问题
I found the reactive-banana-wx and wonder if there is also a similiar package for gtk as reactive banana should support gtk according to http://www.haskell.org/haskellwiki/Reactive-banana
回答1:
The reactive-banana library can be used on top of any imperative event-based library via the AddHandler type.
However, it is often convenient to write a little glue code that is specific to the library you want to build on. This is what reactive-banana-wx does for the wx library. I have trouble installing GTK on my Mac, that's why I haven't written a similar glue code package for the gtk library. However, other people have used reactive-banana with gtk, for instance John Lato in his jaek project.
来源：https://stackoverflow.com/questions/17265910/is-there-a-reactive-banana-gtk