The InstanceDefinition type exposes the following members.
Returns the archive file status of a linked instance definition.
Index of this instance definition in the index definition table.
An object from a work session reference model is reference a reference object and cannot be modified. An object is a reference object if, and only if, it is on a reference layer.
Number of objects this definition uses. This counts the objects that are used to define the geometry. This does NOT count the number of references to this instance definition.
Controls how much geometry is read when a linked InstanceDefinition is updated.
The hyperlink URL that is executed when the UrlDescription hyperlink is clicked on in the Insert and Block UI
The URL description displayed as a hyperlink in the Insert and Block UI