Find suitable replacement for TerminateThread() Calls.

[Rederick5]

Not sure about how involved this is, goes a bit past my knowledge or experience but...

Microsoft labels this function call as 'dangerous' and only to be used in the most 'extreme' of circumstances.
Searching, it looks like this function is only called in :

client->inputw32.cpp

Doc on item:
https://learn.microsoft.com/en-us/cpp/code-quality/c6258?view=msvc-170

Might be worth the effort to try and refactor to a safer alternative.

[Rederick5]

Edited to remove reference to WINAPI definitions.