如何在C#中确定当前关注进程的名称

using System;
using System.Diagnostics;

class Program
{
    static void Main(string[] args)
    {
        // 获取当前进程的 ID
        Process[] processes = Process.GetProcessesByName("explorer");
        if (processes.Length > 0)
        {
            Console.WriteLine("Current Explorer process ID: " + processes[0].Id);
        }
        else
        {
            Console.WriteLine("No Explorer process is running.");
        }

        // 获取当前运行的 Explorer 进程的名称
        ProcessExplorer.MainWindowHandle

        // 使用 GetWindowText 获取 Explorer 进程的窗口标题
        IntPtr hWnd = Win32API.FindWindowEx(FindWindowExA(processes[0].MainWindowHandle, IntPtr.Zero, "Shell_TrayWnd", IntPtr.Zero), null, null);
        Win32API.GetWindowText(hWnd, processes[0].MainWindowTitle, System.Text.StringBuilder.MaxCreateSize);
        
        string explorerName = processes[0].MainWindowTitle;
        Console.WriteLine("Current Explorer window title: " + explorerName);
        Console.WriteLine("==========");

        // 使用 Process 类获取 Explorer 进程的路径（如果运行的是 Windows Explorer）
        processes = Process.GetProcessesByName(Path.GetFileNameWithoutExtension(explorerName));
        if (processes.Length > 0)
        {
            Console.WriteLine("Path of the Explorer process executing Windows Explorer: " + processes[0].MainModule.FileName);
        }
    }
}