Specifies the event handler for the ontransformnode event.
oXMLDOMDocument.ontransformnode = funcMyEventHandler
HRESULT put_ontransformnode( VARIANT ontransformnodeSink);
A transformation involves two trees: the XML source and the style sheet that is applied to it. The ontransformnode event fires before each node in the style sheet is applied to each node in the XML source.
The ontransformnode property provides a way for developers to specify their own event handler that overrides the default handler.
IXMLDOMDocument Interface | transformNode Method