I've started to write a GUI with lablgtk and got stuck when trying to
"update" a persistent data structure from a callback. That made me
look at FRP and thought it would probably be worth a try..
Is there any FRP library I can use with GTK? I think I saw something
about React and gtk but I can't find it anymore. I'm not afraid of
working on that aspect myself but wanted to know if there was already
something or maybe at least some work on that.
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You may be interested in Amthing( https://forge.ocamlcore.org/projects/amthing/ ) is,
under development, a FRPed GUI library written by OCaml.
Amthing dose not have GUI components yet, but has simple sprite system
( labels, images, rectangles and any visible objects can be puted on screen).
It's already work well on X11. You can read some examples in the source repository.