I thought this was a known bug that just never gets fixed. This has
given a black canvas when you click into the editor on my machine for
(letrec ((t (new text%)))
(void (new editor-canvas%
(define frame (new testframe%
[label "Editor Canvas Test"]
(send frame show #t)
On Tue, 07 Nov 2017 17:44:07 +0000
Stephen De Gabrielle <spdegabrie...@gmail.com> wrote:
> If you pop you code on pasterack or a gist I’ll test on OS X and
> On Tue, 7 Nov 2017 at 15:49, Erich Rast <er...@snafu.de> wrote:
> > Hi!
> > This is something I've been wondering for a while already but never
> > had time to ask.
> > When an editor-canvas% is set to transparent in its style list, and
> > I type in it, then the whole editor gets black and nothing can be
> > seen.
> > Shouldn't it be gray, as the window background so it looks as if you
> > type directly on the window?
> > For my purposes, I could set the background color directly
> > in a non-transparent editor-canvas%, but I see no
> > platform-independent, Racket-native way of obtaining the exact
> > window background color. Do I need to implement changes in the
> > on-paint method? Is the black canvas desired behavior?
> > [tested on Linux Mint 18.2 Cinnamon 64 bit, Cinnamon Version 3.2.7,
> > Radeon R9 280X graphics card]
> > Best,
> > Erich
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