MSXML - enable xpath query

To enable MSXML for use with XPATH queries you have to set the name spaces and also the language property to XPath like so:-

myDoc := CreateComObject(CLASS_msDOMDocument) AS IXMLDOMDocument2;
myDoc.setProperty('SelectionNamespaces', Format('xmlns:my="%s"', [NSMY]));
myDoc.setProperty('SelectionLanguage','XPath'); // enable advanced query

Delphi: Read XML document from an embedded resource.

If your application wants to work with XML data; sometimes it is useful to shove that data into the executable; so it can start with a 'blank form' for example.

You can pack XML into a resource in Delphi and read it using a TResourceStream like this:-

procedure TForm1.loadInternally(var myDoc: msDOMDocument);

const

NSMY = 'http://schemas/mynamespace/blah/blah';

var

resource: TResourceStream;

xmlString: string;

l: integer;

sstream: TStringStream;

begin

myDoc := CreateComObject(CLASS_msDOMDocument) AS IXMLDOMDocument2;

myDoc.setProperty('SelectionNamespaces', Format('xmlns:my="%s"', [NSMY]));

// get embedded data

resource :=TResourceStream.CreateFromID(HInstance, 500, RT_RCDATA);

sstream :=TStringStream.Create;

resource.SaveToStream( sstream );

xmlString:= sstream.DataString;

// and load..

if not myDoc.loadXML(xmlString) then

showmessage('Internal Document load failed');

// release memory.

resource.Free;

sstream.Free;

end;