winform获取当前Url地址

 1         [DllImport("user32.dll")]
 2         private static extern int FindWindow(string lpClassName, string lpWindowName);
 3 
 4         [DllImport("user32.dll", SetLastError = true)]
 5         private static extern int FindWindowEx(int parentHandle, int childAfter, string className, string windowTitle);
 6 
 7         [DllImport("user32.dll", EntryPoint = "SendMessage")]
 8         private static extern int SendMessage(int hWnd, uint Msg, int wParam, StringBuilder sb);
 9 
10         [DllImport("user32.dll")]
11         private static extern int GetForegroundWindow();
12 
13         private const int WM_GETTEXT = 0x000D;
14 
15         private void button1_Click(object sender, EventArgs e)
16         {
17             int currentPar = FindIEForm();
18          MessageBox.Show( GetIE6URL(currentPar));
19              MessageBox.Show( GetIE8URL(currentPar));
20         }
21         /// <summary>
22         /// 获得IE窗体的句柄
23         /// </summary>
24         /// <returns></returns>
25         public static int FindIEForm()  //查找IE窗体;找到就返回句柄;
26         {
27             if (FindWindow("IEFrame", null) != (int)0)
28             {
29                 return FindWindow("IEFrame", null);
30             }
31             return (int)0;
32         }
33 
34         /// <summary>
35         /// 获得IE6.0的url
36         /// </summary>
37         /// <param name="phwnd"></param>
38         /// <returns></returns>
39         public static string GetIE6URL(int phwnd)    //得到IE地址栏里的信息;
40         {
41             int child = FindWindowEx(phwnd, 0, "WorkerW", null);
42             child = FindWindowEx(child, 0, "ReBarWindow32", null);
43             child = FindWindowEx(child, 0, "ComboBoxEx32", null);
44             child = FindWindowEx(child, 0, "ComboBox", null);
45             child = FindWindowEx(child, 0, "Edit", null);
46             StringBuilder buffer = new StringBuilder(1024);
47             int num = SendMessage(child, WM_GETTEXT, 1024, buffer);   //用一可变字符串变量存储地址栏的信息;
48             string URL = buffer.ToString().Trim('/').ToLower();
49             return URL;
50         }
51 
52         /// <summary>
53         /// 获得IE8.0的url
54         /// </summary>
55         /// <param name="phwnd"></param>
56         /// <returns></returns>
57         public static string GetIE8URL(int phwnd)    //得到IE地址栏里的信息;
58         {
59             int mainHand = FindWindow("IEFrame", null);
60             int child = FindWindowEx(mainHand, 0, "WorkerW", null);
61             child = FindWindowEx(child, 0, "ReBarWindow32", null);
62             child = FindWindowEx(child, 0, "Address Band Root", null);
63             child = FindWindowEx(child, 0, "Edit", null);
64             StringBuilder buffer = new StringBuilder(1024);
65             int num = SendMessage(child, WM_GETTEXT, 1024, buffer);   //用一可变字符串变量存储地址栏的信息;
66             string URL = buffer.ToString().Trim('/').ToLower();
67             return URL;
68         }