QGLWidget doesn't hide

[wysota]

I'm not sure if this is really the official line - it's more like the current generation of Qt developers doesn't know QWS themself anymore. When I had to deal with these issues ( 4.6, 4.7 days ) the official line was, that QPA is the new thing and QWS won't be touched anymore. But QPA 4.8. was declared as "not worth to be documented yet" - so the situation is quite unsatisfying at the moment. Guess the strategy today is simply waiting for Wayland.

One of the videos from last DevDays, the one on QPA in Qt5 contains a quote from the developer (AFAIR even with a slide to support that) that QWS doesn't support OpenGL. He also says it is technically possible to combine the two after a lot of struggle but it depends on the hardware and QWS simply isn't prepared for it.