Solved how to display Ports Available List

[rezaMSLM]

hello
i want to display Ports available on my computer using QSerialPortInfo::availablePorts()
using the following code

#include <QCoreApplication>
#include <QtSerialPort/QSerialPort>
#include <QtSerialPort/QSerialPortInfo>
#include <QList>
#include <QtDebug>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    QSerialPortInfo s1;
    QList<QSerialPortInfo> list;
    list=s1.availablePorts();
qDebug()<<list;

    return a.exec();
}

but i receive error on

qDebug()<<list;

how to convert "list" to Qstring in order to use with qDebug()?

[JonB]

@rezaMSLM
I assume from http://doc.qt.io/qt-5/qdebug.html#operator-lt-lt-25

Writes the contents of list to debug. T needs to support streaming into QDebug.

it's not the QList that is the issue, it's that QSerialPortInfo cannot be streamed (turned into a string). You need to do that yourself, perhaps one-at-a-time instead of in one go.

[J.Hilk]

@rezaMSLM

one way of doing it.

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    
    for(const QSerialPortInfo &info : QSerialPortInfo::availablePorts())
        qDebug() << info.portName();

    return a.exec();
}

---

Fixed typo.

[rezaMSLM]

@J.Hilk
I'm a newbie please post complete code. this code has compiling errors.

[J.Hilk]

@rezaMSLM well yes, I missed a closing ), you should be able to fix that yourself.

for(const QSerialPortInfo &info : QSerialPortInfo::availablePorts())
        qDebug() << info.portName();