QTimer esimerkki

#include "dialog.h"
#include "ui_dialog.h"

Dialog::Dialog(QWidget *parent): QDialog(parent), ui(new Ui::Dialog)
{
    ui->setupUi(this);
    timer = new QTimer(this);
    connect(timer, SIGNAL(timeout()), this, SLOT(update()));
    timer->start(1000);
    Arvo=0;
}

Dialog::~Dialog()
{
    delete ui;
}

void Dialog::update()
{
   Arvo++;
   ui->dial->setValue(Arvo);
}

p, li { white-space: pre-wrap; }

#ifndef DIALOG_H

#define DIALOG_H



#include <QtGui/QDialog>

#include <QTimer>



namespace Ui

{

    class Dialog;

}



class Dialog : public QDialog

{

    Q_OBJECT



public:

    Dialog(QWidget *parent = 0);

    ~Dialog();

 private slots:

    void update();

private:

    Ui::Dialog *ui;

    QTimer *timer;



    int Arvo;

};



#endif // DIALOG_H