C# 检查当前用户的程序是否正在运行

Question

我需要检查程序 ( xyz.exe) 是否正在运行，但仅限于当前用户。无论使用什么方法都不需要提升权限，并且必须运行速度快（因此 WMI 已被淘汰）。

Process.GetProcessesByName("xyz")返回所有登录用户的“xyz”结果...但我只关心当前用户。

有想法吗？

Answer 1

使用当前进程SessionId来过滤进程列表：

    public static bool IsProcessRunningSameSession(string processName)
    {
        var currentSessionID = Process.GetCurrentProcess().SessionId;
        return Process.GetProcessesByName(processName).Where(p => p.SessionId == currentSessionID).Any();
    }

Answer 2

我在这里找到了答案： http://dotbay.blogspot.com/2009/06/finding-owner-of-process-in-c.html

我会复制/粘贴它，以防博客被忽略。

////
        // 'WindowsIdentity' Extension Method Demo: 
        //   Enumerate all running processes with their associated Windows Identity
        ////

        foreach (var p in Process.GetProcesses())
        {
            string processName;

            try
            {
                processName = p.WindowsIdentity().Name;

            }
            catch (Exception ex)
            {

                processName = ex.Message; // Probably "Access is denied"
            }

            Console.WriteLine(p.ProcessName + " (" + processName + ")");
        }

这是对应的类：

//-----------------------------------------------------------------------
// <copyright file="ProcessExtensions.cs" company="DockOfTheBay">
//     http://www.dotbay.be
// </copyright>
// <summary>Defines the ProcessExtensions class.</summary>
//-----------------------------------------------------------------------

namespace DockOfTheBay
{
    using System;
    using System.Diagnostics;
    using System.Runtime.InteropServices;
    using System.Security.Principal;

    /// <summary>
    /// Extension Methods for the System.Diagnostics.Process Class.
    /// </summary>
    public static class ProcessExtensions
    {
        /// <summary>
        /// Required to query an access token.
        /// </summary>
        private static uint TOKEN_QUERY = 0x0008;

        /// <summary>
        /// Returns the WindowsIdentity associated to a Process
        /// </summary>
        /// <param name="process">The Windows Process.</param>
        /// <returns>The WindowsIdentity of the Process.</returns>
        /// <remarks>Be prepared for 'Access Denied' Exceptions</remarks>
        public static WindowsIdentity WindowsIdentity(this Process process)
        {
            IntPtr ph = IntPtr.Zero;
            WindowsIdentity wi = null;
            try
            {
                OpenProcessToken(process.Handle, TOKEN_QUERY, out ph);
                wi = new WindowsIdentity(ph);
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                if (ph != IntPtr.Zero)
                {
                    CloseHandle(ph);
                }
            }

            return wi;
        }

        [DllImport("advapi32.dll", SetLastError = true)]
        private static extern bool OpenProcessToken(IntPtr processHandle, uint desiredAccess, out IntPtr tokenHandle);

        [DllImport("kernel32.dll", SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool CloseHandle(IntPtr hObject);
    }
}