Chapter 4 -- TABLES Section
BLOCK_RECORD

The following group codes apply to BLOCK_RECORD 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."

BLOCK_RECORD group codes
Group codes Description

100

Subclass marker (AcDbBlockTableRecord)

2

Block name

340

Hard-pointer ID/handle to associated LAYOUT object

310

DXF: Binary data for bitmap preview (optional)

1001

Xdata application name "ACAD" (optional)

1000

Xdata string data "DesignCenter Data" (optional)

1002

Begin xdata "{" (optional)

1070

Autodesk Design Center version number.

1070

Insert units:
0 = Unitless; 1 = Inches; 2 = Feet; 3 = Miles; 4 = Millimeters;
5 = Centimeters; 6 = Meters; 7 = Kilometers; 8 = Microinches;
9 = Mils; 10 = Yards; 11 = Angstroms; 12 = Nanometers;
13 = Microns; 14 = Decimeters; 15 = Decameters;
16 = Hectometers; 17 = Gigameters; 18 = Astronomical units;
19 = Light years; 20 = Parsecs

1002

End xdata "}"