UPDATETHUMBNAIL (System Variable)

Controls updating of the thumbnail previews for views and layouts.

Type:Bitcode
Saved in:Drawing
Initial value:15

The setting is stored as a bitcode using the sum of the following values:

0

Does not update previews

1

Updates previews for model space views

2

Updates previews for layout views

4

Updates previews for layouts

8

Updates previews when layouts or views are created, modified, or restored

16

Updates previews when the drawing is saved