[plt-scheme] OS-dependent behavior of canvas%'s on-subwindow-char method (v3.99)

[Gregory Cooper]

Hi,

In v3.99 under MacOS and Linux, I can override the on-subwindow-char
method in a canvas% to respond to key events.  However, if I do the
same in Windows XP, my callback doesn't get called.  Is this
intentional?

Thanks,
Greg