#include <qvariant.h>
#include <qtextedit.h>
#include <qlayout.h>
#include "listener.h"

listener::listener(QWidget *parent, const char *name) 
    : QDialog(parent, name), socketDevice(QSocketDevice::Datagram) 
{
     socketDevice.setBlocking(false);
     socketDevice.bind(QHostAddress("192.168.1.1"), 9090);
     socketNotifier = new QSocketNotifier(socketDevice.socket(),QSocketNotifier::Read,this);
     connect(socketNotifier, SIGNAL(activated(int)),this, SLOT(dataReceived()));
  
     setCaption("Listener");
     textedit1 = new QTextEdit(this);
     QHBoxLayout *mainLayout = new QHBoxLayout(this); 
     mainLayout->setMargin(11);
     mainLayout->setSpacing(6);
     mainLayout->addWidget(textedit1);
}


void listener::dataReceived() 
{

  textedit1->setText(""); 
  char *data2;
  QByteArray datagram(socketDevice.bytesAvailable()); 
  socketDevice.readBlock(data2, datagram.size()); 
  textedit1->setText(data2);
}

#ifndef LISTENER_H 
#define LISTENER_H 
#include <qdialog.h>
#include <qsocketdevice.h>
#include <qsocketnotifier.h> 

class QTextEdit;

class listener : public QDialog
{
     Q_OBJECT
public:
     listener(QWidget *parent = 0, const char *name = 0);
signals:


private slots: 

       void dataReceived();

private:
     QSocketDevice socketDevice;
     QSocketNotifier *socketNotifier;
     QTextEdit *textedit1;

};

#endif

	char data[MAX_LEN];
	int len = sock->readBlock( data, MAX_LEN-1 );
	if ( len <= 0 ) return;
	data[len] = 0;
	QString message( data );

#include <qapplication.h>
#include "listener.h"
#include <qtextcodec.h>

 int main(int argc, char *argv[])
{
     QApplication app(argc, argv);
     QTextCodec::setCodecForCStrings( QTextCodec::codecForName("UTF8"));
     QTextCodec::setCodecForTr( QTextCodec::codecForName("UTF8"));
     QTextCodec::setCodecForLocale( QTextCodec::codecForName("UTF8"));

     listener list1;
     list1.ip="192.168.1.1";
     list1.port=9090;		
	list1.on();
     app.setMainWidget(&list1);
     list1.show();
     return app.exec();
}

#ifndef LISTENER_H 
#define LISTENER_H 
#include <qdialog.h>
#include <qsocketdevice.h>
#include <qsocketnotifier.h> 
#include <qstring.h>

class QTextEdit;

class listener : public QDialog
{
     Q_OBJECT
public:
     listener(QWidget *parent = 0, const char *name = 0);
     QString ip,text; int port;
	void on();
signals:


private slots:

       void dataReceived();

private:
     QSocketDevice socketDevice;
     QSocketNotifier *socketNotifier;
     QTextEdit *textedit1;

};

#endif

#include <qvariant.h>
#include <qtextedit.h>
#include <qlayout.h>
#include <qstring.h>

#include "listener.h"

listener::listener(QWidget *parent, const char *name) 
    : QDialog(parent, name), socketDevice(QSocketDevice::Datagram) 
{
//   ip="192.168.1.1";
//    port=9090;	
     setCaption("Listener");
     textedit1 = new QTextEdit(this);
     QHBoxLayout *mainLayout = new QHBoxLayout(this); 
     mainLayout->setMargin(11);
     mainLayout->setSpacing(6);
     mainLayout->addWidget(textedit1);
}


void listener::dataReceived() 
{
int MAX_LEN = 255;
char data[MAX_LEN];
int len = socketDevice.readBlock( data, MAX_LEN-1 );
if ( len <= 0 ) return;
data[len] = 0;
text = data;
textedit1->append(data);
}

void listener::on()
{
     socketDevice.setBlocking(true);
     socketDevice.bind(QHostAddress(ip), port);
     socketNotifier = new QSocketNotifier(socketDevice.socket(),QSocketNotifier::Read,this);
connect(socketNotifier, SIGNAL(activated(int)),this, SLOT(dataReceived()));
}