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diff --git a/forms/source/xforms/enumeration.hxx b/forms/source/xforms/enumeration.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 <cppuhelper/implbase.hxx>
+#include <com/sun/star/container/XEnumeration.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+
+namespace com::sun::star {
+    namespace container { class XIndexAccess; }
+    namespace uno { class Any; }
+    namespace container { class NoSuchElementException; }
+    namespace lang { class WrappedTargetException; }
+    namespace uno { class RuntimeException; }
+}
+
+/** implement XEnumeration based on container::XIndexAccess */
+class Enumeration
+    : public cppu::WeakImplHelper<css::container::XEnumeration>
+{
+    css::uno::Reference<css::container::XIndexAccess> mxContainer;
+    sal_Int32 mnIndex;
+
+public:
+    explicit Enumeration( css::container::XIndexAccess* );
+
+    virtual sal_Bool SAL_CALL hasMoreElements() override;
+
+    virtual css::uno::Any SAL_CALL nextElement() override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */