Hi,

I'm having problems with QtConcurrent, how to pause execution of QtConcurrent function (thread) ?
I've tried QFuture setPaused(true) and pause() but that does not work. Let say I have code like this:

Qt Code: 
  1. void MainWindow::on_pushButton_clicked() // run button
  2. {
  3.     future = QtConcurrent::run(this, &MainWindow::my_func);
  4.     watcher.setFuture(future);
  5. }
  6.  
  7. void MainWindow::on_pushButton_2_clicked() //pause button
  8. {
  9.     future.pause();
  10.     return;
  11. }
  12.  
  13. void MainWindow::my_func()
  14. {
  15.     qDebug()<< "time-consuming code start";
  16.     for (int i = 0; i < 8000; i++)
  17.     {
  18.         for (int j = 1; j< 1000; j++)
  19.         {
  20.             sum = sum * i / j;
  21.             QApplication::processEvents();
  22.  
  23.         }
  24.     }
  25.     qDebug()<< "time-consuming code end";
  26. }
To copy to clipboard, switch view to plain text mode 

When I press pause button my_func() still continues, thread is not paused. what am I doing wrong, how to pause execution of my_func ?
Thanks in advance.