[racket] BIG BUG! On Windows, copying a bitmap doesn't work

Sent this to just Robby, so forwarding to the list for posterity.

Also, I just tried re-opening the file on Linux and it doesn't work
there, although copying from Interactions to Definitions does work,
unlike on Windows. Here's a link to the file, in case the way it's
formatted provides a clue to why this isn't working:

https://www.dupontmanual.org/wikis/intro/ImageExercises?action=AttachFile&do=get&target=image-exercises.rkt.zip

The idea was for students to reproduce the images given so that the
test cases would pass. The black circles in the file should be the
images on this page:

https://www.dupontmanual.org/wikis/intro/ImageExercises

Todd

P.S. I'm glad we caught this before the fall. Saving files with images
and then re-opening them with black circles is a little disconcerting.
:-)
------------------------------------------------------------------------------------------

Do

(define BLAH --insert image here using menu--)

In interactions, do

> (image-beside BLAH BLAH)
pretty picture appears

Select pretty picture. Choose copy. Paste up into Definitions window.
Instead of pretty picture, black circle appears. (And it's a weird
circle that covers up parts of the text and doesn't seem right.)

Todd

On Mon, Jul 19, 2010 at 8:24 PM, Robby Findler
<robby at eecs.northwestern.edu> wrote:
> Can you provide a more precise description of what is failing?
>
> Thanks,
> Robby
>
> On Mon, Jul 19, 2010 at 7:07 PM, Todd O'Bryan <toddobryan at gmail.com> wrote:
>> I gave my students a bunch of images created with 2htdp/image to try
>> to recreate.
>>
>> All of the images involving bitmaps appear as black circles on Windows.
>>
>> Even if you create the image in the interactions window and then copy
>> it into the definitions, the same big, nasty black circle appears.
>>
>> This is true on both 5.0 and the latest nightly build.
>>
>> Todd
>>
>> P.S. Works fine on Linux, as far as I can tell. I can have my TA check
>> Mac OS after tonight's class.
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