get-interactions-canvas in drscheme:unit:frame<%>
( -> (instanceof (derivedfrom send a-drscheme:unit:frame get-interactions-canvas)drscheme:unit:interactions-canvas%))
This canvas is the canvas containing the
get-interactions-text. It is initially the bottom half of the drscheme window.
This canvas defaults to a drscheme:unit:interactions-canvas%
object, but if you use the
drscheme:get/extend:extend-interactions-canvas procedure,
it will use the extended class to create the canvas.