Re: COM interfaces
- From: Sven <info_nospam4711_@xxxxxxxxxxxxxxxxx>
- Date: Mon, 30 May 2005 16:14:28 +0200
Hi Vertuas!
Accessing COM-Server from delphi is not a big issue. There is some documentation provided with delphi itself. Search for s.th. like "Creating a COM-Client". Usually it's all about Importing a Typ Library calling the Create or CreateRemote function of the Co-Class and Using the interface.
However if you want to know more about COM or start writing a COM-Server I would suggest to sneak into a good book. I don't know a book regarding COM specifically for delphi, but there are a lot of books and even web pages(you could possibly search for "Introduction Component Object Model") regarding COM itself. It's err... a little sophisticated topic, this COM-stuff. In the first 6 month you usually see nothing than mist and after that you always have the feeling you look throug a haze. But it's no magic!
IMPORTANT: If you access a COM-Server in your program always remember to make sure the COM-Server is available and registered on the Target System!
To give you short Idea of how to access a COM-Server here are some code snippets. They perform a XSL-Transformation:
"
var
xmlDoc, xslDoc: IXMLDOMDocument2;
s: String;
error: IXMLDOMParseError;
i: integer;
begin
try
xmlDoc := CoDOMDocument30.Create;
xmlDoc.async := False;
xslDoc := CoDOMDocument30.Create;
xslDoc.async := False;
xmlDoc.loadXML(sXMLData);
xslDoc.loadXML(sXSLData);
xmlDoc.validateOnParse := False;
xmlDoc.resolveExternals := False;
s := xmlDoc.TransformNode(xslDoc);
error := xmlDoc.parseError;
Result := error.reason;
"brgds Sven
dvddude schrieb:
Hello all,
I an trying to use some COM interface things from delphi, i have an SDK and everything is accessed through interfaces :o(
Could someone point me in the right direction to a web page that explains how to call COM Servers from delphi please?
Thanks
Vertuas
.
- References:
- COM interfaces
- From: dvddude
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