[racket] scrolling panels

At Wed, 13 Jul 2011 08:05:30 -0400, Carl Eastlund wrote:
> On Wed, Jul 13, 2011 at 7:50 AM, Matthew Flatt <mflatt at cs.utah.edu> wrote:
> > At Wed, 13 Jul 2011 13:20:57 +0400, "Yuriy Kovalev" wrote:
> >> In release notes for v5.1.1 written: "`racket/gui' library now supports
> >> scrolling panels". Despite this, I can't find in manual, how to use it. There
> >> are scrolls for canvas, but not for panels. Where I can see this
> >> information?
> >
> > The `panel%' class and subclasses accept 'hscroll and 'vscroll styles.
> >
> > See the next-to-last paragraph at
> >
> >  http://docs.racket-lang.org/gui/panel_.html?q=panel%25
> >
> > for more information.
> 
> It appears that panels can only specify whether scrollbars are present
> or absent, while canvasses have a lot more control over what
> scrollbars do.  Is there any particular barrier to adding the missing
> functionality to panels?

Yes, but what would you like to do with panels that doesn't currently
work?