- Determine window sizes according to screen size and turn off
scrolling.
- Center the window to get it out of the way of taskbars.
- Make the window top-most.
- Turn off scaling so that coordinates passed to the QWindow
child match device coordinates and the child is positioned
correctly.
- Make the child window a yellow raster window for easier
debugging.
Task-number: QTBUG-45956
Change-Id: I05864770f8ed638d0a36f3e3f2afed73d2952436
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>