https://bugs.winehq.org/show_bug.cgi?id=37716
--- Comment #20 from Stefan Dösinger stefan@codeweavers.com --- Created attachment 50366 --> https://bugs.winehq.org/attachment.cgi?id=50366 Focus loss backtrace
The focus loss in GTA:VC happens because of a user32.SetParent call. The attached file shows the backtrace of this call. The two windows belong to different threads. The parent window is the d3d8 focus and device window, which is also the current foreground window. I haven't found the exact place where the WM_ACTIVATEAPP(0) message is generated yet.
I don't understand the exact details yet, but it seems to be a different problem than the one that causes graw2 to crash. We should move graw2 into a different bug report.