simple test connection

[unit]

Ok. simple example tcp connect to 80 port.

void MainWindow::on_pushButton_clicked()
{
    ui->label->setText("");
    connect(mysocket,SIGNAL(connected()),this,SLOT(on_connected()));
    connect(mysocket,SIGNAL(error(QAbstractSocket::SocketError)),this,SLOT(on_error(QAbstractSocket::SocketError)));
    mysocket->connectToHost(ui->lineEdit->text(), 80);
}
 
void MainWindow::on_error(QAbstractSocket::SocketError socketError)
{
    ui->label->setText("Not connected " + QString::number(socketError));
}
 
void MainWindow::on_connected()
{
    ui->label->setText("It's ok. Connected");
    mysocket->disconnectFromHost();
}

void MainWindow::on_pushButton_clicked()
{
    ui->label->setText("");
    connect(mysocket,SIGNAL(connected()),this,SLOT(on_connected()));
    connect(mysocket,SIGNAL(error(QAbstractSocket::SocketError)),this,SLOT(on_error(QAbstractSocket::SocketError)));
    mysocket->connectToHost(ui->lineEdit->text(), 80);
}

void MainWindow::on_error(QAbstractSocket::SocketError socketError)
{
    ui->label->setText("Not connected " + QString::number(socketError));
}

void MainWindow::on_connected()
{
    ui->label->setText("It's ok. Connected");
    mysocket->disconnectFromHost();
}

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