[Bug 47945] dinput:mouse regression on Wine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=47945

--- Comment #8 from Alistair Leslie-Hughes  ---
Created attachment 65502
  --> https://bugs.winehq.org/attachment.cgi?id=65502
Fix regression

This fixes the issue with static window taking focus away from the main window.

In my test runs, one test is still failing intermittently but that's better
than 5 always.

I've sent this to wine-devel for review but placing here so it doesn't get
lost.