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CAD tip CAD tip # 858:

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A
The WRITESTAT variable is equal to 0 if the drawing is read-only (from version 14 onwards).

Another method of detecting the "read-only" state of your DWG drawing is the LISP function:

(vlax-get (vla-get-ActiveDocument (vlax-get-acad-object)) 'ReadOnly)

ACAD14ACAD2000ACLT
100% *CAD
8.1.2001    5395×  
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applies to: AutoCAD 14 · AutoCAD 2000 · AutoCAD LT ·

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