Is there an advantage to use C++/Qt instead RubyQt or PyQt?

[dougui]

Hello,

I want to create a desktop application and I want to know if there is an advantage to use C++/Qt instead RubyQt or PyQt.

Can I use Qt Creator will all languages?
Is there all features?
Can I have some limitations?

Thanks!

[sierdzio]

Most probably, both Python and Ruby bindings are lagging behind the C++ code. You also - of course - have the additional overhead of using Python/ Ruby interpreters, so it will use more memory and CPU time to do the same tasks.

Qt Creator does not have any Ruby support, and support for Python is extremely limited (pretty much only code higlightning works).