dialog.h Example File

    #ifndef DIALOG_H
    #define DIALOG_H

    #include <QDialog>

    namespace Ui {
        class Dialog;
    }
    class QTimer;
    class QextSerialPort;
    class QextSerialEnumerator;

    class Dialog : public QDialog
    {
        Q_OBJECT

    public:
        explicit Dialog(QWidget *parent = 0);
        ~Dialog();

    protected:
        void changeEvent(QEvent *e);

    private Q_SLOTS:
        void onPortNameChanged(const QString &name);
        void onBaudRateChanged(int idx);
        void onParityChanged(int idx);
        void onDataBitsChanged(int idx);
        void onStopBitsChanged(int idx);
        void onQueryModeChanged(int idx);
        void onTimeoutChanged(int val);
        void onOpenCloseButtonClicked();
        void onSendButtonClicked();
        void onReadyRead();

        void onPortAddedOrRemoved();

    private:
        Ui::Dialog *ui;
        QTimer *timer;
        QextSerialPort *port;
        QextSerialEnumerator *enumerator;
    };

    #endif // DIALOG_H