drscheme:get/extend:extend-definitions-canvas

Next: drscheme:get/extend:extend-definitions-edit Up: Extending the DrScheme Classes Previous: Extending the DrScheme Classes

`drscheme:get/extend:extend-definitions-canvas`

The unextended class is drscheme:unit:definitions-canvas%. This canvas is used in the top window of drscheme frames.

(drscheme:get/extend:extend-definitions-canvas definitions-canvas-mixin) -> void
definitions-canvas-mixin : a procedure that accepts a class and produces a class derived from it.