I fear you may be right: I see that the Dr. Racket's "Colors">"Color
Schemes" preferences tab also does not scroll in response to the
On Wed, Mar 1, 2017 at 10:54 PM, Alex Harsanyi <alexharsa...@gmail.com>
> On Thursday, March 2, 2017 at 10:56:30 AM UTC+8, Philip McGrath wrote:
> > Almost — thanks! (I'm sure I read over that page of the docs, but I
> somehow missed 'vscroll.)
> > The one thing that isn't working is scrolling with the mouse/trackpad.
> It seems like I might need to override on-subwindow-char to listen for
> 'wheel-up and 'wheel-down, which I can do, but I'm not finding how to
> change the scrolling position of the panel if I do catch one of those
> events. (Or maybe there's a way to do it without implementing it myself?)
> I don't think you will be able to update the scroll-bar positions. The
> scroll functionality that is implemented for panel objects is limited to
> automatic scrolling and the racket GUI code would have to be updated to
> allow changing it programmatically.
> BTW, I am looking forward to being proven wrong on this, as I could use
> the functionality myself :-)
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