[Bug 3930] HOMM/Deadlock shows black screen (game DLL calls SuspendThread inside WOM_OPEN winmm callback)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=3930

--- Comment #85 from Dmitry Timoshkov  ---
(In reply to Damjan Jovanovic from comment #84)
> (In reply to Dmitry Timoshkov from comment #83)
> > Could SuspendThread() fail in win9x mode when called for the same thread?
>
> Yes, SuspendThread(GetCurrentThread()):
> - deadlocks on all Windows versions, even 95, when running as is.
> - returns 0 instead, when newer Windows versions emulate Windows 95 or 98/ME.

It would be helpful to know what last error is set to for the failing case.
> What should Wine do?

Add a check to SuspendThread() and fail in the win9x mode?