#ifndef CROSSHAIR_H
#define CROSSHAIR_H
#include <qwidget.h>
#include <qstring.h>
#include <qlabel.h>
#include <qevent.h>

class Crosshair : public QLabel
{
Q_OBJECT

public:
    Crosshair(QWidget *parent=0);

protected:
    void mousePressEvent(QMouseEvent *);

private:
    QTimer         *timer;

private slots:
    void timerfire();
};

#endif

#include <qapplication.h>
#include <qpushbutton.h>
#include <qtimer.h>
#include <qcursor.h>
#include <iostream>
#include "crosshair.h"

using namespace std;

int main(int argc,char **argv)
{
    QApplication a(argc,argv);

    Crosshair mousepos;

    a.setMainWidget(&mousepos);
    mousepos.show();
    return a.exec();
}

Crosshair::Crosshair(QWidget *parent) : QLabel(parent)
{
    setIndent(20);
    resize(100,30);
    move(1200,200);
    setText("0,0");
    timer=new QTimer(this);
    connect(timer,SIGNAL(timeout()),this,SLOT(timerfire()));
    timer->start(50,false);
}

void Crosshair::mousePressEvent(QMouseEvent *)
{
    qApp->quit();
}

void Crosshair::timerfire()
{
    QPoint p=QCursor::pos();
    this->setText(QString().sprintf("%d,%d",p.x(),p.y()));
}

qmake -project
qmake
make