Fórum TWebBrowser Delphi - Aguardar conclusão da solicitação #558568

TForm1 = class(TForm)
    private
      CurDispatch: IDispatch; 
      FDocLoaded: Boolean;    
    ....


    procedure TForm1.WebBrowser1BeforeNavigate2(ASender: TObject; const pDisp: IDispatch;
      const URL, Flags, TargetFrameName, PostData, Headers: OleVariant;
      var Cancel: WordBool);
    begin
      CurDispatch := nil;
      FDocLoaded := False;
    end;

    procedure TForm1.WebBrowser1DocumentComplete(ASender: TObject; const pDisp: IDispatch;
      const URL: OleVariant);
    begin
      if (pDisp = CurDispatch) then  
      begin
        FDocLoaded := True;
        CurDispatch := nil;
      end;
    end;

    procedure TForm1.WebBrowser1NavigateComplete2(ASender: TObject; const pDisp: IDispatch;
      const URL: OleVariant);
    begin
      if CurDispatch = nil then
        CurDispatch := pDisp;
    end;

WebBrowser1.Navigate('www.devmedia.com.br');
    repeat Application.ProcessMessage until FDocLoaded;