[Bug 55336] Touhou 6 : Alt-tabbing or using DXVK breaks inputs

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55336

--- Comment #12 from YuriK7  ---
Created attachment 76872
  --> https://bugs.winehq.org/attachment.cgi?id=76872
DXVK full-screen workaround

The DXVK full-screen issue is caused because when the dinput device is created,
somehow the game window is not the foreground window, and then dinput decide to
not start the input thread. It doesn't happened with wined3d.
This patch is a workaround for that case.