#include "widget.h"
#include "ui_widget.h"
#include <QHostAddress>
Widget::Widget(QWidget *parent)
: QWidget(parent)
, ui(new Ui::Widget)
{
ui->setupUi(this);
m_groupAddress = QHostAddress("239.255.255.250");
m_socket = new QUdpSocket(this);
auto ok = m_socket->bind(QHostAddress::AnyIPv4, 56123, QUdpSocket::ShareAddress);
connect(m_socket,SIGNAL(readyRead()),this,SLOT(readMsg()));
if (!ok)
{
return;
}
ok = m_socket->joinMulticastGroup(m_groupAddress);
if (!ok)
{
return;
}
}
Widget::~Widget()
{
delete ui;
}
void Widget::readMsg()
{
while (m_socket->hasPendingDatagrams()) {
QByteArray reply;
reply.resize(m_socket->pendingDatagramSize());
m_socket->readDatagram(reply.data(), reply.size());
qDebug() << reply.data();
}
}
void Widget::on_pushButton_clicked()
{
QByteArray message("M-SEARCH * HTTP/1.1\r\n" \
"Host:239.255.255.250:1900\r\n" \
"ST:urn:schemas-upnp-org:device:Basic:1\r\n" \
"Man:\"ssdp:discover\"\r\n" \
"MX:3\r\n" \
"\r\n");
auto writeOk = m_socket->writeDatagram(message.data(),m_groupAddress, 1900);
if (writeOk == -1)
{
qDebug() << "Writing Datagram failed";
}
}
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