main.cpp Example File
creadersync/main.cpp
#include <QCoreApplication>
#include <QSerialPort>
#include <QStringList>
#include <QTextStream>
int main(int argc, char *argv[])
{
QCoreApplication coreApplication(argc, argv);
const int argumentCount = QCoreApplication::arguments().size();
const 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;
const QString serialPortName = argumentList.at(1);
serialPort.setPortName(serialPortName);
const int serialPortBaudRate = (argumentCount > 2)
? argumentList.at(2).toInt() : QSerialPort::Baud9600;
serialPort.setBaudRate(serialPortBaudRate);
if (!serialPort.open(QIODevice::ReadOnly)) {
standardOutput << QObject::tr("Failed to open port %1, error: %2")
.arg(serialPortName).arg(serialPort.error()) << endl;
return 1;
}
QByteArray readData = serialPort.readAll();
while (serialPort.waitForReadyRead(5000))
readData.append(serialPort.readAll());
if (serialPort.error() == QSerialPort::ReadError) {
standardOutput << QObject::tr("Failed to read from port %1, error: %2")
.arg(serialPortName).arg(serialPort.errorString()) << endl;
return 1;
} else if (serialPort.error() == QSerialPort::TimeoutError && readData.isEmpty()) {
standardOutput << QObject::tr("No data was currently available"
" for reading from port %1")
.arg(serialPortName) << endl;
return 0;
}
standardOutput << QObject::tr("Data successfully received from port %1")
.arg(serialPortName) << endl;
standardOutput << readData << endl;
return 0;
}