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Asked: 2026-05-10T19:34:10+00:00

I’m writing out XML files using the MSXML parser, with a wrapper I downloaded

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I’m writing out XML files using the MSXML parser, with a wrapper I downloaded from here: http://www.codeproject.com/KB/XML/JW_CXml.aspx. Works great except that when I create a new document from code (so not load from file and modify), the result is all in one big line. I’d like elements to be indented nicely so that I can read it easily in a text editor.

Googling shows many people with the same question – asked around 2001 or so. Replies usually say ‘apply an XSL transformation’ or ‘add your own whitespace nodes’. Especially the last one makes me go %( so I’m hoping that in 2008 there’s an easier way to pretty MSXML output. So my question; is there, and how do I use it?

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1 Answer

  1. Try this, I found this years ago on the web.

    #include <msxml2.h>  bool FormatDOMDocument (IXMLDOMDocument *pDoc, IStream *pStream) {      // Create the writer      CComPtr <IMXWriter> pMXWriter;     if (FAILED (pMXWriter.CoCreateInstance(__uuidof (MXXMLWriter), NULL, CLSCTX_ALL)))     {         return false;     }     CComPtr <ISAXContentHandler> pISAXContentHandler;     if (FAILED (pMXWriter.QueryInterface(&pISAXContentHandler)))     {         return false;     }     CComPtr <ISAXErrorHandler> pISAXErrorHandler;     if (FAILED (pMXWriter.QueryInterface (&pISAXErrorHandler)))     {         return false;     }     CComPtr <ISAXDTDHandler> pISAXDTDHandler;     if (FAILED (pMXWriter.QueryInterface (&pISAXDTDHandler)))     {         return false;     }      if (FAILED (pMXWriter ->put_omitXMLDeclaration (VARIANT_FALSE)) ||         FAILED (pMXWriter ->put_standalone (VARIANT_TRUE)) ||         FAILED (pMXWriter ->put_indent (VARIANT_TRUE)) ||         FAILED (pMXWriter ->put_encoding (L'UTF-8')))     {         return false;     }      // Create the SAX reader      CComPtr <ISAXXMLReader> pSAXReader;     if (FAILED (pSAXReader.CoCreateInstance (__uuidof (SAXXMLReader), NULL, CLSCTX_ALL)))     {         return false;     }      if (FAILED (pSAXReader ->putContentHandler (pISAXContentHandler)) ||         FAILED (pSAXReader ->putDTDHandler (pISAXDTDHandler)) ||         FAILED (pSAXReader ->putErrorHandler (pISAXErrorHandler)) ||         FAILED (pSAXReader ->putProperty (         L'http://xml.org/sax/properties/lexical-handler', CComVariant (pMXWriter))) ||         FAILED (pSAXReader ->putProperty (         L'http://xml.org/sax/properties/declaration-handler', CComVariant (pMXWriter))))     {         return false;     }      // Perform the write      return         SUCCEEDED (pMXWriter ->put_output (CComVariant (pStream))) &&        SUCCEEDED (pSAXReader ->parse (CComVariant (pDoc))); }
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