How to use sleep in Qt(C++)?
These are two method to use sleep() in Qt(C++).
sleep() by QThread
QThread has a function named by sleep().
It is too simple to use. Just call sleep() where you want.
here is example:
#include <QThread> //.... do something ..... QThread::sleep(10) // Wait for 10 sec //.... do something .....
sleep() with QEventLoop
QThread::sleep() can only use “sec”.
But, QEventLoop can use “msec”. QEventLoop case is useful to control drivers, etc..
How to ? The combination with QEventLoop and QTimer.
here is example:
#include <QTimer> #include <QEventLoop> //.... do something ..... QEventLoop loop; QTimer::singleshot(10, &amp;amp;amp;amp;amp;amp;amp;loop, SLOT(quit()); loop.exec(); // Process after 10 msec //.... do something .....
By the way。you can use Sleep() of C++, of course.
//.... do something ..... Sleep(10) // Wait for 10 sec //.... do something .....
