Работа с XML файлами

// MSXMLParser.cpp: определяет точку входа для консольного приложения.
//
 
#include "stdafx.h"
#include <atlbase.h>
//#include <msxml.h>
//#include <MsXml2.h>
#include <iostream>
 
void main()
{
    // Start COM
    CoInitialize(NULL);
 
    // Open the file...note this simplistic executable
    // assumes the file is named "xmldata.xml" and is 
    // in the same directory as the executable.  It
    // further assumes the file looks like this:
    //
    // <?xml version="1.0"?>
    // <xmldata>
    //    <xmlnode />
    //    <xmltext>Hello, World!</ xmltext>
    // </xmldata>
    //
    // The executable will find the node "xmlnode"
    // and insert a new node "xmlchildnode" (with the
    // attribute 'xml="fun"') if everything
    // works as expected. It then finds the node
    // "xmltext" and retrieves the text contained
    // within the node and displays that. Finally, it
    // saves the XML document into a new file named
    // "updatedxml.xml".
    try {
        // Create an instance of the parser
        CComPtr<IXMLDOMDocument> spXMLDOM;
        HRESULT hr = spXMLDOM.CoCreateInstance(__uuidof(DOMDocument));
        if ( FAILED(hr) ) throw "Unable to create XML parser object";
        if ( spXMLDOM.p == NULL ) throw "Unable to create XML parser object";
 
        // Load the XML document file...
        VARIANT_BOOL bSuccess = false;
    hr = spXMLDOM->load(CComVariant(L"xmldata.xml"),&bSuccess);
    //hr = spXMLDOM->loadXML(L"xmldata.xml", &bSuccess);
 
        if ( FAILED(hr) ) throw "Unable to load XML document into the parser";
        if ( !bSuccess ) throw "Unable to load XML document into the parser";
 
        // Check for <xmldata>
        //              <xmlnode>...
        //
        // Construct search string
        //  "xmldata/xmlnode"
        CComBSTR bstrSS(L"xmldata/xmlnode");
        CComPtr<IXMLDOMNode> spXMLNode;
        hr = spXMLDOM->selectSingleNode(bstrSS,&spXMLNode);
        if ( FAILED(hr) ) throw "Unable to locate 'xmlnode' XML node";
        if ( spXMLNode.p == NULL ) throw "Unable to locate 'xmlnode' XML node";
 
        // The COM object "spXMLNode" now contains the XML
        // node <xmlnode>, so we create a child node at
        // this point...  The DOM creates the node itself,
        // then we place it using the XML node we located as
        // the parent.
        CComPtr<IXMLDOMNode> spXMLChildNode;
        hr = spXMLDOM->createNode(CComVariant(NODE_ELEMENT),CComBSTR("xmlchildnode"),NULL,&spXMLChildNode);
        if ( FAILED(hr) ) throw "Unable to create 'xmlchildnode' XML node";
        if ( spXMLChildNode.p == NULL ) throw "Unable to create 'xmlchildnode' XML node";
 
        // Place the node...if all goes well, the two nodal
        // parameters provided to appendChild will be the 
        // same node. If there is a problem, the "inserted"
        // node's pointer will be NULL.
        CComPtr<IXMLDOMNode> spInsertedNode;
        hr = spXMLNode->appendChild(spXMLChildNode,&spInsertedNode);
        if ( FAILED(hr) ) throw "Unable to move 'xmlchildnode' XML node";
        if ( spInsertedNode.p == NULL ) throw "Unable to move 'xmlchildnode' XML node";
 
        // Add the attribute. Note we do this through the IXMLDOMElement
        // interface, so we need to do the QI().
        CComQIPtr<IXMLDOMElement> spXMLChildElement;
        spXMLChildElement = spInsertedNode;
        if ( spXMLChildElement.p == NULL ) throw "Unable to query for 'xmlchildnode' XML element interface";
 
        hr = spXMLChildElement->setAttribute(CComBSTR(L"xml"),CComVariant(L"fun"));
        if ( FAILED(hr) ) throw "Unable to insert new attribute";
 
        // Check for <xmldata>
        //              <xmltext>...
        //
        // Construct search string
        //  "xmldata/xmltext"
        spXMLNode = NULL; // release previous node...
        bstrSS = L"xmldata/xmltext";
        hr = spXMLDOM->selectSingleNode(bstrSS,&spXMLNode);
        if ( FAILED(hr) ) throw "Unable to locate 'xmltext' XML node";
        if ( spXMLNode.p == NULL ) throw "Unable to locate 'xmltext' XML node";
 
        // Pull the enclosed text and display
        CComVariant varValue(VT_EMPTY);
        hr = spXMLNode->get_nodeTypedValue(&varValue);
        if ( FAILED(hr) ) throw "Unable to retrieve 'xmltext' text";
 
        if ( varValue.vt == VT_BSTR ) {
            // Display the results...since we're not using the
            // wide version of the STL, we need to convert the
            // BSTR to ANSI text for display...
            USES_CONVERSION;
            LPTSTR lpstrMsg = W2T(varValue.bstrVal);
            std::cout << lpstrMsg << std::endl;
        } // if
        else {
            // Some error
            throw "Unable to retrieve 'xmltext' text";
        } // else
 
        // If we got this far, we've inserted the new node, so
        // save the resulting XML document...
        hr = spXMLDOM->save(CComVariant("updatedxml.xml"));
        if ( FAILED(hr) ) throw "Unable to save updated XML document";
 
        // Write a note to the screen...
        std::cout << "Processing complete..."  << std::endl << std::endl;
    } // try
    catch(char* lpstrErr) {
        // Some error...
        std::cout << lpstrErr << std::endl << std::endl;
    } // catch
    catch(...) {
        // Unknown error...
        std::cout << "Unknown error..." << std::endl << std::endl;
    } // catch
 
    // Stop COM
    CoUninitialize();
  system("pause");
}

#include "stdafx.h"
 
#include <stdio.h> //стандартный консольный проект + строки ниже
#include <msxml6.h>
#include <MsXml2DId.h>
#include <atlbase.h>
#include <iostream>