[gmueckl]

You're pretty much making my point for me, aren't you? UWP is a single platform interface only and the development of the bindings has taken a tremendous amount of work, as you say yourself.

Projects like sip and PySide show how much effort it takes to make Qt bindings form Python.

And all of this discussion just the bindings, not the actual widget libraries themselves and the effort that goes into those.

[oaiey]

Yepp. It is just a sub point I address. That you can successful translate c++ UI libs into other languages.

But generally, you are right. Language development is expensive enough. UI stack development is in difference to class lib development not a duty of a language developer.