I wrote this code to connect to the ip address of my own machine. bind returns true, though connect wouldn't prompt anything. I also run another program, using same ip and port but these two do not connect.

Qt Code: 
  1. void UDP::UDPtInit()
  2. {
  3.     socketPort = PORT;
  4.     udpsocket = new QUdpSocket(this);
  5.     if(!udpsocket->bind(QHostAddress("192.168.111.1"),socketPort))
  6.     {
  7.         qDebug() << "true";
  8.     }
  9.     else
  10.     {
  11.         qDebug() << "false";
  12.     }
  13.     connect(udpsocket,SIGNAL(readyRead()),this,SLOT(readState()));
  14.  
  15.     connect(udpsocket,SIGNAL(connected()),this,SLOT(socketConnected()));
  16.  
  17.     connect(udpsocket,SIGNAL(error(QAbstractSocket::SocketError)),this,SLOT(socketError(QAbstractSocket::SocketError)));
  18.  
  19.     emit clientActive(true);
  20. }
  21.  
  22.  
  23. void UDP::socketError( QAbstractSocket::SocketError )
  24. {
  25.     qDebug() << "UDPCLIENT ERROR: "<< udpsocket->errorString();
  26. }
  27.  
  28.  
  29. void    UDP::socketConnected()
  30. {
  31.     qDebug() << "UDPCLIENT : Socket connected!";
  32.     emit clientLogMessage(QString("UDPCLIENT : Connected !"));
  33. }
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