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See more: C++ QT
I included include(src/qextserialport.pri) in my pro file and added src directry to my project

I created one Dialog(Member to main class) to configure serial port and I popup from main Window an I used the following code in OK button

void SerianConnectionDialog::on_btnOK_clicked()
    if (!port->isOpen()) {
    //If using polling mode, we need a QTimer
    if (port->isOpen() && port->queryMode() == QextSerialPort::Polling)

In My main class I concted the ready read of function

void MainWindow::connectSerialPort()
    if(QDialog::Accepted== dlg.exec())
        this->port= dlg.port;
        connect(timer, SIGNAL(timeout()), SLOT(onReadyRead()));
        connect(port, SIGNAL(readyRead()), SLOT(onReadyRead()));

And I coded to display data in a texedit

void MainWindow::onReadyRead()
    if (port->bytesAvailable()) {

But not showing any data from device. Any error in my code ?

The port showing open in Main class but not getting data to textbox
when I run CoolTerm application it showing the data correctly
Posted 13-Jul-12 20:45pm

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