thank you very much
the following code works well
===
#lang scheme/gui
(require 2htdp/image)
(define pic dc<%>)
(define chipset (make-object bitmap% "town.png" 'png))
(define f (instantiate frame% ("map editor")))
(define mcan%
(class canvas%
(
김태윤 wrote:
drawing on canvas what's wrong with my code?
I coded as follow and run it but nothing apear.
could sombody tell me what's wrong with my code?
#lang scheme/gui
(require 2htdp/image)
(define pic dc<%>)
(define f (instantiate frame% ("map editor")))
(define mcan%
(class canvas%
drawing on canvas what's wrong with my code?
I coded as follow and run it but nothing apear.
could sombody tell me what's wrong with my code?
#lang scheme/gui
(require 2htdp/image)
(define pic dc<%>)
(define f (instantiate frame% ("map editor")))
(define mcan%
(class canvas%
(override on-
I think Neil covered the bases pretty well. Pragmatically, the only
thing you can currently do is release a new minor version that raises
a syntax error (minimize the dependencies (and no docs) and the error
will hopefully happen quickly).
Robby
On Tue, Oct 26, 2010 at 8:50 PM, Danny Yoo wrote:
>
Danny Yoo wrote at 10/26/2010 09:50 PM:
Is there a procedure ready for revoking old PLaneT packages? Some of my
packages are obsolete or dead enough that I'd like to disable them from being
served by PLaneT, or at the very least, I'd like PLaneT to warn the user that
the package is dead. Is
Is there a procedure ready for revoking old PLaneT packages? Some of
my packages are obsolete or dead enough that I'd like to disable them
from being served by PLaneT, or at the very least, I'd like PLaneT to
warn the user that the package is dead. Is there a standard procedure
for doing marking
scouic wrote at 10/26/2010 06:48 PM:
nobody has an apache configuration to run Dr.racket files in localhost
? =/
There are several different ways to use Racket with Apache.
If you are using the Racket Web Server, then you don't necessarily need
Apache.
However, if you want, you can make Apa
nobody has an apache configuration to run Dr.racket files in localhost ? =/
_
For list-related administrative tasks:
http://lists.racket-lang.org/listinfo/users
Hi Danny,
thanks a lot for the explanation,- it worked fine, and this is very cool!
But you know, the reason I wanted to look into the source was that as a new
and proud I-never-thought-I'd-buy-something-like-that-in-my-life owner of an
Android smartphone, I wanted to look into how Moby interfa
Joe,
Check out the "racket/unit" library of dynamic, recursively-linkable
components. You can define separate signatures for constraints and
connectors, then define a unit implementing each that imports one
signature and exports the other, and finally link the two modules
together. The unit syst
On Tue, Oct 26, 2010 at 5:11 AM, wrote:
> there must be function right after parenthesis?
no:
'(1 2 3)
'("foo" "bar")
only if list is to be evaluated by not quoting them first element
should evaluate to a function.
> hello~
> while I am learning GUI programming in DrRacket,
> I don't get how s
Hi all,
I've encountered:
standard-module-name-resolver: cycle in loading at...
I understand the issue; however, I'm not sure how to resolve it while
maintaining good design. Perhaps my idea of good design is flawed.
Anyway, I'm working on a problem from SICP [1] that involves several
objects:
At Mon, 25 Oct 2010 16:41:32 +0200, "Christophe Vandenberghe" wrote:
> Even with a transparent canvas the problem persists. A transparent canvas
> just
> adds the background color of it's parent to a bitmap you add. So If you were
> to put a background image in the canvas that would be fine, but
Oops. Sorry about the first question. I thought you meant that it did *not*
work, and I didn't read enough of the code. As CV showed, 'instantiate' is
defined with special syntax. The language allows for developers to define
special syntax, too. New forms are normally closely related to the la
kty1...@gmail.com wrote at 10/26/2010 03:14 AM:
thank you for your replying
I think my case is the most former one
what I have to do if there is some problem to be able to get a route?
[..]
> * You might not be able to get a route, especially if a home router
is doing NAT. Try traceroute to se
On Oct 26, 2010, at 1:11 AM, kty1...@gmail.com wrote:
> there must be function right after parenthesis?
> hello~
> while I am learning GUI programming in DrRacket,
> I don't get how string literal can be placed right after parenthesis
> such as
> (define frame (instantiate frame% ("Example")))
That is just the instantiate syntax,
http://docs.racket-lang.org/reference/objcreation.html?q=instantiate#(form._
((lib._racket/private/class-internal..rkt)._instantiate))
From: users-boun...@racket-lang.org [mailto:users-boun...@racket-lang.org]
On Behalf Of kty1...@gmail.com
Sent: dinsd
thank you for your replying
I think my case is the most former one
what I have to do if there is some problem to be able to get a route?
On Oct 26, 2010 1:44am, Neil Van Dyke wrote:
김태윤 wrote at 10/25/2010 11:47 AM:
I want to make program that connect both computer and send and receive
dat
there must be function right after parenthesis?
hello~
while I am learning GUI programming in DrRacket,
I don't get how string literal can be placed right after parenthesis
such as
(define frame (instantiate frame% ("Example")))
(define msg (instantiate message% ("No events so far..." frame)))
(in
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