#lang racket
(letrec ((a 1) (b (add1 a))) (list a b))
Runs fine in DrRacket, but with debug gives me two times a warning window as
follows:
b: undefined;
cannot use before initialization
context...:
loop
C:\Program
Files\Racket-6.2.900.3\share\pkgs\drracket\gui-debugger\marks.rkt:110:2
On 10/06/2015 12:33, Michael Titke wrote:
I changed from one OS to another and I was missing a simple feature:
automatic password generation. To fill the gap with a Scheme I
implemented such a generator as a command line tool respectively
/crypto sweet/.
After having read /SRFI 27: Sources of
I changed from one OS to another and I was missing a simple feature:
automatic password generation. To fill the gap with a Scheme I
implemented such a generator as a command line tool respectively /crypto
sweet/.
After having read /SRFI 27: Sources of Random Bits/ I decided to
implement my al
Maybe you can derive a class my-list-box% from list-box% and catch the
`on-subwindow-char` event:
http://docs.racket-lang.org/gui/window___.html#%28meth._%28%28%28lib._mred%2Fmain..rkt%29._window~3c~25~3e%29._on-subwindow-char%29%29
and then manually trigger the same callback as the button (it's b
Hello,
I know we can assign a keyboard shortcut on a menu%, but I try to do the
same thing with a button%. Is that possible ?
In my case : I have a list-box% and a "Delete button", I want that when
I press "DEL" key on my keyboard, it deletes the selected item in the
list-box%.
Thanks in a
Le 03/06/2015 21:16, Laurent a écrit :
That may depend on the OS and the window manager, but you can try to set
the parent of all frames (except the first) to the first frame you create.
Yes, that works. If I have a main frame, the second window I want to
create, must be a dialog% with the "mai
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