一、新创建一个C#窗体应用程序

 

二、首先需要在引用中添加对 System.Management.dll 的引用

 

三、在窗体中添加一个文本框和一个按钮，如下图所示：

 

四、添加后台代码，如下：

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.Diagnostics;using System.Management;namespace 获取进程的用户名{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        /// 
        /// 通过进程Id来获取进程的用户名        /// 
        /// 进程Id        /// 
             private static string GetProcessUserName(int processId)        {            string name = "";            SelectQuery query = new SelectQuery("select * from Win32_Process where processID=" + processId);            ManagementObjectSearcher searcher = new ManagementObjectSearcher(query);            try            {                foreach (ManagementObject disk in searcher.Get())                {                    ManagementBaseObject inPar = null;                    ManagementBaseObject outPar = null;                    inPar = disk.GetMethodParameters("GetOwner");                    outPar = disk.InvokeMethod("GetOwner", inPar, null);                    name = outPar["User"].ToString();                    break;                }            }            catch            {                name = "SYSTEM";            }            return name;        }        private void button1_Click(object sender, EventArgs e)        {            string pName = textBox1.Text;            Process[] ps = Process.GetProcessesByName(pName);            foreach (Process p in ps)            {                //弹出进程名和进程的用户名                MessageBox.Show(p.ProcessName + "||" + GetProcessUserName(p.Id));            }        }    }}

 

五、这样就能够得到要查询的进程的用户名了！！