Read XML-Idoc (Control and Segments)

Hi experts,

I have found the function module IDOC_XML_FROM_FILE, which seems to inbound XML-IDocs.

Does anyobdy know a possilibty (function module, method, ...) which gives me the Control-Structure (EDI_DC40) and segments (EDI_DD40_TT) out o an xml-IDoc file?

So, I would like to give the file-path as import and as export I would like to get the control-structure and segments.

Kind regadrs