Game Programming using Qt 5 Beginner's Guide - Second Edition

Time for action – Setting up the client

After providing the server's address and port and choosing a username, the user can connect to the server:

void TcpClient::on_connect_clicked()
{
    //...
    if (m_socket->state() != QAbstractSocket::ConnectedState) {
        ui->chat->appendPlainText(tr("== Connecting..."));
        m_socket->connectToHost(ui->address->text(), ui->port->value());
        //...
    }
}