The main way to avoid a default exit on Mac OS is to create a `menu-bar%` with the parent 'root. That menu bar becomes active when no windows (i.e., frames) are open.
Another way is to not rely on the implicit `(yield (current-eventspace))` of a GUI executable, and instead use something like `(yield never-evt)` so that the application doesn't exit until `exit` is used. At Fri, 27 Apr 2018 12:39:21 -0500, Philip McGrath wrote: > I know that, on Mac at least, it's expected behavior for the application to > exit when all windows are hidden with `(send frame show #f)`. I personally > think this is a great default, because it prevents the annoying behavior of > other applications that hang around open even when you mean to have closed > them unless you explicitly "quit". I believe there is a way to stop this > from happening when it makes sense for the application to be able to exist > with no windows (I think DrRacket does this, for example), but I've never > tried. > > I wonder, though, about what you say about using a tcp server in another > thread: do you mean a Racket thread, a Racket place, or a machine thread > through some other mechanism? Racket's threads are "green" — they all run > in the same machine thread, giving you concurrency but not parallelism — > so, if that's what you mean, you could communicate over a channel or other > synchronization construct rather than converting messages to TCP-able > bytes. Using the Racket constructs to communicate between Racket threads > would certainly be more convenient than going through TCP, and probably > more efficient as well. > > -Philip > > On Fri, Apr 27, 2018 at 12:21 PM, Tony Fischetti <tony.fische...@gmail.com> > wrote: > > > > > Hi all, > > > > I've been stuck on this for a while. > > Short version: When I hide a GUI window with `(send frame show #f)` the > > application (on a mac, at least) *exits* when I'd like it to just hide the > > application and leave it still running. > > > > More information: > > I'm developing a small (personal) application launcher on macOS to help me > > learn Racket. Since I'd like the input window to come up lightning quick, I > > currently have the application spin up a tcp server in another thread. It > > responds to TCP events by hiding and showing the input window. Everything > > works, except that when the main window is hidden, the application closes > > and the server with it. > > > > Any ideas would be greatly appreciated! Thanks!! > > > > Tony > > > > -- > > You received this message because you are subscribed to the Google Groups > > "Racket Users" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to racket-users+unsubscr...@googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. > > > > -- > You received this message because you are subscribed to the Google Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.