I am trying to set up a simple QProgressDialog while a for loop is taking place without using mutlithreading. I followed the Keeping the GUI Responsive but I cannot get it working:

Qt Code: 
  1. QProgressDialog progress("Copying files...", "Abort Copy", 0, myModel->model->rowCount(), this);
  2.     progress.setWindowModality(Qt::WindowModal);
  3.    // progress.show();
  4.  
  5.  
  6.     for( int i = 0; i< linesetIndexes.size()-1;   i++ )
  7.     {
  8.  
  9.         progress.setValue(i);
  10.        QCoreApplication::processEvents();
  11.         if (progress.wasCanceled())
  12.             break;
  13. ......//proccessing
  14.  
  15.  
  16. }
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