Vaqt va sana bilan bog’liq jarayonlarni dasturlash

Qtime sinfi-ishga tushirish va o’chirish

start() – timerni ishga tushiradi;

start(int msec)-timerni msec dan keyin ishga tushiradi

stop() – timerni to’xtatadi;

Qtime sinfi-ishga tushirish va o’chirish

start() – timerni ishga tushiradi;

start(int msec)-timerni msec dan keyin ishga tushiradi

stop() – timerni to’xtatadi;

Qtime sinfiga-misol

Qtime sinfiga-misol- mainwindow.h

 #include

#include

#include

 namespace Ui {

class MainWindow;

}

 class MainWindow : public QMainWindow

{

    Q_OBJECT

 public:

    explicit MainWindow(QWidget *parent = 0);

    ~MainWindow();

 private:

    Ui::MainWindow *ui;

    QTimer *tmr;

private slots:

    void updateTime(); //Слот для обновления времени на экране

};

Qtime sinfiga-misol- mainwindow.cpp

MainWindow::MainWindow(QWidget *parent) :

QMainWindow(parent),

ui(new Ui::MainWindow)

{

ui->setupUi(this);

tmr = new QTimer(this); tmr->setInterval(1000);

connect(tmr, SIGNAL(timeout()), this, SLOT(updateTime()));

tmr->start();}

MainWindow::~MainWindow()

{

delete ui;

delete tmr;

}

void MainWindow::updateTime()

{

ui->label->setText(QTime::currentTime().toString()); // Ekrandagi vaqt

}};