Anything that works with gtkmm3 will not work with gtkmm4.
I don't know much about goocanvasmm. I just looked at the configure.ac files in GitLab's repo. I can see that a goovanvasmm-3, meant to work with gtkmm4, has been started in the master branch. But it has not been updated for a long time. Gtk4 is still changing rapidly. I'm trying to keep gtkmm4 updated to fit with the latest changes in gtk4, but I only rarely succeed. My guess is that goocanvasmm-3 will need an extensive update.
Kjell On 2020-03-04 20:44, Klaus Rudolph wrote:
I see in the mailing list that gtkmm4 is coming... :-) Will goocanvasmm-2 also work with upcoming gtkmm4? Maybe is there a new release like goocanvasmm-3? Can anyone test if it still compiles within gtkmm4. Regards Klaus _______________________________________________
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