[racket] reparent gui object

Wonderful! Thanks Matthew, that will make a number of things a lot easier
now.

On Sat, Jan 22, 2011 at 04:30, Matthew Flatt <mflatt at cs.utah.edu> wrote:

> I've added `reparent' as a method of `subwindow<%>'s. The original and
> new parents have to be in the same eventspace.
>
> My initial reaction to Jon's request was that it was too much trouble
> to add `reparent', but sometimes I underestimate how much easier things
> have become with the `racket/gui' rewrite. The platform-specific part
> of the addition was trivial. Most of the work is just in checking that
> a reparenting request is sensible (e.g., doesn't create a cycle).
>
> At Fri, 21 Jan 2011 06:09:57 -0600, Robby Findler wrote:
> > No, it isn't possible with the current GUI toolkit to do that.
> >
> > Robby
> >
> > On Thu, Jan 20, 2011 at 12:34 PM, Jon Rafkind <rafkind at cs.utah.edu>
> wrote:
> > > Is there a way to change the parent of a gui object? (anything from the
> > > framework collection)
>
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