Re: [racket-users] TCP listening & custodians

The difference is the state that the TCP port is left in at the protocol level as managed by the OS. For more information, look for "TIME_WAIT" in a TCP reference, such as "TCP/IP Illustrated" by Stevens. The "More" tutorial avoids the problem by passing #t as the third argument to `tcp-listen`:

[racket-users] TCP listening & custodians

Hi all, The code below is a simple server based on the web server in the “More: Systems programming in Racket” tutorial. This behavior is puzzling me: I run the server (from the OS X Terminal) and connect a client. After a wait, the client is disconnected by the timeout (shown in red). I halt

Re: [racket-users] Adding right-click functionality in a list-box%

You could get approximately the right behavior using `get-first-visible-item` and `number-of-visible-items` to compute the item under the mouse. I think we'd have to add new things to `list-box%` to get the right answer reliably, though. At Thu, 23 Feb 2017 12:59:59 +, Erich Rast wrote: >

[racket-users] TFPIE 2017 CFP

TFPIE 2017 Trends in Functional Programming in Education, 2017 https://www.cs.kent.ac.uk/people/staff/sjt/TFPIE2017/ The sixth workshop on Trends in Functional Programming in Education, 2017, which is to be held on the Canterbury campus of the University of Kent on Thursday, 22 June,

[racket-users] Adding right-click functionality in a list-box%

While I'm working on GUI issues another question came up. Is there a way to add right-click functionality to a list-box? I'd like the selection to jump to the respective row on a right-click (btw, right-clicking does change the selection when the list-box gets focus but not afterwards), and

Re: [racket-users] Resize panels inside panels

Your example works and made me realize that I've accidentally removed a list-box *inside* the panel rather than the panel itself in my application. No wonder it didn't work! Thank you so much! Best, Erich On Thu, 23 Feb 2017 05:17:23 -0700 Matthew Flatt wrote: > If so,

Re: [racket-users] Resize panels inside panels

At Thu, 23 Feb 2017 10:09:59 +, Erich Rast wrote: > I have an editor-canvas A subclasses inside a vertical-panel subclass B > and below A there is another vertical-panel subclass C in B. C is shown > or hidden by removing and adding it via change-children in B. > > However, even though A has

Re: [racket-users] generate sentences

Wow, it's really a good curriculum. Just have to drop in to say something, im not doing this exercise for some course, there is no teacher. I was just massively sad and when i got up i need to do something that makes some sense. After lots of thinking, i just assume that there is this kind of

[racket-users] Resize panels inside panels

I have an editor-canvas A subclasses inside a vertical-panel subclass B and below A there is another vertical-panel subclass C in B. C is shown or hidden by removing and adding it via change-children in B. However, even though A has stretchable-height set to #t, it does not resize to fill the