Topic: gui for linux - on what?
On mind comes only gtk on Rust and it is possible on wxWidgets Haskell'e. I do not know about gtk for Haskell'a, probably, approaches. All. - with ++ - I do not want - Python - I do not want, it is necessary, that source codes have been closed. - C# - about mono anything good as a whole did not hear. - Java - unless. Though, heard that there too for GUI jambs are. It is desirable, but it is optional, that it was .