qt5base-lts/examples/network/multicastsender/sender.h

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#ifndef SENDER_H
#define SENDER_H

#include <QDialog>
#include <QHostAddress>

QT_BEGIN_NAMESPACE
class QDialogButtonBox;
class QLabel;
class QPushButton;
class QTimer;
class QUdpSocket;
class QSpinBox;
QT_END_NAMESPACE

class Sender : public QDialog
{
    Q_OBJECT

public:
    Sender(QWidget *parent = 0);

private slots:
    void ttlChanged(int newTtl);
    void startSending();
    void sendDatagram();

private:
    QLabel *statusLabel;
    QLabel *ttlLabel;
    QSpinBox *ttlSpinBox;
    QPushButton *startButton;
    QPushButton *quitButton;
    QDialogButtonBox *buttonBox;
    QUdpSocket *udpSocket;
    QTimer *timer;
    QHostAddress groupAddress;
    int messageNo;
};

#endif