Preconditions:

• Microsoft Windows 10 operation system
• Lenovo Yoga notebook which is placed upside down (please see the picture in the attachment below)
• OpenGL Window Example (http://doc.qt.io/qt-5/qtgui-openglwindow-example.html)

Result:
when the application is executed, screen is rotated by 180° (it ignores Windows orientation settings) and whole screen is upside down