how to make tcp server listen to a specific port using QTcpServer

[anurupr]

i tried using QHostAddress to initialse my QTcpServer object but whenever i start the server i get an error unable to start the server.
this is the code for initialising the server

QTcpServer *tcpserver;
tcpserver = new QTcpServer(this);
 
 QHostAddress hostadd("192.168.3.89");
 
 tcpserver->listen(hostadd,23456);
 if (!tcpserver->listen()) {
 
            QMessageBox::critical(this, tr("Fortune Server"), tr("Unable to start the server: %1.").arg(tcpserver->errorString()));
            close();
            return;
        }

QTcpServer *tcpserver;
tcpserver = new QTcpServer(this);

 QHostAddress hostadd("192.168.3.89");

 tcpserver->listen(hostadd,23456);
 if (!tcpserver->listen()) {
            
            QMessageBox::critical(this, tr("Fortune Server"), tr("Unable to start the server: %1.").arg(tcpserver->errorString()));
            close();
            return;
        }

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when i compile i get no error.
is this correct??? please help me
thanx in advance