How to connect built in models with a custom model?

[MStarha]

In Relm4 one creates models to represent the state, but some GTK4 widgets have their own models like SpinButton or Scale. How do I connect the undelying model to my model so that both update simultaneously? Do I have to implement GObject functionality for my model and bind the properties?

[AaronErhardt]

Relm4 0.6 introduced data bindings to address this problem. However, they are not covered by the book yet.

You can find documentation for them here and an example here.

I hope this helps you :)

[MStarha]

Wonderfull, thank you.