So basically, I have a QToolButton filled with a large icon of a playing card, and I want to overlay a QProgressBar over it.

Unfortunately I for the life of me, can not figure out how to make the QProgressbar Semi Transparent. I tried setstylesheet, but it doesnt have the proper constructors(?did I use that term right?), and I also tried this code:
Qt Code: 
  1. #include <QApplication>
  2. #include <QProgressBar>
  3.  
  4. int main(int argc, char *argv[])
  5. {
  6. 	QApplication a(argc, argv);
  7. 	QWidget	*widget = new QWidget();
  8. 	QProgressBar *progress = new QProgressBar(widget);
  9.  
  10. 	QPalette palette(widget->palette());
  11. 	palette.setColor(widget->backgroundRole(), Qt::green);
  12. 	widget->setAutoFillBackground(true);
  13. 	widget->setPalette(palette);
  14.  
  15. 	QPalette palette1(progress->palette());
  16. 	palette1.setColor(progress->backgroundRole(), Qt::transparent);
  17. 	progress->setAutoFillBackground(true);
  18. 	progress->setPalette(palette1);
  19.  
  20. 	widget->show();
  21. 	return a.exec();
  22. }
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as someone in #qt said they got it working... I can get it to work on certain objects, but not QProgressbar.

Any ideas?