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From: Håvard Olerud Eriksen on 16 Mar 2007 10:22
I'm trying to add a processing instruction to an xml document. I've
found a few instructions on the web but when I try to do the same I
get an error message saying:
Error 1 error C2664: 'MSXML2::IXMLDOMNode::insertBefore' : cannot
convert parameter 1 from 'IXMLDOMProcessingInstructionPtr' to
'MSXML2::IXMLDOMNode *'
The code looks like this:

bool Init()
{
pXMLDoc_ = NULL;
HRESULT hr;

hr = pXMLDoc_.CreateInstance("Msxml2.DOMDocument.6.0");
if (FAILED(hr))
{
std::cerr << "Error, can't create DOM" << std::endl;
return false;
}
pXMLDoc_->async = false;

IXMLDOMProcessingInstructionPtr pPI = NULL;
pPI = pXMLDoc_->createProcessingInstruction("xml", "version='1.0'
encoding='UTF-8'");
_variant_t nullVal;
nullVal.vt = VT_NULL;
pXMLDoc_->insertBefore(pPI, nullVal);
return true;
}

What am I missing here? Any help is much appreciated!

Håvard

From: David Lowndes on 16 Mar 2007 10:48
>I'm trying to add a processing instruction to an xml document. I've
>found a few instructions on the web but when I try to do the same I
>get an error message saying:
>Error 1 error C2664: 'MSXML2::IXMLDOMNode::insertBefore' : cannot
>convert parameter 1 from 'IXMLDOMProcessingInstructionPtr' to
>'MSXML2::IXMLDOMNode *'
>The code looks like this:

> IXMLDOMProcessingInstructionPtr pPI = NULL;
> pPI = pXMLDoc_->createProcessingInstruction("xml", "version='1.0'
>encoding='UTF-8'");
> _variant_t nullVal;
> nullVal.vt = VT_NULL;
> pXMLDoc_->insertBefore(pPI, nullVal);

H�vard,

You probably don't want to use insertBefore there since you've only
just got your document. Here's what works for me:

IXMLDOMProcessingInstructionPtr pi =
pDoc->createProcessingInstruction( "xml", "version='1.0'
encoding='UTF-8'" );
pDoc->appendChild( pi );

Dave
From: Alex Blekhman on 16 Mar 2007 11:09
Here's working example that doesn't have any casting
problems:

--------------------------------------------------
#import <msxml6.dll>

int _tmain(int /*argc*/, _TCHAR* /*argv*/[])
{
::CoInitialize(NULL);

MSXML2::IXMLDOMDocument2Ptr ptrXmlDoc(
__uuidof(MSXML2::DOMDocument60));
ptrXmlDoc->async = VARIANT_FALSE;
ptrXmlDoc->loadXML(L"<hello/>");

MSXML2::IXMLDOMProcessingInstructionPtr ptrPI =
ptrXmlDoc->createProcessingInstruction(L"xml",
L"version='1.0' encoding='UTF-8'");

ptrXmlDoc->insertBefore(ptrPI,
ptrXmlDoc->documentElement.GetInterfacePtr());
ptrPI = NULL;

ptrXmlDoc->save(L"Test.xml");
ptrXmlDoc = NULL;

::CoUninitialize();

return 0;
}
--------------------------------------------------

Alex

From: Håvard Olerud Eriksen on 19 Mar 2007 04:20
On Mar 16, 4:09 pm, "Alex Blekhman" <x...(a)oohay.moc> wrote:
> Here's working example that doesn't have any casting
> problems:
>
> --------------------------------------------------
> #import <msxml6.dll>
>
> int _tmain(int /*argc*/, _TCHAR* /*argv*/[])
> {
> ::CoInitialize(NULL);
>
> MSXML2::IXMLDOMDocument2Ptr ptrXmlDoc(
> __uuidof(MSXML2::DOMDocument60));
> ptrXmlDoc->async = VARIANT_FALSE;
> ptrXmlDoc->loadXML(L"<hello/>");
>
> MSXML2::IXMLDOMProcessingInstructionPtr ptrPI =
> ptrXmlDoc->createProcessingInstruction(L"xml",
> L"version='1.0' encoding='UTF-8'");
>
> ptrXmlDoc->insertBefore(ptrPI,
> ptrXmlDoc->documentElement.GetInterfacePtr());
> ptrPI = NULL;
>
> ptrXmlDoc->save(L"Test.xml");
> ptrXmlDoc = NULL;
>
> ::CoUninitialize();
>
> return 0;}
>
> --------------------------------------------------
>
> Alex

Thanks guy for the prompt reply. I went with the last version and it
worked like a charm!

Håvard

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