[DllImport("user32.dll")]

public static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);

[DllImport("User32.dll")]

private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

[DllImport("user32.dll")]

static extern int EnumWindows(EnumWindowsProc hWnd, IntPtr lParam);

[DllImport("user32.dll", CharSet = CharSet.Auto)]

static extern int GetWindowText(IntPtr hWnd, StringBuilder lpText, int nCount);

[DllImport("user32.dll")]

private static extern int SendMessage(IntPtr hwnd, int wMsg, int wParam, StringBuilder lParam);

private const int WM_GETTEXT = 0x00D;

private static string _url;

//定义委托

delegate bool EnumWindowsProc(IntPtr hWnd, IntPtr lParam);

static void Main(string[] args)

{

string url = GetWindowText();

 Console.WriteLine(url);

Console.ReadKey();

}

public static string GetWindowText()

{

IntPtr chrom = IntPtr.Zero;

EnumWindowsProc enwdproc = new EnumWindowsProc(FindChrom);

if (EnumWindows(enwdproc, IntPtr.Zero) >= )

return _url;

else

return null;

}

//回调函数

static bool FindChrom(IntPtr hWnd, IntPtr lParam)

{

var sb = new StringBuilder();

GetWindowText(hWnd, sb, sb.Capacity);

if (sb.ToString() != String.Empty)

{

if (hWnd != IntPtr.Zero)

{

IntPtr tb = FindWindowEx(hWnd, new IntPtr(), "Chrome_OmniboxView", ""); //Chrome_OmniboxView是通过Spy++获得的

StringBuilder strbld = new StringBuilder();

SendMessage(tb, WM_GETTEXT, , strbld);

_url = strbld.ToString();

}

return false;

}

//回调函数有返回值

return true;

}