Most of the GUI applications are time bound and it is extremely important to use timers to capture information about the program runtime and other similar tasks. You might also use timers to generate some event at specified time intervals, calculate the elapsed time for some action, to implement a countdown timer and so on. This section of the chapter covers how to create and use timers in our application and we develop a digital clock application explaining the concept of timers.
The classes that are used for creating this application in Qt are
QTimer class provides high-level programming interface for timers. It provides repetitive and single-shot timers. Repetitive timers run continuously ...