Creates a new Element node with the given tag name.
Creates a new Element node with the given tag name. The new Element node has a nodeName of tagName and the localName, prefix, and namespaceURI set to NULL. To create an Element with a namespace, see ixmlDocument_createElementNS.The ixmlDocument_createElementEx API differs from the ixmlDocument_createElement API in that it returns an error code describing the reason for failure rather than just NULL.