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#!/usr/bin/env python
#############################################################################
##
## Copyright (C) 2013 Riverbank Computing Limited.
## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
## All rights reserved.
##
## This file is part of the examples of PyQt.
##
## $QT_BEGIN_LICENSE:BSD$
## You may use this file under the terms of the BSD license as follows:
##
## "Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
## * Redistributions of source code must retain the above copyright
## notice, this list of conditions and the following disclaimer.
## * Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in
## the documentation and/or other materials provided with the
## distribution.
## * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
## the names of its contributors may be used to endorse or promote
## products derived from this software without specific prior written
## permission.
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
## $QT_END_LICENSE$
##
#############################################################################
from PyQt5.QtCore import QTimer
from PyQt5.QtWidgets import (QApplication, QDialog, QDialogButtonBox, QLabel,
QPushButton, QVBoxLayout)
from PyQt5.QtNetwork import QHostAddress, QUdpSocket
class Sender(QDialog):
def __init__(self, parent=None):
super(Sender, self).__init__(parent)
self.statusLabel = QLabel("Ready to broadcast datagrams on port 45454")
self.startButton = QPushButton("&Start")
quitButton = QPushButton("&Quit")
buttonBox = QDialogButtonBox()
buttonBox.addButton(self.startButton, QDialogButtonBox.ActionRole)
buttonBox.addButton(quitButton, QDialogButtonBox.RejectRole)
self.timer = QTimer(self)
self.udpSocket = QUdpSocket(self)
self.messageNo = 1
self.startButton.clicked.connect(self.startBroadcasting)
quitButton.clicked.connect(self.close)
self.timer.timeout.connect(self.broadcastDatagramm)
mainLayout = QVBoxLayout()
mainLayout.addWidget(self.statusLabel)
mainLayout.addWidget(buttonBox)
self.setLayout(mainLayout)
self.setWindowTitle("Broadcast Sender")
def startBroadcasting(self):
self.startButton.setEnabled(False)
self.timer.start(1000)
def broadcastDatagramm(self):
self.statusLabel.setText("Now broadcasting datagram %d" % self.messageNo)
datagram = "Broadcast message %d" % self.messageNo
self.udpSocket.writeDatagram(datagram, QHostAddress(QHostAddress.Broadcast), 45454)
self.messageNo += 1
if __name__ == '__main__':
import sys
app = QApplication(sys.argv)
sender = Sender()
sender.show()
sys.exit(sender.exec_())
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