DOMPerser - Parse a String

[Foglia's Laboratory]

Hi everybody,
I'm new in xercec. I'm trying to build a c++ cgi that get some XML code 
with some parameters. With Xerces I want to parse this XML, but my xml 
is in a string variable, not in a file. I try to use the command 
DOMParser.Parse(my_xml_string) but dosen't work. It iss possible to 
parse string instead of xml files?
Thnaks
Marco