Represents a doclink in a rich text item.
To access a NotesRichTextDocLink object, use the NotesRichTextNavigator methods in conjunction with the type RTELEM_TYPE_DOCLINK.
Hotspot text representing a doclink can be retrieved by navigating to the doclink, enclosing it in a NotesRichTextRange, and retrieving the associated text with TextRun. If the doclink is not a hotspot, no text is present.