Get Web Address when using an ActiveX Plugin

I have create a ActiveX Plugin for Internet Explorer, that will display Tiff files.

What I need is to extract the web address (e.g. "www.testsite.co.uk/testapps/") from Internet Explorer.

The idea is as follows:
A user browses my site and clicks on a link that will display a tiff image, as the ActiveX is loading up, the ActiveX extract the web address of the current HTML page.

Can anyone help please.
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StayGreedyAsked:
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mocartsCommented:
Hi
I did a little research and successfull test with ActiveForm embeded in html:

uses mshtml...;
...
procedure TActiveFormX.Button1Click(Sender: TObject);
var
  id: IHTMLDocument2;
  ic: IOleContainer;
  iow: IOleWindow;
begin
  if (ActiveFormControl.ClientSite.GetContainer(ic) = S_OK) and
     (ic.QueryInterface(IOleWindow, iow) = S_OK) and
      (iow.QueryInterface(IHTMLDocument2, id) = S_OK) then
        edit1.Text := id.Get_url
end;

wbr, mo.

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mocartsCommented:
also look at this PAQ http://www.experts-exchange.com/Programming/Programming_Languages/Delphi/Q_20578481.html
you can use PARAM parameter to retrieve URL - just write your OBJECT tag by using JavaScript dynamically on client side and write your url parameter as current url (Document.location or smth)

wbr, mo.
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