- graphical user interface


Button and pull-down menu graphical components can be added to the drawing area.

Primitive Action
guiAction "id [action1 action2 ...]
guiButton "id "name
guiDraw "id
guiMenu "id [name1 name2 ...]
guiPosition "id [xx yy]
guiRemove "id
Define action or actions for GUI component "id.
Create a button with label "name.
Draw GUI component "id (top left if not defined).
Create a menu with listed drop down names.
Define GUI component position [xx yy].
Remove and delete GUI component "id.


  1. GUI id's are case sensitive.
  2. Graphical components cannot be drawn at an angle.