I tried queue-callback this evening. Just what I needed! Thank you.
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I tried queue-callback this evening. Just what I needed! Thank you.
On Monday, November 19, 2018 at 6:31:04 PM UTC-6, Alex Harsanyi wrote:
>
> The `send-message-to-window` has a corresponding `on-message` method which
> needs to be implemented in the target control for it to do something
The `send-message-to-window` has a corresponding `on-message` method which
needs to be implemented in the target control for it to do something useful
so it is not a general replacement for `PostMessage`, but it can be used
for cases where PostMessage is called with WM_USER, messages.
The
> On Nov 19, 2018, at 2:06 PM, Matthew Flatt wrote:
>
> Although Racket-on-Chez is not yet ready to replace the existing
> implementation of Racket for most purposes, it should generally work
> now --- and it might even be useful for some purposes. Many, many
> details have to be right for
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
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
If you use Travis CI with Greg's wonderful
https://github.com/greghendershott/travis-racket script, as of this morning
you can build against the Racket-on-Chez snapshots by adding a
"RACKET_VERSION" of "HEADCS" to your build matrix.
-Philip
On Mon, Nov 19, 2018 at 5:06 PM Matthew Flatt wrote:
The Utah snapshot site now includes Racket-on-Chez builds for x86_64
Windows, Mac OS, and Linux:
http://pre.racket-lang.org/
-> follow the "University of Utah" link
-> scroll down to "Racket CS"
Although Racket-on-Chez is not yet ready to replace the existing
implementation of Racket for
The package build server runs overnight, so the documentation should show
up some time tomorrow morning.
Maybe, though, it would be better if the catalog recognized that there is
documentation in the "info.rkt" file and gave a more specific message when
the only problem is that it just hasn't
Thanks Jay, it looks like it worked. Or at least, "raco pkg install
plisqin" works. But I'm not sure why "This package needs documentation"
still shows up. Is something wrong with my info.rkt, or should I give PLT
some more time?
David, thanks for your interest. Did you install using "raco pkg
I haven't done a lot of work with the GUI so there might be a more
appropriate mechanism that I'm not aware of, but I suspect that async
channels would fit your needs:
https://docs.racket-lang.org/reference/async-channel.html Define a
channel, have one GUI element read from it and other GUI
On Mon, Nov 19, 2018 at 11:50 AM Jay McCarthy
wrote:
> That error means, "The package server knows about this package but
> never got a checksum, so I'm giving up." It would be fixed once the
> server updates (which I just noticed it do after I kicked it for
> Kramer)
>
Cool, thanks for letting
That error means, "The package server knows about this package but
never got a checksum, so I'm giving up." It would be fixed once the
server updates (which I just noticed it do after I kicked it for
Kramer)
Jay
On Mon, Nov 19, 2018 at 11:47 AM David Storrs wrote:
>
> I tried to install it and
I tried to install it and got this:
$ raco pkg install plisqin
Resolving "plisqin" via
https://download.racket-lang.org/releases/6.11/catalog/
Resolving "plisqin" via https://pkgs.racket-lang.org
raco pkg install: cannot use empty checksum for Git repostory package source
source:
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
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