Introduction.

This is a collection of group code that can appear in all DXF TABLES entries,
for convenience have been collected in a single list.

Table: Common Group Codes for Symbol Table Entries.

Group code Description if omitted,
defaults to
Version
introduction
-1 Application only: entity name (changes each time you open the drawing) Not omitted DXF R13
0 Entity type Not omitted DXF R10
5 Handle (except for DIMSTYLE) Not omitted DXF R10
70 Flags relevant (except BLOCK_RECORD) No default? (I'm not sure) DXF R10
105 Handle (only for DIMSTYLE) Not omitted DXF R12
102 Start pint for application "{application_name"
watch in the down tables for see the attached possible
No default DXF R14
application
dependent
After the start point until end point depends on the application
watch in the down tables for see the possibility
No default DXF R14
102 End point, "}" No default DXF R14
330 Soft-pointer ID/handle to owner object Not omitted DXF R15/2000
100 Subclass marker (AcDbSymbolTableRecord) Not omitted DXF R13
0 End of tha table, "ENDTAB" Not omitted DXF R10





Table: Attached (persistent reactors).

Group codeDescriptionVersion
introduction
102 "{ACAD_REACTORS" indicates the start point DXF R14
330 Soft pointer ID/handle to owner dictionary DXF R14
102 End point, "}" DXF R14





Table: Attached (extension dictionary).

Group codeDescriptionVersion
introduction
102 "{ACAD_XDICTIONARY" indicates the start point DXF R14
360 Hard owner ID/handle to owner dictionary DXF R14
102 End point, "}" DXF R14





Table: Common flag bit value for group code 70 (only the common ones, there can be others).

FlagsDescriptionVersion
introduction
16 Xref dependent DXF R10
32 If is set with bit 16, the Xref dependecy has been resolved DXF R10
64 This flag is only for internal functionality of AutoCAD, we can ignore it DXF R10