I used to work at a Delphi shop that switched to C++. Of course we used C++ Builder.

The component palette was identical to Delphi (and was still Object Pascal code). You could use Delphi UI components with it.

C++ support was a bit buggy in places, but not terrible. I had worse problems compiling C++ on AIX.

Delphi and C++ Builder were simply the best native UI creation tools I've ever used.