Gtk_spin_button_set_text() and GTK4

[StefanSalewski]

I have already asked him for some more details,

https://github.com/StefanSalewski/gintro/issues/191

but I think I should ask here any way. Have done already a 10 minutes Google research, but Google works very bad for me currently.

So what is the actual state in latest GTK4 for custom text formatting of GtkSpinButton?

[ebassi (Emmanuele Bassi)]

You can use the GtkSpinButton::input signal to transform the contents of the spin button into a floating point value that can be mapped onto the adjustment; and the GtkSpinButton::output signal to transform a floating point value coming from the adjustment into the contents of the spin button’s text area.

[StefanSalewski]

Your second link points me to a page which Google already gave me:

Gtk.SpinButton::output

I had the feeling that that one is an outdated page. The example used
gtk_spin_button_set_text() which seems to be not available in recent GTK4 API docs or on my local Linux computer. And not in the recent GTK4 GIR file.

[ebassi (Emmanuele Bassi)]

The example code is likely out of date; GtkSpinButton implements the GtkEditable interface, so calling gtk_editable_set_text() will replace gtk_spin_button_set_text().