Re: IXMLDOMSchemaCollectionPtr->add() crashed on me

[Eddie Robertsson <eddie@allette.com.au>]

Hi Izabella,

I haven't worked with the C, C++ version of MSXML4 but from what I can understand the latest version (July) has lots
of bugs. You might want to have a look at the newgroup for MSXML and also post your problems there.          See
microsoft.public.xml.msxml-webrelease

Hope you can find some help there
Cheers,
/Eddie

Izabella Ford wrote:

> I tried to use DOM to do the XML validation with XSD and I used IXMLDOMSchemaCollection according
> to the MSXML4.0 reference.
>
> I followed the example closely, and I just pick the W3C XML Schema to put into
> IXMLDOMSchemaCollectionPtr->add(), but add() always crashed on me. In fact, I tried with some of
> my own XSDs, and it crashed right at add() too.
>
> When using the debugger, I could see that the raw_add() was returning me a huge -ve value for hr,
> seems like some sort of memory wasn't allocated or something.
>
> I'm listing part of my source code below, it must be something that I missed. Please help.
>
> Thanks!
>
> IXMLDOMDocument2Ptr pIXMLDOMDocument2Ptr;
> hr = CoCreateInstance(CLSID_DOMBuilderDocument, NULL, CLSCTX_INPROC_SERVER,
> IID_IXMLDOMBuilderDocument, (void **) &pIXMLDOMDocument2Ptr);
> if (NULL == pIXMLDOMDocument2Ptr)
> {
> return(false);
> }
>
> IXMLDOMSchemaCollectionPtr pIXMLDOMSchemaCollection=NULL;
> VARIANT varValue;
>
> hr=pixmldomdocument2ptr->put_async(variant_false);
> if(SUCCEEDED(hr))
> {
> hr=CoCreateInstance(CLSID_XMLSchemaCache, NULL, CLSCTX_SERVER,
> IID_IXMLDOMSchemaCollection,
> (lpvoid*)(&pixmldomschemacollection));
> SUCCEEDED(hr) ? 0 : throw hr;
>
> if (pIXMLDOMSchemaCollection)
> {
> // -------------
> // CRASHING SPOT
> // -------------
> hr = pixmldomschemacollection->add(_t("http://www.w3.org/2001/xmlschema"),
> _variant_t(_T("XMLSchema.xsd")));
>
> if (hr)
> {
> varValue.vt = VT_DISPATCH;
> varValue.pdispVal = pIXMLDOMSchemaCollection;
> hr=pixmldomdocument2ptr->putref_schemas(varvalue);
> }
> }
> }
>
> =====
> Izabella Ford
> izabellaford@yahoo.com
>
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