Freeze using QTimer with interval 0

[Chris Lux]

Hi,
thanks for the answer, but how does this affect the Aero/non-Aero case and how can it be solved. It worked before and still is a default case as proposed by Qt itself.

[wysota]

thanks for the answer, but how does this affect the Aero/non-Aero case and how can it be solved.

Aero is Windows desktop compositor. It is (probably) the component responsible for the problem.

[Chris Lux]

this does not explain why it was working prior to Qt 4.8.x with the same Windows installation and drivers.

[wysota]

No, it doesn't. It also doesn't explain why I've known this problem from much earlier versions than 4.8.2.

[Chris Lux]

Could you elaborate on the problem please.

I am not able to reproduce it with plain Win32 tests (InvalidateRect called to force window refresh).

(just to point out, I am coding qt since version 2.x and Win32 for 13years now, so please provide some technical explanations where the problem lies...)

[wysota]

I have no idea where the problem lies. I only know that it is present -- search the forums and see for yourself.