打开IE窗口后，在地址栏输入或者通过链接地址，如何通过监控获取到IE发送的地址？比如:在IE窗口的地址栏中输入：http://www.sina.com.cn 或者通过链接到 http://www.sina.com.cn ，监控程序里立即获取到 http://www.sina.com.cn 这个地址而做出相应的动作，请教，该如何来做？最好能给个实例！谢谢！
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具体代码如下：
using System;
using System.Diagnostics ;
using System.Runtime.InteropServices;
using System.Collections;
using System.Net .Sockets ;
namespace fupip
{
public class geturl
{
public geturl()
{
}
[DllImport("user32.dll")]
public static extern int GetClassName(int hwnd, byte[] lpClassName,Int32[] nMaxCount);
[DllImport("user32.dll")]
public static extern int GetWindow(int hwnd,int wCmd);
[DllImport("user32.dll")]
public static extern int SendMessage(int hwnd,int wMsg,int wParam, byte[] lParam);
public const int GW_CHILD = 5;
public const int GW_HWNDNEXT = 2;
public const int WM_GETTEXT =13;
public const int WM_GETTEXTLENGTH = 14;
public static string[] GetIEURL(string args)
{
string[] urls;
Process[] ps =Process.GetProcessesByName(args);
urls=new string[ps.Length];
for(int i=0;i<ps.Length;i++)
{
int hwndIE=(int)ps[i].MainWindowHandle;
int hwndEdit=getkid(hwndIE);
urls[i]= gettext(hwndEdit);
}
return urls;
}
static int getkid(int hwnd)
{
byte[] str=new byte[100];
Int32[] len=new Int32[1];
int hwndkid=0;
string classname;
int handle=0;
len[0]=100;
ArrayList al=new ArrayList();
GetClassName(hwnd,str,len);
classname=System.Text.Encoding.ASCII.GetString(str);
if(classname.Substring(0,4)=="Edit")
{
handle= hwnd;
}
hwndkid=GetWindow(hwnd,GW_CHILD);
while(hwndkid!=0)
{
al.Add(hwndkid);
hwndkid=GetWindow(hwndkid,GW_HWNDNEXT);
}
foreach(int kid in al)
{
int i=getkid(kid);
if(i!=0)
handle=i;
}
return handle;
}
static string gettext(int hwnd)
{
int txtlen;
byte[] txt;
string text;
txtlen = SendMessage(hwnd, WM_GETTEXTLENGTH, 0, new byte[]{0});
if(txtlen==0)
return "";
txt=new byte[txtlen+1];
txtlen = SendMessage(hwnd, WM_GETTEXT, txtlen+1, txt);
text=System.Text.Encoding.Default.GetString(txt);
return text;
}
}
}