class and event create

[electronicboy]

Hi all,

I have a socket class. I want to catch SocketError.

1. Method;
I send QWidget parameter from my class.

2. Method;
I create event and i catch this event from main function.

How can u recommend? And How can I catch this SocketError this socket class and I show my form?

[squidge]

3. connect error signal from socket to an appropriate slot in your code.

[electronicboy]

Thanks for recommend but I don't catch. I connected to SocketErrors signal and my slot is displayError.

TcpClient::TcpClient(const QString serverAddress,int serverPort)
{
    _serverAddress = serverAddress;
    _serverPort = serverPort;
    tcpSocket = new QTcpSocket();
   connect(tcpSocket, SIGNAL(error(QAbstractSocket::SocketError)),
               this, SLOT(displayError(QAbstractSocket::SocketError)));
}
void TcpClient::displayError(QAbstractSocket::SocketError socketError)
{
    QString msg;
    switch (socketError) {
    case QAbstractSocket::RemoteHostClosedError:
        break;
    case QAbstractSocket::HostNotFoundError:
        msg = tr("The host was not found. Please check the "
                                    "host name and port settings.");
        break;
    case QAbstractSocket::ConnectionRefusedError:
        msg = tr("The connection was refused by the peer. "
                                    "Make sure the fortune server is running, "
                                    "and check that the host name and port "
                                    "settings are correct.");
        break;
    default:
        msg = tr("The following error occurred: %1.")
                                 .arg(tcpSocket->errorString());
    }
    QMessageBox *errorbox = new QMessageBox();
    errorbox->setText(msg);
    errorbox->show();
}

TcpClient::TcpClient(const QString serverAddress,int serverPort)
{
    _serverAddress = serverAddress;
    _serverPort = serverPort;
    tcpSocket = new QTcpSocket();
   connect(tcpSocket, SIGNAL(error(QAbstractSocket::SocketError)),
               this, SLOT(displayError(QAbstractSocket::SocketError)));
}
void TcpClient::displayError(QAbstractSocket::SocketError socketError)
{
    QString msg;
    switch (socketError) {
    case QAbstractSocket::RemoteHostClosedError:
        break;
    case QAbstractSocket::HostNotFoundError:
        msg = tr("The host was not found. Please check the "
                                    "host name and port settings.");
        break;
    case QAbstractSocket::ConnectionRefusedError:
        msg = tr("The connection was refused by the peer. "
                                    "Make sure the fortune server is running, "
                                    "and check that the host name and port "
                                    "settings are correct.");
        break;
    default:
        msg = tr("The following error occurred: %1.")
                                 .arg(tcpSocket->errorString());
    }
    QMessageBox *errorbox = new QMessageBox();
    errorbox->setText(msg);
    errorbox->show();
}

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But This code is my TcpClient clas. i close server socket and i wait error but not catch. Where I made a mistake?