如何使用 UI 自动化激活 Google Chrome 标签项 [英] How to activate a Google Chrome tab item using UI Automation

问题描述

我正在使用 C# 应用程序中的此代码在 Google Chrome 中查找标签:

I am using this code from a C# application to find a tab in Google Chrome:

        Process[] procsChrome = Process.GetProcessesByName("chrome");
        foreach (Process chrome in procsChrome)
        {
            // the chrome process must have a window
            if (chrome.MainWindowHandle == IntPtr.Zero)
            {
                continue;
            }

            AutomationElement root = AutomationElement.FromHandle(chrome.MainWindowHandle);
            /*
            Condition condNewTab = new PropertyCondition(AutomationElement.NameProperty, "Nueva pestaña");
            AutomationElement elmNewTab = root.FindFirst(TreeScope.Descendants, condNewTab);
            // get the tabstrip by getting the parent of the 'new tab' button 
            TreeWalker treewalker = TreeWalker.ControlViewWalker;
            AutomationElement elmTabStrip = treewalker.GetParent(elmNewTab);
             */
            // loop through all the tabs and get the names which is the page title 
            Condition condTabItem = new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.TabItem);
            foreach (AutomationElement tabitem in root.FindAll(TreeScope.Descendants, condTabItem))
            {
                Console.WriteLine(tabitem.Current.Name);

                // I NEED TO ACTIVATE THE TAB HERE

                break;
            }

            Condition condUrl = new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Edit);
            foreach (AutomationElement edit in root.FindAll(TreeScope.Descendants, condUrl))
            {
                string value = ((System.Windows.Automation.ValuePattern)edit.GetCurrentPattern(ValuePattern.Pattern)).Current.Value;
                Console.WriteLine(value);
            }

        }

我需要使用 UI 自动化选择某些选项卡项.我该怎么做?

I need to select certain tab item using UI Automation. How can I do it?

推荐答案

对于那些绝望的灵魂，仍在寻找答案.这是我的方法，完全基于 UI 自动化 API，没有聚焦窗口和发送点击事件或热键.要使用下面的代码，您需要使用 UIAutomationCore.dll 的互操作参考，如 Guy Barker.

For those desperate souls, still searching for an answer. Here is my method, based solely on UI Automation API, without focusing windows and sending click events or hotkeys. To use the code below you need to use interop reference for UIAutomationCore.dll as described by Guy Barker.

    Process[] allChromeProcesses = Process.GetProcessesByName("chrome");
    Process[] mainChromes = allChromeProcesses.Where(p => !String.IsNullOrEmpty(p.MainWindowTitle)).ToArray();
    //...
    //Here you need to check if you have found correct chrome instance
    //...
    var uiaClassObject = new CUIAutomation();

    IUIAutomationElement chromeMainUIAElement = uiaClassObject.ElementFromHandle(mainChromes[0].MainWindowHandle);
    //UIA_ControlTypePropertyId =30003, UIA_TabItemControlTypeId = 50019
    IUIAutomationCondition chromeTabCondition = uiaClassObject.CreatePropertyCondition(30003, 50019); 
    var chromeTabCollection = chromeMainUIAElement.FindAll(TreeScope.TreeScope_Descendants, chromeTabCondition);
    //UIA_LegacyIAccessiblePatternId = 10018, 0 -> Number of Chrome tab you want to activate
    var lp = chromeTabCollection.GetElement(0).GetCurrentPattern(10018) as IUIAutomationLegacyIAccessiblePattern;
    lp.DoDefaultAction();

您唯一需要记住的是，不可能在标签页中搜索最小化的 Chrome 窗口.

The only thing you need to remember is that searching of tabs for minimized Chrome window is impossible.

这篇关于如何使用 UI 自动化激活 Google Chrome 标签项的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！