ODVER (10-digit signed integer)

Structure version number.

The value must be one of the following:

ODVER1
Version-1 object descriptor structure.
ODVER2
Version-2 object descriptor structure.
ODVER3
Version-3 object descriptor structure.

Fields that exist only in the more-recent versions of the structure are identified as such in the descriptions of the fields. The following constant specifies the version number of the current version:

ODVERC
Current version of object descriptor structure.

This is always an input field. The initial value of this field is ODVER1.