Multiple values in the assoc 341

[tsigwing]

How do I get all of the assoc 341 values from a viewport?

 

[Jason Piercey]

One of many versions floating around here...

(defun massoc (key alist / x nlist)
(foreach x alist
(if (eq key (car x))
(setq nlist (cons (cdr x) nlist))
)
)
(reverse nlist)
)

use it like so: (massoc 341 <your viewport dxf list>)

 

[John Uhden]

Return to the other thread. The 341 codes won't help you set frozen layers via AutoLisp.

 

[tsigwing]

True, but they will tell me which layers are currently frozen in the viewport.