mainwindow.h Example File

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#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QModbusDataUnit>

class QModbusClient;
class QModbusReply;

namespace Ui {
class MainWindow;
class SettingsDialog;
}


class SettingsDialog;
class WriteRegisterModel;

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

private:
    void initActions();
    QModbusDataUnit readRequest() const;
    QModbusDataUnit writeRequest() const;

private slots:
    void on_connectButton_clicked();
    void onStateChanged(int state);

    void on_readButton_clicked();
    void readReady();

    void on_writeButton_clicked();
    void on_readWriteButton_clicked();

    void on_connectType_currentIndexChanged(int);
    void on_writeTable_currentIndexChanged(int);

private:
    Ui::MainWindow *ui;
    QModbusReply *lastRequest;
    QModbusClient *modbusDevice;
    SettingsDialog *m_settingsDialog;
    WriteRegisterModel *writeModel;
};

#endif // MAINWINDOW_H