https://bugs.winehq.org/show_bug.cgi?id=25912
--- Comment #48 from Ruslan Kabatsayev b7.10110111@gmail.com --- Created attachment 51739 --> https://bugs.winehq.org/attachment.cgi?id=51739 Test Qt source to reproduce the problem
I think this problem is the same as the one I see with this test Qt application (source only attached, tell me if you need compiled binary and necessary Qt/gcc libs):
When I launch the test in Windows, clicking "Toggle color" gives me the color which coincides with the one written in the title bar, so this is OK.
But when I run it in Wine, it initially shows white, but pressing the button doesn't update the screen. Thus when I press the button, the window title doesn't correspond to the color shown. If I make the window inactive or resize it, the color synchronizes with window title. But pressing the button again desynchronizes it back.