Arbitrary Keyboard Input

The initget function also allows arbitrary keyboard input to most getxxx functions. This input is passed back to the application as a string. An application using this facility can be written to permit the user to call an AutoLISP function at a getxxx function prompt.

These functions show a method for allowing AutoLISP response to a getxxx function call:

(defun C:ARBENTRY ( / pt1) 
  (initget 128)					 ; Sets arbitrary entry bit 
  (setq pt1 (getpoint "\nPoint: ")) ; Gets value from user. 
  (if (= 'STR (type pt1))		 ; If it's a string, convert it
	(setq pt1 (eval (read pt1)))	; to a symbol, try evaluating
									; it as a function; otherwise,
	pt1							 ; just return the value. 
(defun REF ( )
  (setvar "LASTPOINT" (getpoint "\nReference point: "))
  (getpoint "\nNext point: " (getvar "LASTPOINT"))

If both the C:ARBENTRY and REF functions are loaded into the drawing, the following command sequence is acceptable.

Command: arbentry

Point: (ref)

Reference point: Select a point

Next point: @1,1,0