Selenium ChromeDriver embedding

using OpenQA.Selenium.Chrome;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace TestProject
{
    public partial class EmbeddedProgram : Form
    {
        IntPtr EmbeddedWindowHandle;
        public EmbeddedProgram()
        {
            InitializeComponent();

            //----------------------TEST---------------------
            ChromeDriverService service = ChromeDriverService.CreateDefaultService();
            service.HideCommandPromptWindow = true;

            ChromeDriver driver = new ChromeDriver(service);
            Console.WriteLine(driver.CurrentWindowHandle);

            Process chromeDriverProcess = Process.GetProcessById(service.ProcessId);
            //EmbeddedWindowHandle = driver.CurrentWindowHandle;
            //----------------------TEST---------------------

            ProcessStartInfo processInfo = new ProcessStartInfo("notepad.exe");
            Process p = Process.Start(processInfo);
            p.WaitForInputIdle();
            EmbeddedWindowHandle = p.MainWindowHandle;
            SetParent(EmbeddedWindowHandle, panel1.Handle);
            MoveWindow(EmbeddedWindowHandle, 0, 0, panel1.Width, panel1.Height, true);
            SetWindowLong(EmbeddedWindowHandle, GWL_STYLE, WS_VISIBLE);
        }

        private const int GWL_STYLE = -16;
        private const int WS_VISIBLE = 0x10000000;
        private const int WM_CLOSE = 0x10;

        [DllImport("user32.dll")]
        static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);

        [DllImport("user32.dll", EntryPoint = "SetWindowLongA", SetLastError = true)]
        private static extern long SetWindowLong(IntPtr hwnd, int nIndex, int dwNewLong);

        [DllImport("user32.dll", SetLastError = true)]
        private static extern bool MoveWindow(IntPtr hwnd, int x, int y, int cx, int cy, bool repaint);

        [DllImport("user32.dll", EntryPoint = "PostMessageA", SetLastError = true)]
        private static extern bool PostMessage(IntPtr hwnd, uint Msg, int wParam, int lParam);

        private void EmbeddedProgram_Resize(object sender, EventArgs e)
        {
            MoveWindow(EmbeddedWindowHandle, 0, 0, panel1.Width, panel1.Height, true);
        }

        private void EmbeddedProgram_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (EmbeddedWindowHandle != IntPtr.Zero)
            {
                // Post a close message
                PostMessage(EmbeddedWindowHandle, WM_CLOSE, 0, 0);

                // Delay for it to get the message
                Thread.Sleep(1000);

                // Clear internal handle
                EmbeddedWindowHandle = IntPtr.Zero;
            }
        }
    }
}