get-definitions-canvas in drscheme:unit:frame<%>

• (send a-drscheme:unit:frame get-definitions-canvas) -> (instanceof (derivedfrom drscheme:unit:definitions-canvas%))

  This canvas is the canvas containing the get-definitions-text. It is initially the top half of the drscheme window.

  This canvas defaults to a drscheme:unit:definitions-canvas% object, but if you change the drscheme:get/extend:extend-definitions-canvas procedure, it will use the class in the parameter to create the canvas.