Display window full screen on secondary monitor using Qt

Question

Seems to be possible with native controls (see here and here) so now I'm looking for some Qt code to do it.

Answer 1

I use this code for the second display in full screen successfully on both Windows & Linux

QRect screenres = QApplication::desktop()->screenGeometry(1/*screenNumber*/);
SecondDisplay secondDisplay = new SecondDisplay(); // Use your QWidget
secondDisplay->move(QPoint(screenres.x(), screenres.y()));
secondDisplay->resize(screenres.width(), screenres.height());
secondDisplay->showFullScreen();