unit WebFrm;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, OleCtrls, SHDocVw, ExtCtrls;

type
  TWebForm = class(TForm)
    ActionPanel: TPanel;
    WebBrowser: TWebBrowser;
    LoginButton: TButton;
    procedure WebBrowserBeforeNavigate2(Sender: TObject;
      const pDisp: IDispatch; var URL, Flags, TargetFrameName, PostData,
      Headers: OleVariant; var Cancel: WordBool);
    procedure WebBrowserDocumentComplete(Sender: TObject;
      const pDisp: IDispatch; var URL: OleVariant);
    procedure LoginButtonClick(Sender: TObject);
  private
    DocumentLoaded: Boolean;
  end;

var
  WebForm: TWebForm;

implementation

{$R *.dfm}

procedure TWebForm.WebBrowserBeforeNavigate2(Sender: TObject;
  const pDisp: IDispatch; var URL, Flags, TargetFrameName, PostData,
  Headers: OleVariant; var Cancel: WordBool);
begin
  if pDisp = WebBrowser.DefaultInterface then
    DocumentLoaded := false;
end;

procedure TWebForm.WebBrowserDocumentComplete(Sender: TObject;
  const pDisp: IDispatch; var URL: OleVariant);
begin
  if pDisp = WebBrowser.DefaultInterface then
    DocumentLoaded := true;
end;

procedure TWebForm.LoginButtonClick(Sender: TObject);
begin
  with WebBrowser do
  begin
    OnDocumentComplete := WebBrowserDocumentComplete;
    Navigate('http://www.hotmail.com');
  end;

  repeat
    Application.ProcessMessages;
  until DocumentLoaded;

  with WebBrowser do
  begin
    OnDocumentComplete := nil;
    OleObject.document.forms.item(0).elements.item('login').value:='peter@nimmerland.de';
    OleObject.document.forms.item(0).elements.item('passwd').value:='pan';
    OleObject.document.forms.item(0).submit;
  end;
end;

end.