Working with QRunnable processes

In this recipe, we will learn how to use another type of high-level method to easily create a multithreading Qt 6 application. We will use the QRunnable and QThreadPool classes in this recipe.

How to do it…

1. Create a new Qt widget application project and then a new C++ class called MyProcess, which inherits the QRunnable class.
2. Next, open up myprocess.h and add the following headers:

   #include <QRunnable>
   #include <QDebug>

3. Then, declare the run() function, as follows:

   class MyProcess : public QRunnable {
       public:
               MyProcess();
               void run();
   };

4. After that, open up myprocess.cpp and define the run() function:

   void MyProcess::run() {
       int myNumber = 0;
       for (int i = 0; i < 100000000; ++i) {
      ...