When developing for GNU Radio, should I use WX GUI or Qt GUI widgets?

Question

I'm starting to use GNU Radio. Which of the available GUI toolkits should I choose?

Answer 1

You should always prefer Qt these days – it's the default GUI toolkit for GNU Radio 3.7. No-one develops the WX functionality anymore, and bugfixes haven't been available in a long time. Also, it is well-known that WX has some performance issues, especially on integrated graphic cards.

Furthermore, WXGui has been completely dropped from the current (2018) release of GNU Radio, 3.8.