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CAD tip # 5666:

Question

CAD
% platform category

How to suppress the Read-Only warning on DWG file open?

There is no AutoCAD variable which could disable the Read Only message (dialog box).

But you can use a VisualLISP utility to open R/O DWG drawings without this message. You can even redefine your standard OPEN command:

(vl-load-com)
(command "._UNDEFINE" "_OPEN")
(defun C:OPEN ( / fn)
 (if (setq fn (getfiled "Open R/O" "" "DWG" 0))
  (vla-activate (vla-open (vla-get-documents (vlax-get-acad-object)) fn :VLAX-TRUE))
 )
)
(princ "\nCommand OPEN redefíned, use _REDEFINE to revert")(prin1)

Just load this LISP code into your AutoCAD session (with APPLOAD, automatically via .MNL, ACAD.LSP, etc.) and start the OPEN command. For scripts, use (getstring) instead of (getfiled).

See also Tip 2063.

ACAD

* CAD

19.7.2007 9664x

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applies to: AutoCAD ·

See also:
Tip 8794:	Display CAD model in true size 1:1 on your monitor.
Tip 8532:	Import of 3D DWF files back to editable 3D models.
Tip 8183:	Convert surface (mesh) model to 3D solid body.
Tip 8008:	What file formats can be saved from SketchBook Designer 2012?
Tip 7925:	DWGsync - synchronized co-viewing of multiple DWGs.

Selected tip: W3D Parse Error when viewing a DWF file from Inventor.

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