The following group codes apply to ACAD_PROXY_OBJECT objects.
ACAD_PROXY_OBJECT group codes
Group code
Description
100
DXF: Subclass marker (AcDbProxyObject)
90
DXF: Proxy object class ID (always 499)
91
DXF: Application object's class ID. Class IDs are based on the order of the class in the CLASSES section. The first class is given the ID of 500, the next is 501, and so on
93
DXF: Size of object data in bits
310
DXF: Binary object data (multiple entries can appear) (optional)
330 or 340 or 350 or 360
DXF: An object ID (multiple entries can appear) (optional)
94
DXF: 0 (indicates end of object ID section)
95
DXF: Object drawing format when it becomes a proxy (a 32-bit unsigned integer):
Low word is AcDbDwgVersion
High word is MaintenanceReleaseVersion
70
DXF: Original custom object data format:
0 = DWG format
1 = DXF format
The 92 field is not used for AcDbProxyObject. Objects of this class never have graphics.