过去,有一种方法可以FindWindowEx结合使用SendMessage调用来获取多功能框中当前显示的文字,从而从Google Chrome浏览器中获取活动标签的网址。最近的(?)更新似乎已破坏了此方法,因为Chrome似乎现在正在呈现所有内容。(您可以使用Spy ++,AHK Window Spy或Window Detective进行检查)
FindWindowEx
SendMessage
要在Firefox和Opera上获取当前URL,可以使用DDE和WWW_GetWindowInfo。Chrome似乎无法做到这一点(不再吗?)。
WWW_GetWindowInfo
这个问题的答案提供了有关它如何工作的更多信息,这是这段代码(正如我所解释的,它不再起作用- hAddressBox是0):
hAddressBox
0
var hAddressBox = FindWindowEx( intPtr, IntPtr.Zero, "Chrome_OmniboxView", IntPtr.Zero); var sb = new StringBuilder(256); SendMessage(hAddressBox, 0x000D, (IntPtr)256, sb); temp = sb.ToString();
所以我的问题是:是否有一种 新 方法来获取当前关注的选项卡的URL?(仅标题还不够)
编辑: 看来我的答案中的代码不再AutomationElement适用于更高版本的Chrome版本(尽管使用的想法仍然有效),因此请查看其他答案以查找不同版本。例如,以下是适用于Chrome 54的设备:https : //stackoverflow.com/a/40638519/377618
AutomationElement
以下代码似乎有效(由于icemanind的评论),但是却占用大量资源。找到elmUrlBar大约需要350毫秒…有点慢。
更不用说我们有chrome同时运行多个进程的问题。
chrome
// 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不满意,所以我使其速度更快(现在为50ms)并添加了一些URL验证,以确保获得正确的URL,而不是用户可能在网络上搜索的URL,或者仍然正在忙于输入URL。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; } }