There is a send-message-to-window function ( http://docs.racket-lang.org/gui/Windowing_Functions.html#%28def._%28%28lib._mred%2Fmain..rkt%29._send-message-to-window%29%29), though I've never used it, and it sounds like it is different from what you describe.
-Philip On Mon, Nov 19, 2018 at 5:22 PM Alex Harsanyi <[email protected]> wrote: > > > I think `queue-callback` is the closest "general" equivalent: it allows > invoking methods on GUI objects from outside the event handler thread. It > can also be used to schedule some work to be done outside a GUI widget's > callback invocation. > > If you actually want to post specific messages to a window, you will have > to map "PostMessage" via FFI and you can find the target window handle > using `get-client-handle`. This will only work on the windows platform. > > > https://docs.racket-lang.org/gui/Windowing_Functions.html?q=ququq-callback#%28def._%28%28lib._mred%2Fmain..rkt%29._queue-callback%29%29 > > Alex. > > On Monday, November 19, 2018 at 7:42:12 PM UTC+8, Jason Stewart wrote: >> >> In Windows, we have a SendMessage() function for dispatching a window >> event synchronously, and PostMessage() for asynchronously queuing an event >> to a specified window from any thread. >> >> Is there a way to do PostMessage() from Racket's GUI library? >> >> Eventspaces feels warm, but couldn't find what I was looking for in it: >> >> >> https://docs.racket-lang.org/gui/windowing-overview.html?q=sleep#%28part._eventspaceinfo%29 >> >> >> -- > 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 [email protected]. > 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
