The IDLffXMLDOMCharacterData::ReplaceData procedure method replaces a number of characters, starting at an offset in the node's character data, with a string.
Obj->[IDLffXMLDOMCharacterData::]ReplaceData, Offset, Count, String
A scalar value that indicates where in the character data to begin replacement.
A scalar number of characters in the character data to replace.
A scalar string to be inserted in the character data at the point indicated by Offset.