SAX2 Visual Basic Common Notices

MSXML 5.0 SDK

Microsoft XML Core Services (MSXML) 5.0 for Microsoft Office - SAX2 Reference

SAX2 Visual Basic Common Notices

Visual Basic Wrappers

Microsoft® Visual Basic® wrappers are constructed from C++/COM interfaces by:

  • Replacing the "I" prefix in front of the interface/class name with "IVB".
  • Replacing all string representations from w_char_t*/int to BSTR. For handlers, strings should be passed by reference.
  • Replacing IerrorInfo parameters with BSTRs containing error messages.
  • Replacing HRESULT parameters with long.
  • Making all parameter names follow simplified Hungarian notation for Visual Basic. For example, strName is used in place of pwchName. Prefixes are "srt", "n", "l", and "o".
  • Wherever C++ uses NULL, Visual Basic uses VT_Empty.
  • All interfaces are derived from IDispatch.

Currently, Visual Basic and C++ wrappers are completely disconnected for the user. However, the same coclasses implement both C++ and VB interfaces.

Features

Features handled and recognized by SAXXMLReader are:

  • "exhaustive-errors"
  • "http://xml.org/sax/features/external-general-entities"
  • "http://xml.org/sax/features/external-parameter-entities"
  • "http://xml.org/sax/features/lexical-handler/parameter-entities"
  • "http://xml.org/sax/features/namespaces"
  • "http://xml.org/sax/features/namespace-prefixes"
  • "preserve-system-identifiers"
  • "schema-validation"
  • "server-http-request"

Properties

Properties handled and recognized by SAXXMLReader are:

  • "http://xml.org/sax/properties/lexical-handler"
  • "http://xml.org/sax/properties/declaration-handler"
  • "http://xml.org/sax/properties/dom-node"
  • "http://xml.org/sax/properties/xml-string"
  • "schemas"
  • "schema-declaration-handler"
  • "charset"
  • "xmldecl-encoding"
  • "xmldecl-version"
  • "xmldecl-standalone"

Base interface

All interfaces are derived from IDispatch.