The PBDOM_DOCTYPE class represents the document type declaration object of an XML DOM document. The PBDOM_DOCTYPE methods allow access to the root element name, the internal subset, and the system and public IDs.
In addition to the methods inherited from PBDOM_OBJECT, the PBDOM_DOCTYPE class has the following methods:
GetPublicID, SetPublicID, GetSystemID, and SetSystemID to get and set the public and system IDs of an externally-referenced ID declared in the PBDOM_DOCTYPE
GetInternalSubset and SetInternalSubset to get and set the internal subset data of the PBDOM_DOCTYPE
