hi there,

with nim 2.2.4 and nimtk (on win10) I try to use `dwmSetWindowAttribute`
https://learn.microsoft.com/en-us/windows/win32/api/dwmapi/nf-dwmapi-dwmsetwindo
wattribute

like so\: https://play.nim-lang.org/#pasty=VLRMzdeD

but it does not appear to work (title bar does not turn black),

even though the python equivalent works.

anybody has a pointer what I might be doing wrong there?