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diff --git a/src/opcua/client/qopcuahistoryreadresponse.h b/src/opcua/client/qopcuahistoryreadresponse.h
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+/****************************************************************************
+**
+** Copyright (C) 2021 basysKom GmbH, opensource@basyskom.com
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtOpcUa module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QOPCUAHISTORYREADRESPONSE_H
+#define QOPCUAHISTORYREADRESPONSE_H
+
+#include <QtOpcUa/qopcuahistorydata.h>
+#include <QtOpcUa/qopcuaglobal.h>
+
+#include <QtOpcUa/qopcuahistoryreadrawrequest.h>
+
+#include <QtCore/qpointer.h>
+
+QT_BEGIN_NAMESPACE
+
+class QOpcUaHistoryReadResponseImpl;
+
+class QOpcUaHistoryReadResponsePrivate;
+
+class Q_OPCUA_EXPORT QOpcUaHistoryReadResponse : public QObject {
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QOpcUaHistoryReadResponse)
+public:
+    QOpcUaHistoryReadResponse(QOpcUaHistoryReadResponseImpl *impl);
+
+    enum class State {
+        Unknown,
+        Reading,
+        Finished,
+        MoreDataAvailable,
+        Error
+    };
+    Q_ENUM(State)
+
+    bool hasMoreData() const;
+    bool readMoreData();
+    State state() const;
+
+    bool releaseContinuationPoints();
+
+    QList<QOpcUaHistoryData> data() const;
+    QOpcUa::UaStatusCode serviceResult() const;
+
+Q_SIGNALS:
+    void readHistoryDataFinished(QList<QOpcUaHistoryData> results, QOpcUa::UaStatusCode serviceResult);
+    void stateChanged(State state);
+};
+
+QT_END_NAMESPACE
+
+#endif // QOPCUAHISTORYREADRESPONSE_H