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++ // Copyright (C) 2021 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include <QModbusTcpClient>
++
++ #ifndef MODBUSCLIENT_H
++ #define MODBUSCLIENT_H
++
++ //! [custom_client]
++ class ModbusClient : public QModbusTcpClient
++ {
++ Q_OBJECT
++ Q_DISABLE_COPY_MOVE(ModbusClient)
++
++ public:
++ ModbusClient(QObject *parent = nullptr);
++
++ static constexpr QModbusPdu::FunctionCode CustomRead {QModbusPdu::FunctionCode(0x41)};
++ static constexpr QModbusPdu::FunctionCode CustomWrite {QModbusPdu::FunctionCode(0x42)};
++
++ private:
++ bool processPrivateResponse(const QModbusResponse &response, QModbusDataUnit *data) override;
++ };
++ //! [custom_client]
++
++ #endif // MODBUSCLIENT_H