topic ; error: bad argument type: fixnump: nil in Visual LISP, AutoLISP and General Customization Forum

; error: bad argument type: fixnump: nil

taitrongsong — Mon, 13 Nov 2023 13:57:55 GMT

i have a code to set default Printer for Dialog DCL, but, I keep getting an error: "bad argument type: fixnump:". How i fix it, tks all.

(setq khh (getvar "ctab"))
(setq ad (vla-get-activedocument (vlax-get-acad-object)))
(vla-RefreshPlotDeviceInfo (vla-get-activelayout ad))
(setq DEVICELIST (vlax-safearray->list (vlax-variant-value
(vla-getplotdevicenames (vla-item (vla-get-layouts ad) khh)))))

(setq k2 (setq mk (vla-get-activelayout (vla-get-activedocument (vlax-get-acad-object)))
con (vla-get-configname mk))))

(setq k1 (vl-position k2 DEVICELIST))
(if (= k1 0) (setq k1 1))
(setq k3 (itoa k1))
(set_tile "selections_1" k3)

Re: ; error: bad argument type: fixnump: nil

pbejse — Mon, 13 Nov 2023 17:04:26 GMT

@taitrongsong wrote:

i have a code to set default Printer for Dialog DCL, but, I keep getting an error: "bad argument type: fixnump:". How i fix it, tks all.

That error meant your are passing an incorrect data type to a function, in this case an integer is required, your error is most likely caused by this

(setq k1 (vl-position k2 DEVICELIST)) (if (= k1 0) (setq k1 1)) (setq k3 (itoa k1))

This means if k1 is nil, the statement (= k1 0) is false and k1 will remain as nil. the next line will require an integer

(setq k3 (itoa k1))

since k1 is not an integer, the line above will generate this error ; error: bad argument type: fixnump: nil

Try this

(setq k1 (cond ((null k1) 0) ((zerop k1) 1) (k1) ) )

(setq k1 (cond ((or (null k1)(zerop k1)) 1) (k1) ) )

HTH

Re: ; error: bad argument type: fixnump: nil

taitrongsong — Tue, 14 Nov 2023 01:47:20 GMT

Hi pbejse, I try the way you instructed but it didn't work, 😔

Re: ; error: bad argument type: fixnump: nil

paullimapa — Tue, 14 Nov 2023 02:46:44 GMT

perhaps you can clarify this portion of your code:

(setq k2 ; <--- what is k2? (setq mk (vla-get-activelayout (vla-get-activedocument (vlax-get-acad-object))) con (vla-get-configname mk) ) ) ) ; <--- extra parenthesis

Re: ; error: bad argument type: fixnump: nil

pbejse — Tue, 14 Nov 2023 12:54:59 GMT

Perhaps if we can see what k1 variable value intended for maybe we can give better suggestion @taitrongsong