System Variable Entry: EXTNAMES

EXTNAMES

integer

1

no

drawing; saved in drawing

Controls the characters accepted for the names of blocks, dimension styles, layers, and other named objects.

• snvalid

AutoCAD and BricsCAD. AutoCAD all; BricsCAD V20+.

• AutoCAD: https://help.autodesk.com/view/ACD/2026/ENU/?guid=GUID-8EC065EC-D551-4E02-9C5A-A33D1DB80B05
• BricsCAD: https://help.bricsys.com/en-us/document/system-variable-reference/e/extnames-system-variable