https://learn.microsoft.com/en-us/windows/win32/api/winddi/nf-winddi-engmapevent?redirectedfrom=MSDN
EngMapEvent function (winddi.h) - Win32 apps | Microsoft Learn
The EngMapEvent function maps a user-mode event object to kernel mode.
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https://learn.microsoft.com/en-us/windows/win32/api/winddi/ns-winddi-fontdiff?redirectedfrom=MSDN
FONTDIFF (winddi.h) - Win32 apps | Microsoft Learn
The FONTDIFF structure describes all of the characteristics that are different between a base font and one of its simulations.
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