C# 设备管理器交互发送密钥

我正在尝试编写一个简单的控制台程序，该程序将启动设备管理器，并通过按键在其中导航。到目前为止，我无法让他们在设备管理器中注册

该程序可以启动设备管理器，但在设备管理器中似乎没有按键。我知道通过使用Spy++，设备管理器的树部分被称为SysTreeView32

有什么建议吗

这是到目前为止我的代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using System.Windows.Forms;
using System.Threading;
using System.Runtime.InteropServices;

namespace Dev_Mgr_Auto

{
class Program
{

    [DllImport("user32.dll", EntryPoint = "FindWindow")]
    private static extern IntPtr FindWindow(string lp1, string lp2);

    [DllImport("user32.dll", ExactSpelling = true, CharSet = CharSet.Auto)]
    [return: MarshalAs(UnmanagedType.Bool)]
    private static extern bool SetForegroundWindow(IntPtr hWnd);





    static void Main(string[] args)
    {

        //start Device Manager
        Process.Start("devmgmt.msc");

         Thread.Sleep(1500);

        // find window handle of Device manager
         IntPtr handle = FindWindow("MMCMainFrame", "Device Manager");
        if (!handle.Equals(IntPtr.Zero))
        {
            // activate Device Danager window
            if (SetForegroundWindow(handle))
            {

                // send key "Tab"
                SendKeys.SendWait("{TAB}");
                // send key "Down" x 4
                SendKeys.SendWait("DOWN 4");
            }
        }


    }//end main

}//end class

}// end program

EDIT1:您必须以管理员身份运行该程序才能正常工作。

最终代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using System.Windows.Forms;
using System.Threading;
using System.Runtime.InteropServices;
using System.Windows.Automation;

namespace Video_Card_Updater
{
    class Program
{

    [DllImport("user32.dll", EntryPoint = "FindWindow")]
    private static extern IntPtr FindWindow(string lp1, string lp2);

    [DllImport("user32.dll", ExactSpelling = true, CharSet = CharSet.Auto)]
    [return: MarshalAs(UnmanagedType.Bool)]
    private static extern bool SetForegroundWindow(IntPtr hWnd);

    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, IntPtr lParam);

    static void Main(string[] args)
    {
       // this code needs a reference to UIAutomationClient and UIAutomationTypes
    Process process = Process.Start("devmgmt.msc");
    do
    {
        process.Refresh();
        Thread.Sleep(100);
    }
    while (process.MainWindowHandle == IntPtr.Zero);

    // get root element that corresponds to the process main window
    AutomationElement mainWindow = AutomationElement.FromHandle(process.MainWindowHandle);

    // get the first tree view control by its class name
    AutomationElement treeView = mainWindow.FindFirst(TreeScope.Subtree, new PropertyCondition(AutomationElement.ClassNameProperty, "SysTreeView32"));       

    // get the "Keyboards" node by its name
    AutomationElement Display = treeView.FindFirst(TreeScope.Subtree, new PropertyCondition(AutomationElement.NameProperty, "Display adapters"));

    // expand item
    ((ExpandCollapsePattern)Display.GetCurrentPattern(ExpandCollapsePattern.Pattern)).Expand();

    // get first display
    AutomationElement firstDisplay = Display.FindFirst(TreeScope.Children, PropertyCondition.TrueCondition);

    // set focus to display and do the following key commands:

    firstDisplay.SetFocus();

    SendKeys.SendWait("{ENTER}");

    Thread.Sleep(100);

    SendKeys.SendWait("{TAB 3}");

    Thread.Sleep(100);

    SendKeys.SendWait("{RIGHT}");

    Thread.Sleep(100);

    //ALT + P
    SendKeys.SendWait("%P");

    Thread.Sleep(100);

    SendKeys.SendWait("{ENTER}");

     } // end main


   }//end class

}// end program

我建议你改用这项技术。它适应了这种情况，下面是一个示例，它打开“Keyboards”节点，选择第一个键盘节点并模拟按ENTER键：

    static void Main(string[] args)
    {
        // this code needs a reference to UIAutomationClient and UIAutomationTypes
        Process process = Process.Start("devmgmt.msc");
        do
        {
            process.Refresh();
            Thread.Sleep(100);
        }
        while (process.MainWindowHandle == IntPtr.Zero);

        // get root element that corresponds to the process main window
        AutomationElement mainWindow = AutomationElement.FromHandle(process.MainWindowHandle);

        // get the first tree view control by its class name
        AutomationElement treeView = mainWindow.FindFirst(TreeScope.Subtree, new PropertyCondition(AutomationElement.ClassNameProperty, "SysTreeView32"));

        // get the "Keyboards" node by its name
        AutomationElement keyBoards = treeView.FindFirst(TreeScope.Subtree, new PropertyCondition(AutomationElement.NameProperty, "Keyboards"));

        // expand item
        ((ExpandCollapsePattern)keyBoards.GetCurrentPattern(ExpandCollapsePattern.Pattern)).Expand();

        // get first keyboard
        AutomationElement firstKeyboard = keyBoards.FindFirst(TreeScope.Children, PropertyCondition.TrueCondition);

        // open the first keyboard properties (focus + press ENTER)
        firstKeyboard.SetFocus();
        SendKeys.SendWait("{ENTER}");
    }

---

一旦您选择了一个项目，您想做什么？我想最终选择“显示驱动程序”，点击“更新驱动程序软件”，然后选择“自动搜索更新的软件”。我可以这样做所有这些击键，但由于某种原因，它们不会在设备管理器中注册。我的程序中必须有哪个引用才能使用它？哦，错过了，它给了我一个NullReferenceUnhandled错误：对象引用未设置为对象的实例。在这一行

（（ExpandCollapsePattern）keyBoards.GetCurrentPattern（ExpandCollapsePattern.Pattern））.Expand（）也许你的设备管理器没有一个名为“Keyboards”的节点。它有一个节点，大小写都一样。奇怪。也许在两次通话之间睡一觉。或者尝试其他节点名称。