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#!/usr/bin/env python
############################################################################
#
# Copyright (C) 2004-2005 Trolltech AS. All rights reserved.
#
# This file is part of the example classes of the Qt Toolkit.
#
# This file may be used under the terms of the GNU General Public
# License version 2.0 as published by the Free Software Foundation
# and appearing in the file LICENSE.GPL included in the packaging of
# self file. Please review the following information to ensure GNU
# General Public Licensing requirements will be met:
# http://www.trolltech.com/products/qt/opensource.html
#
# If you are unsure which license is appropriate for your use, please
# review the following information:
# http://www.trolltech.com/products/qt/licensing.html or contact the
# sales department at sales@trolltech.com.
#
# This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
# WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
############################################################################
from PyQt4 import QtGui, QtNetwork
class Receiver(QtGui.QDialog):
def __init__(self, parent=None):
super(Receiver, self).__init__(parent)
self.statusLabel = QtGui.QLabel("Listening for broadcasted messages")
quitButton = QtGui.QPushButton("&Quit")
self.udpSocket = QtNetwork.QUdpSocket(self)
self.udpSocket.bind(45454)
self.udpSocket.readyRead.connect(self.processPendingDatagrams)
quitButton.clicked.connect(self.close)
buttonLayout = QtGui.QHBoxLayout()
buttonLayout.addStretch(1)
buttonLayout.addWidget(quitButton)
buttonLayout.addStretch(1)
mainLayout = QtGui.QVBoxLayout()
mainLayout.addWidget(self.statusLabel)
mainLayout.addLayout(buttonLayout)
self.setLayout(mainLayout)
self.setWindowTitle("Broadcast Receiver")
def processPendingDatagrams(self):
while self.udpSocket.hasPendingDatagrams():
datagram, host, port = self.udpSocket.readDatagram(self.udpSocket.pendingDatagramSize())
try:
# Python v3.
datagram = str(datagram, encoding='ascii')
except TypeError:
# Python v2.
pass
self.statusLabel.setText("Received datagram: \"%s\"" % datagram)
if __name__ == '__main__':
import sys
app = QtGui.QApplication(sys.argv)
receiver = Receiver()
receiver.show()
sys.exit(receiver.exec_())
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