitmap.idl>
+
+module com { module sun { module star { module rendering {
+
+/** This is a specialized interface to a volatile bitmap (which can
+    become invalid at any point in time).
+ */
+interface XVolatileBitmap : XBitmap
+{
+    /** Query whether this volatile bitmap still has valid content.
+
+        As the video RAM allocated to this bitmap can be reclaimed at
+        any time, a return value of true here does not imply that the
+        next draw operation with this bitmap will succeed. Instead,
+        the exception VolatileContentDestroyed might then be thrown,
+        if lost bitmap data is accessed.
+     */
+    boolean isValid();
+};
+
+}; }; }; };
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */