即：

Dim browser As SHDocVw.InternetExplorer Dim myLocalLink As String Dim myDoc As mshtml.IHTMLDocument2 Dim shellWindows As SHDocVw.ShellWindows = New SHDocVw.ShellWindows() Dim filename As String For Each ie As SHDocVw.InternetExplorer In shellWindows filename = System.IO.Path.GetFileNameWithoutExtension(ie.FullName).ToLower() If filename = "iexplore" Then browser = ie myDoc = browser.Document myLocalLink = myDoc.url MessageBox.Show(myLocalLink) End If Next 

C＃：

  SHDocVw.InternetExplorer browser; string myLocalLink; mshtml.IHTMLDocument2 myDoc; SHDocVw.ShellWindows shellWindows = new SHDocVw.ShellWindows(); string filename; foreach (SHDocVw.InternetExplorer ie in shellWindows) { filename = System.IO.Path.GetFileNameWithoutExtension(ie.FullName).ToLower(); if ((filename == "iexplore")) { browser = ie; myDoc = browser.Document; myLocalLink = myDoc.url; MessageBox.Show(myLocalLink); } 

你需要：

 microsoft.mshtml 

和

 shdocvw.dll 

FireFox c＃：

 using NDde.Client; 

  DdeClient dde = new DdeClient("Firefox", "WWW_GetWindowInfo"); dde.Connect(); string url = dde.Request("URL", int.MaxValue); dde.Disconnect(); MessageBox.Show(url); 

下载NDde.2.01.0563（NDde.dll）

我也对Chrome做过：

Vb.net：

共享function：

  _ Private Shared Function FindWindow( _ ByVal lpClassName As String, _ ByVal lpWindowName As String) As IntPtr End Function  _ Private Shared Function FindWindowEx(ByVal parentHandle As IntPtr, _ ByVal childAfter As IntPtr, _ ByVal lclassName As String, _ ByVal windowTitle As String) As IntPtr End Function  _ Private Shared Function SendMessage(ByVal hWnd As IntPtr, ByVal Msg As UInteger, ByVal wParam As IntPtr, ByVal lParam As IntPtr) As IntPtr End Function 

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  Dim h As IntPtr For Each p As Process In Process.GetProcessesByName("chrome") h = FindWindow("Chrome_WidgetWin_1", p.MainWindowTitle) Exit For Next Dim urlH As IntPtr urlH = FindWindowEx(h, 0, "Chrome_OmniboxView", Nothing) Dim urlHH As IntPtr = Marshal.AllocHGlobal(100) Dim NumText As Integer = SendMessage(urlH, &HD, 50, urlHH) Dim url As String = Marshal.PtrToStringUni(urlHH) MsgBox(url)