UNDERLAYDEFINITION

TABLESTYLE

OBJECTS Section

VISUALSTYLE

UNDERLAYDEFINITION

The following group codes apply to UNDERLAYDEFINITION symbol table entries. In addition to the group codes described here, see Common Group Codes for Symbol Table Entries. For information about abbreviations and formatting used in this table, see Formatting Conventions in This Reference.

UNDERLAYDEFINITION group codes
Group Code	Description
0	Object name (UNDERLAYDEFINITION)
5	Handle
102	Start of persistent reactors group; always “{ACAD_REACTORS”
330	Soft-pointer ID/handle to owner dictionary
102	End of persistent reactors group, always “}”
100	Subclass marker (AcDbUnderlayDefinition)
1	Underlay path and file name
2	Underlay Name