Оформил: DeeCo
Автор: http://www.swissdelphicenter.ch

{ 
  This example shows how to automatically fill in a search string 
  in the "Search Tip" page and click the search button. 
}

 uses
   MSHTML_TLB;

 // first navigate to tipspage 

procedure TForm1.Button1Click(Sender: TObject);
 begin
   Webbrowser1.Navigate('http://www.swissdelphicenter.ch/en/tipsuchen.php');
 end;

 // Try to access IE instance and fill out the search field with 
// a text and click the search button 

procedure TForm1.Button3Click(Sender: TObject);
 var
   hIE: HWND;
   ShellWindow: IShellWindows;
   WB: IWebbrowser2;
   spDisp: IDispatch;
   IDoc1: IHTMLDocument2;
   Document: Variant;
   k, m: Integer;
   ovElements: OleVariant;
   i: Integer;
 begin
   ShellWindow := CoShellWindows.Create;
   // get the running instance of Internet Explorer 
  for k := 0 to ShellWindow.Count do
   begin
     spDisp := ShellWindow.Item(k);
     if spDisp = nil then Continue;
     // QueryInterface determines if an interface can be used with an object 
    spDisp.QueryInterface(iWebBrowser2, WB);

     if WB <> nil then
     begin
       WB.Document.QueryInterface(IHTMLDocument2, iDoc1);
       if iDoc1 <> nil then
       begin
         WB := ShellWindow.Item(k) as IWebbrowser2;
         begin
           Document := WB.Document;

           // count forms on document and iterate through its forms 
          for m := 0 to Document.forms.Length - 1 do
           begin
             ovElements := Document.forms.Item(m).elements;
             // iterate through elements 
            for i := 0 to ovElements.Length - 1 do
             begin
               // when input fieldname is found, try to fill out 
              try
                 if (CompareText(ovElements.item(i).tagName, 'INPUT') = 0) and
                   (CompareText(ovElements.item(i).type, 'text') = 0) then
                 begin
                   ovElements.item(i).Value := 'FindWindow';
                 end;
               except
               end;
               // when Submit button is found, try to click 
              try
                 if (CompareText(ovElements.item(i).tagName, 'INPUT') = 0) and
                   (CompareText(ovElements.item(i).type, 'SUBMIT') = 0) and
                   (ovElements.item(i).Value = 'Search') then  // Suchen fьr German 
                begin
                   ovElements.item(i).Click;
                 end;
               except
               end;
             end;
           end;
         end;
       end;
     end;
   end;
 end;