AutoCAD Visual LISP / AutoLISP :: Creating New Drawing With Specific Template

Sep 20, 2013

I have some code that starts a new drawing with a specific template from a lisp routine

(defun ghd:load_newdwg (template / ae-acad-object newdwg)
  (setq ae-acad-object (vlax-get-acad-object))
  (setq newdwg (vla-add (vla-get-documents ae-acad-object) template))
  (vla-put-activedocument ae-acad-object newdwg)
)

The template location and file is stored in variable clienttemplate (and is not the standard template path set under options). All works okay except if I close the new drawing, when I return to the previous drawing that was current when the new drawing was created (i.e. the drawing that the routine was run from). I get the following error:

Command: ; error: Exception occurred: 0xC0000005 (Access Violation)
; error: Unknown exception occurred
; warning: unwind skipped on unknown exception

I assume this has something to do with the original routine not closing/finishing before switching to the new drawing. This is the last line of the routine:

(cond ((= startnewdwg 1) (ghd:load_newdwg clienttemplate)))

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or
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    ------------------------

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[Code]...

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See my initial start of the program.

(defun C:MLD ()
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