GetOwnerDocumentObject – PB Docs 2019

This example creates a PBDOM_DOCUMENT based on the following
DOM tree:

The PowerScript code obtains the root element, uses it to
obtain the child element, and then obtains an array of the child
element’s own children. This array has a single item, the PBDOM_TEXT
object with the text Data. The array can be cast to a
PBDOM_CHARACTERDATA object because it does not contain any objects
that are not derived from PBDOM_CHARACTERDATA,

The call to GetOwnerDocumentObject returns a PBDOM_OBJECT,
which is stored in a PBDOM_DOCUMENT called pbdom_owner_doc. The call
to Equals tests whether the owner document of the “Data” PBDOM_TEXT
and the main document, referenced using pbdom_doc, refer to the same
document.

This example creates a PBDOM_DOCUMENT based on the same DOM
tree as example 1. It creates a PBDOM_TEXT, stores it in the
PBDOM_CHARACTERDATA variable pbdom_chardata, and assigns it some
text. Objects created in this way are standalone objects — they
have no owner document or parent. Calling GetOwnerDocumentObject on
pbdom_chardata returns null.

The code then adds pbdom_chardata as a child to the data
element. This implicitly imports pbdom_chardata into the original
document. pbdom_chardata now has an owner document and a parent (the
data element). Calling GetOwnerDocumentObject on
pbdom_chardata returns the original document. When the returned
PBDOM_DOCUMENT has been assigned into pbdom_owner_doc, a call to
Equals to compare pbdom_doc with pbdom_owner_doc returns
true: