Visual LISP, AutoLISP and General Customization

Posts: 20
Registered: ‎11-06-2008
Message 1 of 2 (244 Views)

test if function is loaded

244 Views, 1 Replies
02-02-2011 06:18 AM

Is there a simple way to test and see if a simple dll I created using is loaded in the current drawing?


The following obviously wont work, but this is the basic structure of what I have in mind...

(if (not vba-routines.dlll)




*Expert Elite*
Posts: 5,042
Registered: ‎10-12-2006
Message 2 of 2 (231 Views)

Re: test if function is loaded

02-02-2011 11:20 AM in reply to: kemp77

If the DLL is defining LSP functions, you can test for the presence of function "myLSPFunction" as (if myLSPFunction (progn (blah)...)).  If not, you could add a simple information LSP function to the DLL to accomplish the same thing while returning a version number or some other useful information.

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