Canvas resize/update signals connected to PyQt5/Qt5 SpinBoxes

Dear all,
I would like to react on a resize/update of the TCanvas and update a custom QSpinBoxes. I don’t know which signal should I use. I see it might be difficult, but any help or suggestion would be appreciated.
Best Wishes,

_ROOT Version: 5.34/36
Platform: Ubuntu/Linux
Compiler: Not Provided
PyQt5 Version 5.5.1


I think it will be very complicated… See for example this topic
And FYI, QtROOT is now deprecated.

Cheers, Bertrand.

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