Question

以前有一种方法可以通过FindWindowEx结合SendMessage调用来获取当前位于多功能框中的文本，从而获取Google Chrome中的有效标签网址。最近的（？）更新似乎打破了这种方法，因为Chrome现在似乎正在渲染所有内容。（您可以查看Spy ++，AHK Window Spy或Window Detective）

要获取Firefox和Opera上的当前URL，您可以使用DDE和WWW_GetWindowInfo。这在Chrome上似乎不可能（再也没有？）。

This question有一个答案，其中包含有关其工作方式的更多信息，这是一段代码（正如我所解释的那样，不再有效 - hAddressBox是{{1} }）：

所以我的问题是：是否有新的方法来获取当前关注的标签的网址？（只是标题是不够的）

Answer 1

修改：似乎我的答案中的代码不再适用（虽然使用AutomationElement的想法仍适用于以后的Chrome版本），所以请仔细查看其他不同版本的答案。例如，这是Chrome 54的一个：https://stackoverflow.com/a/40638519/377618

以下代码似乎有效（感谢icemanind的评论）但是资源密集。找到elmUrlBar需要大约350ms ......有点慢。

更不用说我们遇到了同时运行多个chrome进程的问题。

// there are always multiple chrome processes, so we have to loop through all of them to find the
// process with a Window Handle and an automation element of name "Address and search bar"
Process[] procsChrome = Process.GetProcessesByName("chrome");
foreach (Process chrome in procsChrome) {
  // the chrome process must have a window
  if (chrome.MainWindowHandle == IntPtr.Zero) {
    continue;
  }

  // find the automation element
  AutomationElement elm = AutomationElement.FromHandle(chrome.MainWindowHandle);
  AutomationElement elmUrlBar = elm.FindFirst(TreeScope.Descendants,
    new PropertyCondition(AutomationElement.NameProperty, "Address and search bar"));

  // if it can be found, get the value from the URL bar
  if (elmUrlBar != null) {
    AutomationPattern[] patterns = elmUrlBar.GetSupportedPatterns();
    if (patterns.Length > 0) {
      ValuePattern val = (ValuePattern)elmUrlBar.GetCurrentPattern(patterns[0]);
      Console.WriteLine("Chrome URL found: " + val.Current.Value);
    }
  }
}

编辑：我对上面的慢速方法感到不满意，所以我加快了速度（现在是50ms）并添加了一些URL验证，以确保我们获得了正确的URL而不是用户的东西可能是在网上搜索，或者仍在忙着输入网址。这是代码：

// there are always multiple chrome processes, so we have to loop through all of them to find the
// process with a Window Handle and an automation element of name "Address and search bar"
Process[] procsChrome = Process.GetProcessesByName("chrome");
foreach (Process chrome in procsChrome) {
  // the chrome process must have a window
  if (chrome.MainWindowHandle == IntPtr.Zero) {
    continue;
  }

  // find the automation element
  AutomationElement elm = AutomationElement.FromHandle(chrome.MainWindowHandle);

  // manually walk through the tree, searching using TreeScope.Descendants is too slow (even if it's more reliable)
  AutomationElement elmUrlBar = null;
  try {
    // walking path found using inspect.exe (Windows SDK) for Chrome 31.0.1650.63 m (currently the latest stable)
    var elm1 = elm.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, "Google Chrome"));
    if (elm1 == null) { continue; } // not the right chrome.exe
    // here, you can optionally check if Incognito is enabled:
    //bool bIncognito = TreeWalker.RawViewWalker.GetFirstChild(TreeWalker.RawViewWalker.GetFirstChild(elm1)) != null;
    var elm2 = TreeWalker.RawViewWalker.GetLastChild(elm1); // I don't know a Condition for this for finding :(
    var elm3 = elm2.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, ""));
    var elm4 = elm3.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.ToolBar));
    elmUrlBar = elm4.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Custom));
  } catch {
    // Chrome has probably changed something, and above walking needs to be modified. :(
    // put an assertion here or something to make sure you don't miss it
    continue;
  }

  // make sure it's valid
  if (elmUrlBar == null) {
    // it's not..
    continue;
  }

  // elmUrlBar is now the URL bar element. we have to make sure that it's out of keyboard focus if we want to get a valid URL
  if ((bool)elmUrlBar.GetCurrentPropertyValue(AutomationElement.HasKeyboardFocusProperty)) {
    continue;
  }

  // there might not be a valid pattern to use, so we have to make sure we have one
  AutomationPattern[] patterns = elmUrlBar.GetSupportedPatterns();
  if (patterns.Length == 1) {
    string ret = "";
    try {
      ret = ((ValuePattern)elmUrlBar.GetCurrentPattern(patterns[0])).Current.Value;
    } catch { }
    if (ret != "") {
      // must match a domain name (and possibly "https://" in front)
      if (Regex.IsMatch(ret, @"^(https:\/\/)?[a-zA-Z0-9\-\.]+(\.[a-zA-Z]{2,4}).*$")) {
        // prepend http:// to the url, because Chrome hides it if it's not SSL
        if (!ret.StartsWith("http")) {
          ret = "http://" + ret;
        }
        Console.WriteLine("Open Chrome URL found: '" + ret + "'");
      }
    }
    continue;
  }
}

Answer 2

从Chrome 54开始，以下代码对我有用：

public static string GetActiveTabUrl()
{
  Process[] procsChrome = Process.GetProcessesByName("chrome");

  if (procsChrome.Length <= 0)
    return null;

  foreach (Process proc in procsChrome)
  {
    // the chrome process must have a window 
    if (proc.MainWindowHandle == IntPtr.Zero)
      continue;

    // to find the tabs we first need to locate something reliable - the 'New Tab' button 
    AutomationElement root = AutomationElement.FromHandle(proc.MainWindowHandle);
    var SearchBar = root.FindFirst(TreeScope.Descendants, new PropertyCondition(AutomationElement.NameProperty, "Address and search bar"));
    if (SearchBar != null)
      return (string)SearchBar.GetCurrentPropertyValue(ValuePatternIdentifiers.ValueProperty);
  }

  return null;
}

Answer 3

我获得了Chrome 38.0.2125.10的结果以及下一个代码（代码在'尝试＆＃39;里面必须用此替换块）

var elm1 = elm.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, "Google Chrome"));
if (elm1 == null) { continue; }  // not the right chrome.exe
var elm2 = TreeWalker.RawViewWalker.GetLastChild(elm1);
var elm3 = elm2.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.HelpTextProperty, "TopContainerView"));
var elm4 = elm3.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.ToolBar));
var elm5 = elm4.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.HelpTextProperty, "LocationBarView"));
elmUrlBar = elm5.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Edit));

Answer 4

使用Chrome V53及更高版本时，上述所有方法都失败了。

这是什么工作：

Process[] procsChrome = Process.GetProcessesByName("chrome");
foreach (Process chrome in procsChrome)
{
    if (chrome.MainWindowHandle == IntPtr.Zero)
        continue;

    AutomationElement element = AutomationElement.FromHandle(chrome.MainWindowHandle);
    if (element == null)
        return null;
    Condition conditions = new AndCondition(
        new PropertyCondition(AutomationElement.ProcessIdProperty, chrome.Id),
        new PropertyCondition(AutomationElement.IsControlElementProperty, true),
        new PropertyCondition(AutomationElement.IsContentElementProperty, true),
        new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Edit));

    AutomationElement elementx = element.FindFirst(TreeScope.Descendants, conditions);
    return ((ValuePattern)elementx.GetCurrentPattern(ValuePattern.Pattern)).Current.Value as string;
}

在这里找到它：

https://social.msdn.microsoft.com/Forums/vstudio/en-US/93001bf5-440b-4a3a-ad6c-478a4f618e32/how-can-i-get-urls-of-open-pages-from-chrome-and-firefox?forum=csharpgeneral

Answer 5

我采用了Angelo的解决方案并清理了一下......我对LINQ有一个固定：）

这是主要的方法;它使用了几种扩展方法：

public IEnumerable<string> GetTabs()
{
  // there are always multiple chrome processes, so we have to loop through all of them to find the
  // process with a Window Handle and an automation element of name "Address and search bar"
  var processes = Process.GetProcessesByName("chrome");
  var automationElements = from chrome in processes
                           where chrome.MainWindowHandle != IntPtr.Zero
                           select AutomationElement.FromHandle(chrome.MainWindowHandle);

  return from element in automationElements
         select element.GetUrlBar()
         into elmUrlBar
         where elmUrlBar != null
         where !((bool) elmUrlBar.GetCurrentPropertyValue(AutomationElement.HasKeyboardFocusProperty))
         let patterns = elmUrlBar.GetSupportedPatterns()
         where patterns.Length == 1
         select elmUrlBar.TryGetValue(patterns)
         into ret
         where ret != ""
         where Regex.IsMatch(ret, @"^(https:\/\/)?[a-zA-Z0-9\-\.]+(\.[a-zA-Z]{2,4}).*$")
         select ret.StartsWith("http") ? ret : "http://" + ret;
}

请注意，评论具有误导性，因为评论往往是 - 它实际上并不是单个AutomationElement。我把它留在那里是因为Angelo的代码有它。

这是扩展类：

public static class AutomationElementExtensions
{
  public static AutomationElement GetUrlBar(this AutomationElement element)
  {
    try
    {
      return InternalGetUrlBar(element);
    }
    catch
    {
      // Chrome has probably changed something, and above walking needs to be modified. :(
      // put an assertion here or something to make sure you don't miss it
      return null;
    }
  }

  public static string TryGetValue(this AutomationElement urlBar, AutomationPattern[] patterns)
  {
    try
    {
      return ((ValuePattern) urlBar.GetCurrentPattern(patterns[0])).Current.Value;
    }
    catch
    {
      return "";
    }
  }

  //

  private static AutomationElement InternalGetUrlBar(AutomationElement element)
  {
    // walking path found using inspect.exe (Windows SDK) for Chrome 29.0.1547.76 m (currently the latest stable)
    var elm1 = element.FindFirst(TreeScope.Children,
      new PropertyCondition(AutomationElement.NameProperty, "Google Chrome"));
    var elm2 = TreeWalker.RawViewWalker.GetLastChild(elm1); // I don't know a Condition for this for finding :(
    var elm3 = elm2.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, ""));
    var elm4 = elm3.FindFirst(TreeScope.Children,
      new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.ToolBar));
    var result = elm4.FindFirst(TreeScope.Children,
      new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Custom));

    return result;
  }
}

Answer 6

参考Angelo Geels的解决方案，这里是版本35的补丁 - ＆＃34;尝试＆＃34;块必须替换为：

var elm1 = elm.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, "Google Chrome"));
if (elm1 == null) { continue; } // not the right chrome.exe
var elm2 = TreeWalker.RawViewWalker.GetLastChild(elm1); // I don't know a Condition for this for finding
var elm3 = elm2.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, ""));
var elm4 = TreeWalker.RawViewWalker.GetNextSibling(elm3); // I don't know a Condition for this for finding
var elm7 = elm4.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.ToolBar));
elmUrlBar = elm7.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Custom));

我从这里拿走了它： http://techsupt.winbatch.com/webcgi/webbatch.exe?techsupt/nftechsupt.web+WinBatch/dotNet/System_CodeDom+Grab~URL~from~Chrome.txt

Answer 7

对我来说，只有活动的chrome窗口有一个MainWindowHandle。我通过查看所有窗口的镀铬窗口，然后使用这些手柄来解决这个问题。例如：

    public delegate bool Win32Callback(IntPtr hwnd, IntPtr lParam);

    [DllImport("user32.dll")]
    protected static extern bool EnumWindows(Win32Callback enumProc, IntPtr lParam); 

    private static bool EnumWindow(IntPtr handle, IntPtr pointer)
    {
        List<IntPtr> pointers = GCHandle.FromIntPtr(pointer).Target as List<IntPtr>;
        pointers.Add(handle);
        return true;
    }

    private static List<IntPtr> GetAllWindows()
    {
        Win32Callback enumCallback = new Win32Callback(EnumWindow);
        List<IntPtr> pointers = new List<IntPtr>();
        GCHandle listHandle = GCHandle.Alloc(pointers);
        try
        {
            EnumWindows(enumCallback, GCHandle.ToIntPtr(listHandle));
        }
        finally
        {
            if (listHandle.IsAllocated) listHandle.Free();
        }
        return pointers;
    }

然后获取所有镀铬窗口：

    [DllImport("User32", CharSet = CharSet.Auto, SetLastError = true)]
    public static extern int GetWindowText(IntPtr windowHandle, StringBuilder stringBuilder, int nMaxCount);

    [DllImport("user32.dll", EntryPoint = "GetWindowTextLength", SetLastError = true)]
    internal static extern int GetWindowTextLength(IntPtr hwnd);
    private static string GetTitle(IntPtr handle)
    {
        int length = GetWindowTextLength(handle);
        StringBuilder sb = new StringBuilder(length + 1);
        GetWindowText(handle, sb, sb.Capacity);
        return sb.ToString();
    }

最后：

GetAllWindows()
    .Select(GetTitle)
    .Where(x => x.Contains("Google Chrome"))
    .ToList()
    .ForEach(Console.WriteLine);

希望这可以节省其他人一些时间来弄清楚如何实际获取所有镀铬窗口的句柄。

Answer 8

我发现了这篇文章，并能够使用这些方法从C＃中的chrome成功提取URL，谢谢大家！

很遗憾，随着最近的 Chrome 69 更新，AutomationElement树遍历再次中断。

我通过Microsoft找到了这篇文章：Navigate Among UI Automation Elements with TreeWalker

并用它来产生一个简单的函数，该函数使用我们正在寻找的AutomationElement控件类型来搜索"edit"，而不是遍历不断变化的树层次结构< / em>，然后从该AutomationElement中提取网址值。

我写了一个简单的类，将其全部包装起来：Google-Chrome-URL-Check-C-Sharp。

自述文件解释了如何使用它。

总而言之，它可能更加可靠，并希望其中的一些人觉得它有用。

Answer 9

对于版本53.0.2785，它使用了它：

var elm1 = elm.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, "Google Chrome"));
                if (elm1 == null) { continue; } // not the right chrome.exe
                var elm2 = elm1.FindAll(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, ""))[1];
                var elm3 = elm2.FindAll(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, ""))[1];
                var elm4 = elm3.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, "principal"));
                var elm5 = elm4.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.NameProperty, ""));
                elmUrlBar = elm5.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Edit));

使用C＃从Google Chrome获取当前标签的网址

9 个答案: