[janvidar]

I also did some VB classic and Delphi back in the day. I later moved on to C++ with Qt.

I've not been working on GUI programming much since, but I really enjoyed the Qt experience; good tools and superior documentation.

I never liked gtk - much for the same reasons as your Windows GUI C programming; Too verbose for trivial and mundane things.

[floatboth]

It's only verbose if you use C. GTK is very nice with Rust, C++, D, Vala, Python, JS, Haskell, etc.