That is very cool, Leif.

Still, I'm also interested in the original question:  if I wanted an
interactive GUI terminal in Racket, what's the best way to do it?

On Tue, Aug 29, 2017 at 7:40 PM, Leif Andersen <l...@leifandersen.net>
wrote:

> Well James, you're in luck.
>
> The short answer is, yes, yes you can.  You should check out video at
> http://lang.video (you can follow the progress either on the blog, the
> twitter feed http://twitter.com/videolang , or on github itself:
> https://github.com/videolang/video . Alternatively, you are welcome to
> arrange a call with me some time so we can coordinate our efforts.
>
>
> The (slightly) longer answer is: you can find the (private and thus
> unstable) bindings here:
> https://github.com/videolang/video/tree/master/video/private/ffmpeg;
> and my (very early) prototype NLVE widgets here:
> https://github.com/videolang/video/blob/master/video/private/editor.rkt.
> In either case, contributions are absolutely welcome. Bug reports are
> also welcome and very helpful.
>
> I hope that helps, and feel free to ask any questions. If you are
> interested in creating GUIs for Video editing we should also sit down
> for a chat some time. (Either in person or via teleconference.)
>
> Anyway, I hope you have a lovely day.
>
> ~Leif Andersen
>
>
> On Tue, Aug 29, 2017 at 3:57 PM, James <jbiomant...@gmail.com> wrote:
> > I have been working through The Racket Graphical Interface Toolkit
> documentation to learn GUI programming and I thought I would do a small but
> useful project.  The idea is to make a simple GUI front end which will
> formulate commands for ffmpeg to do various video and audio conversions on
> selected files and then run those commands.  MrLib/terminal seems like just
> the thing except there are various ways that it isn't as good as it could
> be for this kind of project.   It's mostly small things, for example, the
> cancel button is labeled "Abort Instillation" by default.  The one thing
> which is not so simple is that it looks like it is intended to just run one
> command and not create an interactive environment.  I was expecting to be
> able to send commands to the terminal% object in order to run things one
> after another.  Instead, you pass a function as a parameter when you create
> the terminal% object and it just runs that function.  So, either I have to
> close the terminal and open a new one each time I run a command or I
> suppose that I could have the function work with a thread mailbox or
> channels so that I could keep using it.  My question is whether MrLib
> Terminal the best option for this kind of work or is there a better bet?
> >
> > https://docs.racket-lang.org/mrlib/Terminal_Window.html
> >
> > James
> >
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