Sample SaxContentHandlerImpl Code

Article
08/28/2006

The following code examples illustrate how to write a customized XML parser for CE MSXML. For more information on including these files while creating a SAX2 application, see Tutorial: JumpStart for Creating a SAX2 Application with C++

Sample SaxContentHandlerImpl.h

// SAXContentHandlerImpl.h: interface for the SAXContentHandlerImpl class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_SAXCONTENTHANDLERIMPL_H__517D91C0_0BCF_474D_A77C_10EE27231233__INCLUDED_)
#define AFX_SAXCONTENTHANDLERIMPL_H__517D91C0_0BCF_474D_A77C_10EE27231233__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

class SAXContentHandlerImpl : public ISAXContentHandler  
{
public:
    SAXContentHandlerImpl();
    virtual ~SAXContentHandlerImpl();

        // This must be correctly implemented, if your handler must be a COM Object (in this example it does not)
        long __stdcall QueryInterface(const struct _GUID &,void ** );
        unsigned long __stdcall AddRef(void);
        unsigned long __stdcall Release(void);

        virtual HRESULT STDMETHODCALLTYPE putDocumentLocator( 
            /* [in] */ ISAXLocator __RPC_FAR *pLocator);
        
        virtual HRESULT STDMETHODCALLTYPE startDocument( void);
        
        virtual HRESULT STDMETHODCALLTYPE endDocument( void);
        
        virtual HRESULT STDMETHODCALLTYPE startPrefixMapping( 
            /* [in] */ wchar_t __RPC_FAR *pwchPrefix,
            /* [in] */ int cchPrefix,
            /* [in] */ wchar_t __RPC_FAR *pwchUri,
            /* [in] */ int cchUri);
        
        virtual HRESULT STDMETHODCALLTYPE endPrefixMapping( 
            /* [in] */ wchar_t __RPC_FAR *pwchPrefix,
            /* [in] */ int cchPrefix);
        
        virtual HRESULT STDMETHODCALLTYPE startElement( 
            /* [in] */ wchar_t __RPC_FAR *pwchNamespaceUri,
            /* [in] */ int cchNamespaceUri,
            /* [in] */ wchar_t __RPC_FAR *pwchLocalName,
            /* [in] */ int cchLocalName,
            /* [in] */ wchar_t __RPC_FAR *pwchRawName,
            /* [in] */ int cchRawName,
            /* [in] */ ISAXAttributes __RPC_FAR *pAttributes);
        
        virtual HRESULT STDMETHODCALLTYPE endElement( 
            /* [in] */ wchar_t __RPC_FAR *pwchNamespaceUri,
            /* [in] */ int cchNamespaceUri,
            /* [in] */ wchar_t __RPC_FAR *pwchLocalName,
            /* [in] */ int cchLocalName,
            /* [in] */ wchar_t __RPC_FAR *pwchRawName,
            /* [in] */ int cchRawName);
        
        virtual HRESULT STDMETHODCALLTYPE characters( 
            /* [in] */ wchar_t __RPC_FAR *pwchChars,
            /* [in] */ int cchChars);
        
        virtual HRESULT STDMETHODCALLTYPE ignorableWhitespace( 
            /* [in] */ wchar_t __RPC_FAR *pwchChars,
            /* [in] */ int cchChars);
        
        virtual HRESULT STDMETHODCALLTYPE processingInstruction( 
            /* [in] */ wchar_t __RPC_FAR *pwchTarget,
            /* [in] */ int cchTarget,
            /* [in] */ wchar_t __RPC_FAR *pwchData,
            /* [in] */ int cchData);
        
        virtual HRESULT STDMETHODCALLTYPE skippedEntity( 
            /* [in] */ wchar_t __RPC_FAR *pwchName,
            /* [in] */ int cchName);

};

#endif // !defined(AFX_SAXCONTENTHANDLERIMPL_H__517D91C0_0BCF_474D_A77C_10EE27231233__INCLUDED_)

Sample SaxContentHandlerImpl.cpp

// SAXContentHandlerImpl.cpp: implementation of the SAXContentHandlerImpl class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "SAXContentHandlerImpl.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

SAXContentHandlerImpl::SAXContentHandlerImpl()
{
}
SAXContentHandlerImpl::~SAXContentHandlerImpl()
{
}
HRESULT STDMETHODCALLTYPE SAXContentHandlerImpl::putDocumentLocator( 
            /* [in] */ ISAXLocator __RPC_FAR *pLocator
            )
{
    return S_OK;
}
        
HRESULT STDMETHODCALLTYPE SAXContentHandlerImpl::startDocument()
{
    return S_OK;
}
        
HRESULT STDMETHODCALLTYPE SAXContentHandlerImpl::endDocument( void)
{
    return S_OK;
}
        
HRESULT STDMETHODCALLTYPE SAXContentHandlerImpl::startPrefixMapping( 
            /* [in] */ wchar_t __RPC_FAR *pwchPrefix,
            /* [in] */ int cchPrefix,
            /* [in] */ wchar_t __RPC_FAR *pwchUri,
            /* [in] */ int cchUri)
{
    return S_OK;
}
        
HRESULT STDMETHODCALLTYPE SAXContentHandlerImpl::endPrefixMapping( 
            /* [in] */ wchar_t __RPC_FAR *pwchPrefix,
            /* [in] */ int cchPrefix)
{
    return S_OK;
}
        
HRESULT STDMETHODCALLTYPE SAXContentHandlerImpl::startElement( 
            /* [in] */ wchar_t __RPC_FAR *pwchNamespaceUri,
            /* [in] */ int cchNamespaceUri,
            /* [in] */ wchar_t __RPC_FAR *pwchLocalName,
            /* [in] */ int cchLocalName,
            /* [in] */ wchar_t __RPC_FAR *pwchRawName,
            /* [in] */ int cchRawName,
            /* [in] */ ISAXAttributes __RPC_FAR *pAttributes)
{
    return S_OK;
}
       
HRESULT STDMETHODCALLTYPE SAXContentHandlerImpl::endElement( 
            /* [in] */ wchar_t __RPC_FAR *pwchNamespaceUri,
            /* [in] */ int cchNamespaceUri,
            /* [in] */ wchar_t __RPC_FAR *pwchLocalName,
            /* [in] */ int cchLocalName,
            /* [in] */ wchar_t __RPC_FAR *pwchRawName,
            /* [in] */ int cchRawName)
{
    return S_OK;
}
        
HRESULT STDMETHODCALLTYPE SAXContentHandlerImpl::characters( 
            /* [in] */ wchar_t __RPC_FAR *pwchChars,
            /* [in] */ int cchChars)
{
    return S_OK;
}

HRESULT STDMETHODCALLTYPE SAXContentHandlerImpl::ignorableWhitespace( 
            /* [in] */ wchar_t __RPC_FAR *pwchChars,
            /* [in] */ int cchChars)
{
    return S_OK;
}

HRESULT STDMETHODCALLTYPE SAXContentHandlerImpl::processingInstruction( 
            /* [in] */ wchar_t __RPC_FAR *pwchTarget,
            /* [in] */ int cchTarget,
            /* [in] */ wchar_t __RPC_FAR *pwchData,
            /* [in] */ int cchData)
{
    return S_OK;
}
        
HRESULT STDMETHODCALLTYPE SAXContentHandlerImpl::skippedEntity( 
            /* [in] */ wchar_t __RPC_FAR *pwchVal,
            /* [in] */ int cchVal)
{
    return S_OK;
}

long __stdcall SAXContentHandlerImpl::QueryInterface(const struct _GUID &riid,void ** ppvObject)
{
    // hack-hack-hack!
    return 0;
}

unsigned long __stdcall SAXContentHandlerImpl::AddRef()
{
    // hack-hack-hack!
    return 0;
}

unsigned long __stdcall SAXContentHandlerImpl::Release()
{
    // hack-hack-hack!
    return 0;
}

Sample SaxContentHandlerImpl Code

Sample SaxContentHandlerImpl.h

Sample SaxContentHandlerImpl.cpp

See Also

Additional resources