QSerialPort Problem portName() sending empty string
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Hello, I want to start using the QSerialPort library but I am having some difficulties with it. I have downloaded the Qt Creator 5.1 and in the installation I have installed the qserialport library. I added "Qt += serialport" to my .pro file. I made a new console project and this is the code
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#include <QCoreApplication>
#include <QSerialPort/QSerialPort>
#include <QSerialPort/QSerialPortInfo>
#include <QString>
#include <QTextStream>int main( int argc, char *argv[])
{
QCoreApplication a(argc, argv);
QTextStream output(stdout);
QSerialPortInfo port;
QString portName;portName = port.portName(); if ( portName.isEmpty()) { output << "Empty String" << endl; } else output << portName << endl;
}
@The problem here is that it prints out an "Empty String". I have looked into the Windows Device Manager and I have found that I have Communications Port(COM1) and Printer Port(LPT1). I am using Windows XP. Any suggestions on why the program is not printing the serial port name? Thank you
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And you read documentation, looked examples? You itself understand, what you do? Otherwise I don't want to help you at all...
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You need to provide name through the constructor for QSerialPortInfo() and should check for ports presence using isValid().
One can also enumerate through available ports using QSerialInfo::availablePorts()