[LC++]a bit off topic: GUI-lib-programming (how does it usually work?)

[Julien Claassen]

Hi!
  I know, this may be a bit off topic. But I've a dificulty:
  I'm currently programming a textbase "GUI"-lib. I want the programming API
to be similar to on of a real GUI-lib (gtk, you name them).
  Now I'm wondering, there are menus. Menus have menuitems and if you click on
one, something should happen. How is this "something should happen" part
usually done? - I thought of the java-apporach, deriving your own menu-class.
But it doesn't feel right. I have my dificulties with trying GUI-libs myself,
for I'm blind. I could write some code, but wouldn't know, if it works, like I
planned.
  Any thoughts, help on this, anyone? I would be greatful!
  Kindest regards
       Julien

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