How do I create a pause/wait function using Qt?

From Qt5 onwards we can also use

Static Public Members of QThread

void    msleep(unsigned long msecs)
void    sleep(unsigned long secs)
void    usleep(unsigned long usecs)

I wrote a super simple delay function for an application I developed in Qt.

I would advise you to use this code rather than the sleep function as it won't let your GUI freeze.

Here is the code:

void delay()
{
    QTime dieTime= QTime::currentTime().addSecs(1);
    while (QTime::currentTime() < dieTime)
        QCoreApplication::processEvents(QEventLoop::AllEvents, 100);
}

To delay an event by n seconds - use addSecs(n).