MCD_STR CMarkup::GetParentElemPath() const;

GetParentElemPath is only in CMarkup Developer and the free XML editor  FOAL C++ scripting.

The GetParentElemPath method is the same as the GetElemPath method except that it returns the absolute path of the parent position element. If the parent position is at the top of the document, it returns an empty string. See Navigating Levels in CMarkup and Paths In CMarkup.