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CAD tip CAD tip # 5762:

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Q - question

Where to store user drawing data?

A - answer If you want to store user data within an AutoCAD drawing, there are several places you can use:
  1. Integer and real values (numbers) can be stored in the user variables USERI1-USERI5 and USERR1-USERR5 (please note that USERS1-USERS5 values are not stored)
  2. Entity-releated data can be stored in XData records of the individual drawing objects
  3. All types of data (incl. binary) can be saved with a drawing using Dictionaries (XRecords) - this is the right place to store user data
  4. String data can be also stored in the drawing properties (user values)
  5. You can also store data in attributes of an inserted block with a fixed name (not recommended)
  6. Session user data (PC-specific) can be stored in the Windows Registry or in the environment variables
All these places are accessible through VisualLISP, VBA, ARX and .NET.
100% *  CAD 
23.9.2007    5794x  
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applies to: AutoCAD ·

See also:
Tip 11145:AutoCAD: Customization file load failed.
Tip 11052:How to add your own chain type to the roller chain generator?
Tip 11016:How to copy Revit custom colors to another PC?
Tip 10709:How to create a profile from imported XYZ points in Fusion 360?
Tip 10702:How to find which AutoCAD version was used to save a particular DWG drawing?

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