[xml] xmlwriter - include xml declaration <?xml version="1.0"?> in output

["Prashant R" <ramapra gmail com>]

        

I am trying to write this declaration

<?xml version="1.0"?>

but cannot get it to be outputted the file i am writing. 

Am i missing something ? 

        xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0");

xmlTextWriterPtr writer = xmlNewTextWriterTree( doc, NULL, 0 );

xmlTextWriterStartDocument(writer ,  "1.0" , NULL , "yes");

xmlTextWriterStartElement( writer, (const xmlChar *)"Node1" );

         // .. write inner xcontent 

        xmlTextWriterEndElement(writer) ; // node 1 

xmlTextWriterEndDocument(writer);

xmlFreeTextWriter(writer);

SerializeFile(doc);

xmlFreeDoc(doc);