C# 通过SendMessage获取浏览器地址栏的地址

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace ConsoleApplication4
{
    class Program
    {
        [DllImport("user32.dll")]
        static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
        [DllImport("user32.dll")]
        static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
        [DllImport("user32.dll")]
        static extern int SendMessage(IntPtr hWnd, uint Msg, int wParam, StringBuilder lParam);

        const int WM_GETTEXT = 0x000D; //获得文本消息的16进制表示

        static void Main(string[] args)
        {

            //chrome.exe IEXPLORE.EXE

            System.Diagnostics.Process.Start("IEXPLORE.EXE", "http://127.0.0.1:7001/console/login/LoginForm.jsp");

            System.Threading.Thread.Sleep(500);

            //获得IE窗口句柄
            IntPtr hWnd = FindWindow("IEFrame", null);

            System.Console.WriteLine("hWnd:" + hWnd);

            IntPtr child = FindWindowEx(hWnd, IntPtr.Zero, "WorkerW", null);
            child = FindWindowEx(child, IntPtr.Zero, "ReBarWindow32", null);
            child = FindWindowEx(child, IntPtr.Zero, "Address Band Root", null);
            child = FindWindowEx(child, IntPtr.Zero, "Edit", null); //通过SPY++获得地址栏的层次结构，然后一层一层获得

            if (child != null)
            {
                StringBuilder buffer = new StringBuilder(1024);
                int num = SendMessage(child, WM_GETTEXT, 1024, buffer);

                System.Console.WriteLine("num:" + num);

                string strUrl = buffer.ToString();

                System.Console.WriteLine("URL:" + strUrl);
            }

            
            Console.ReadLine();
        }

        
    }
}