Since the signals and slots mechanism is asynchronous in nature, we can make use of it for things other than user interfaces. In programming terms, an asynchronous operation is a process that works independently, allowing the program to continue its operation without waiting for the process to complete, which may stall the whole program.
Qt 5 allows you to make use of its signals and slots mechanism to easily achieve asynchronous processes without much effort. This is even more true after Qt 5 introduced the new syntax for signals and slots, which allows a signal to trigger a normal function instead of a slot function from a QObject.
In the following example, we will further explore this opportunity and learn how we can improve our program's efficiency by using asynchronous operations through the signals and slots mechanism that's...