System.Diagnostics.Process.Refresh C# (CSharp) Method

        public void Refresh() { }
        public bool Start() { throw null; }

        private void startbtn_Click(object sender, RoutedEventArgs e)
        {
            ProcessStartInfo psi = new ProcessStartInfo(@"C:\q\w32\q.exe");
            psi.WindowStyle = ProcessWindowStyle.Normal;
            _process = Process.Start(psi);

            while (hWndDocked == IntPtr.Zero)
            {
                Thread.Sleep(100);
                //_process.WaitForInputIdle(1000); //wait for the window to be ready for input;
                _process.Refresh();              //update process info
                if (_process.HasExited)
                {
                    return; //abort if the process finished before we got a handle.
                }
                hWndDocked = _process.MainWindowHandle;  //cache the window handle
            }

            //SetParent(_process.MainWindowHandle, helper.Handle);
            SetParent(_process.MainWindowHandle, _panel.Handle);

            // resize embedded application & refresh
            SizeChanged += window_SizeChanged;
            ResizeEmbeddedApp();
        }