Lisp: system variable to ignore snaps?

Can anyone tell me if there is a system variable that will cause a lisp program to ignore all snaps? I thought there was but I can't seem to find it.

---Thanks

AJS

need somehow to set osmode temporarily to a value of 0

(setvar "OSMODE" 0)

but it is better to save "what it was" and restore that afterwards. It can be done with a boolean function to toggle but I can't remember what that is.

One from the guru himself:

;;  CAB  02.04.08
 (defun Set_osmode (flg) ; nil=OFF  t=ON
   (if (or (and flg (>= (getvar "osmode") 16383)) ; ON & osmode is off
           (and (null flg) (<= (getvar "osmode") 16383)) ; OFF & osmode is ON
       )
     (setvar "osmode" (boole 6 (getvar "osmode") 16384)) ; Toggle osmode
   )
 )

When using with something like possibly the line function:

(command "_line" "_non" pt1 "_non" pt2.... etc etc)

Will ignore snaps.

Thanks for that bit of code. Much appreciated!

---AJS

No probs

Not quite as elegant as CAB's solution but a simple resolve i've used in the past was

(Setq os_val (getvar "osmode"))
(Defun C:myfunction()
 ;Function code here

(setvar "osmode" os_val) ; last line of code
)

Isn't practical for debugging but works pretty well other than that.