How to generate const/enum of some api method parameter?

[well.james (sgf)]

I read the documentation but it didn't explain exactly how to do it.
This caused me a lot of inconvenience, I thought everything should be fully automatic.

DrawDibBegin last parameter wFlags
https://learn.microsoft.com/en-us/windows/win32/api/vfw/nf-vfw-drawdibdraw#parameters

Otherwise, where should I find the parameter definitions I need? Do I have to copy them manually? But this would be too inefficient. I don't want to worry about too many details.

[Andrew Arnott (AArnott)]

CsWin32 only constructs enums that are in the metadata. I'll transfer this to the metadata repo for consideration.