Block insertion units (DXF group code 70 on BLOCK_RECORD)
Block scalability flag (DXF group code 281)
Block explodability flag (DXF group code 280)
OptionalextensionThe objectId of the extension dictionary owned by the object. If the object does not own an extension dictionary, then the returned objectId is set to undefined.
Block-type flags (DXF group code 70 on BLOCK / BLOCK_HEADER). See AcDbBlockTableRecordFlag.
The object id of the associated AcDbLayout object in the Layouts dictionary
The name of the symbol table record
OptionalobjectUnique identifier for the object
The base point of the block in WCS coordinates
OptionalownerIdentifier of the object that owns this object
Path name of the externally referenced drawing when this block is an xref (DXF group code 1 on BLOCK). Empty when not an xref or the path is unknown.
OptionalpreviewPreviewIcon binary payload (DXF BLOCK_RECORD group 310), typically a DIB (BITMAPINFO + bits). Stored as raw bytes rather than hex to save memory.
Interface defining the attributes for block table records.