[Solved] error C4996: ‘QWheelEvent::pos‘: Use position()

I recently upgraded QT from QT5.12.9 to QT5.15.2, and the compiler reported error C4996: 'QWheelEvent::pos': Use position()

Reson and Solution:

It’s easy to see that the new version has changed QWheelEvent::pos to QWheelEvent::position, and the code changes pos to position.