Open Source Zenity Alternatives for Qt
Zenity is not available for Qt but there is one alternative with similar functionality. The most popular Qt alternative is 
PyDialog, which is both free and Open Source. If that doesn't work for you, our users have ranked more than 10 alternatives to Zenity, but unfortunately only one is available for Qt. If you can't find an alternative you can try to filter for web or SaaS options.
- My problem was that the KDialog code is still not ported to Qt5 and it depends on various Qt4/KDE4 components. View 7 alternatives to PyDialog