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List:       racket-users
Subject:    [plt-scheme] Dynamic menu-item% callback assignment?
From:       greg.johnston () gmail ! com (Greg Johnston)
Date:       2007-02-22 15:12:03
Message-ID: 11b0d47d0702220712g637e20c9sa250ce6a46460aa8 () mail ! gmail ! com
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On 2/22/07, Daniel Yoo <dyoo at cs.wpi.edu> wrote:
> On Thu, 22 Feb 2007, Greg Johnston wrote:
>
> > Is there any way to assign a callback later, or do I need to work around
> > this?
>
> Hi Greg,
>
> Yes; I have a small example of this in:
>
>     http://hkn.eecs.berkeley.edu/~dyoo/plt/mr-ed-notes.txt
>
>
> Here's the example:

Oh, thanks. Actually, I've already read that page and it isn't
entirely what I want. The problem is that not only the callbacks but
the actual menu-item%s are dynamic (created from a file which is
parsed). I think I've figured it out, though, because that reminded me
of something...

I can create an assoc-list of menu-item% IDs and callbacks and then
mutate those. I'm pretty sure that will work...I'll put some of the
code up here to demonstrate when it does.

Thanks,
Greg


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