Vaqt va sana bilan bog’liq jarayonlarni dasturlash 3-Ma’ruza Qt da vaqt uchun Qtime sinfi

void setTimerType(Qt::TimerType atype) — timer turini o’rnatadi.

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

}};

Qtime sinfiga-misol- main.cpp

#include "mainwindow.h"

#include
#include
int main(int argc, char *argv[])
{
QApplication a(argc, argv);

MainWindow w;

w.show();
QTimer::singleShot(5000, &w, SLOT(close()));
return a.exec();

}

Qt da sana uchun Qdate va QDateTimesinflari

#include