Callback EventProcedure InterfaceArgument Type
      Start documentStartDocument()None
      End documentEndDocument() None
      Start elementStartElement( 
      pointer to element name:
      pointer to attributes list)(*) Space pointer to character field 
      (*) Space pointer to character field 
      End element Endocument( 
      pointer to element name) (*) Space pointer to character field 
      Characters (text node) Characters( 
      pointer to element character data:
      pointer to length of character data)(*) Space pointer to character field
      (*) Space pointer to integer (10i)
      length of character data 
      Ignorable WhitespaceIgnorableWhitespace(
      pointer to element whitespace data: 
      pointer to length of whitespace data) (*) Space pointer to character field 

      (*) Space pointer to integer (10i) 
      length of whitespace data 
      Processing InstructionsProcessingInstructions(
      pointer to element target instruction: 
      pointer to instruction data) (*) Space pointer to character field 
      (*) Space pointer to character field