main.cpp Example File

** Copyright (C) 2013 Laszlo Papp <>
** Contact:
** This file is part of the QtSerialPort module of the Qt Toolkit.
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** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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#include "serialportwriter.h"

#include <QtSerialPort/QSerialPort>

#include <QTextStream>
#include <QCoreApplication>
#include <QFile>
#include <QStringList>


int main(int argc, char *argv[])
    QCoreApplication coreApplication(argc, argv);
    int argumentCount = QCoreApplication::arguments().size();
    QStringList argumentList = QCoreApplication::arguments();

    QTextStream standardOutput(stdout);

    if (argumentCount == 1) {
        standardOutput << QObject::tr("Usage: %1 <serialportname> [baudrate]").arg(argumentList.first()) << endl;
        return 1;

    QSerialPort serialPort;
    QString serialPortName =;

    int serialPortBaudRate = (argumentCount > 2) ? : QSerialPort::Baud9600;

    QFile dataFile;
    if (!, QIODevice::ReadOnly)) {
        standardOutput << QObject::tr("Failed to open stdin for reading") << endl;
        return 1;

    QByteArray writeData(dataFile.readAll());

    if (writeData.isEmpty()) {
        standardOutput << QObject::tr("Either no data was currently available on the standard input for reading, or an error occurred for port %1, error: %2").arg(serialPortName).arg(serialPort.errorString()) << endl;
        return 1;

    SerialPortWriter serialPortWriter(&serialPort);

    return coreApplication.exec();

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