Re: Feature question: waiting on a plot window

[sfeam <sf...@us...>]

On Sunday, 19 August 2018 20:25:24 Dima Kogan wrote:
> Dima Kogan <gn...@di...> writes:
> 
> > Ethan A Merritt <sf...@us...> writes:
> >
> >> On Friday, August 17, 2018 1:15:24 PM PDT Dima Kogan wrote:
> >>>
> >>> I'm looking for a feature that (I think) doesn't exist currently. Want
> >>> to ask first, in case something DOES exist that I'm not seeing.
> >>
> >> The command you are looking for is
> >> 	pause mouse close
> 
> This works in its most basic form, which is awesome. Thanks! But I'm now
> going to be a pain in the butt. For a gnuplot-using application to work
> reasonably, this needs to only wait for a window-close event when one is
> coming: i.e. when a window is open. Scenarios that could happen:
> 
> 1. User already closed the window before I send my "pause mouse close"

That sounds like a case of "well then don't do that".
If the parent program sends the plot command and the pause command
in immediate succession the time window in which that race could happen
would be very small.  If the commands do not come in immediate
succession then maybe the program logic needs re-thinking.
Can you give a more complete example of the flow of events?

> 2. We're using a non-interactive terminal (dumb, pdf, etc etc)
> Ideas on handling that?

So far as I know, in that case the next <\n> in the input stream
will terminal the "pause" command.  Does that not work for you?

	Ethan