C/C++ Code (importNode.cpp)

#include <stdio.h>
#import <msxml5.dll>
using namespace MSXML2;

void main()
{
   IXMLDOMDocument3Ptr domFree=NULL;
   IXMLDOMDocument3Ptr domApt =NULL;
   IXMLDOMNodePtr      node   =NULL;
   IXMLDOMNodePtr      clone  =NULL;

   CoInitialize(NULL);

   if (FAILED(domFree.CreateInstance(__uuidof(FreeThreadedDOMDocument50))))
   {
      printf("Can't create domFree\n");
      return ;
   }

   if (FAILED(domApt.CreateInstance(__uuidof(DOMDocument50))))
   {
      printf("Can't create domApt\n");
      return ;
   }

   domApt->async = VARIANT_FALSE;
   if (VARIANT_FALSE == domApt->load("doc1.xml")) 
   {
      printf("Can't load doc1.xml\n");
      return;
   }

   domFree->async = VARIANT_TRUE;
   if (VARIANT_FALSE == domFree->load("doc2.xml"))
   {
      printf("Can't load doc2.xml\n");
      return;
   }

  // Copy a node from domFree to domApt:
  //   Fetch the "/doc" (node) from domFree (doc2.xml).
  //   Clone node for import to domApt.
  //   Append  clone to domApt (doc1.xml).
  // 
   node = domFree->selectSingleNode("/doc");
   if (NULL == node) 
   {
      printf("Can't fetch /doc from domFree\n");
      return;
   }
   clone = domApt->importNode(node, VARIANT_TRUE);
   if (NULL == clone)
   {
      printf("Can't clone /doc from doc2.xml\n");
      return;
   }
   domApt->documentElement->appendChild(clone);
   domApt->documentElement->appendChild(domApt->createTextNode("\n"));
   printf("doc1.xml after importing /doc from doc2.xml:\n");
   printf(domApt->xml);
   printf("\n");
   node.Release();
   node = NULL;
   clone.Release();
   clone = NULL;

  // Clone a node using importNode() and append it to the same DOM:
  //   Fetch the "doc/b" (node) from domApt (doc1.xml).
  //   Clone node using importNode on domApt.
  //   Append clone to domApt (doc1.xml).
  //
   node = domApt->selectSingleNode("/doc/b");
   if (NULL == node) 
   {
      printf("Can't fetch /doc/b from domApt\n");
      return;
   }
   clone = domApt->importNode(node, VARIANT_TRUE);
   if (NULL == clone)
   {
      printf("Can't clone /doc/b from doc1.xml\n");
      return;
   }
   domApt->documentElement->appendChild(domApt->createTextNode("\t"));
   domApt->documentElement->appendChild(clone);
   printf("doc1.xml after importing /doc/b from self:\n");
   printf(domApt->xml);
   printf("\n");
   node.Release();
   node = NULL;
   clone.Release();
   clone = NULL;

  // Clone a node and append it to the dom using cloneNode():
  //   1. Fetch "doc/a" (node) from domApt (doc1.xml).
  //   1. Clone node using cloneNode on domApt.
  //   2. Append clone to domApt (doc1.xml).
  //
   node = domApt->selectSingleNode("/doc/a");
   if (NULL == node) 
   {
      printf("Can't fetch /doc/a from domApt\n");
      return;
   }
   clone = node->cloneNode(VARIANT_TRUE);
   if (NULL == clone)
   {
      printf("Can't clone /doc/a from doc1.xml\n");
      return;
   }
   domApt->documentElement->appendChild(clone);
   printf("doc1.xml after cloning /doc/a from self:\n");
   printf(domApt->xml);
   printf("\n");
   node.Release();
   node = NULL;
   clone.Release();
   clone = NULL;

   domApt->save("out.xml");
   printf("a new document was saved to out.xml in the current working directory.\n");
   
   domApt.Release();
   domFree.Release();
   CoUninitialize();
}

Try It!

1. Start Visual C++.
2. From the File menu, select New. On the Projects tab of the New dialog box that appears, select Win32 Console Application in the left pane. Then type "importNodeProj" in the Project name field. For the project Location field, either accept the default setting or choose another location. Click OK.
3. The Win32 Console Application property page will appear. For the type of Console Application, select An empty project and click Finish. When the New Project Information box displays, click OK.
4. Select FileView on the project browser, and highlight importNodeProj files. From the File menu, select New.
5. On the Files tab of the New dialog box, highlight C++ Source File. Then type "importNode.xml" in the File name text box.
6. Click OK.
7. Copy the first XML data file (doc1.xml), and paste it into the text file you just created.
8. Repeat steps 4-7 for the second XML listing (doc2.xml).

   Note   You can also copy the file into the project's main directory using Windows Explorer (or a command prompt).

9. Repeat steps 4-7 for the C++ file above (importNode.cpp).
10. Build the sample by selecting Build importNodeProj.exe from the Build menu.
11. Execute the sample application by selecting !Execute importNodeProj.exe from the Build menu.
12. Verify that the output is the same as that listed in Output for the importNode Example.