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【CSharp】多线程报告系统进程信息

作者:万雅虎 / 发布于2012/11/22/ 501

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Management;
using Microsoft.VisualBasic.Devices;

//启动后台进程...

private void SatrtUp(object sender, EventArgs e)
        {
            setDesktopLocation();
            System.Threading.Thread.Sleep(10);
            
            backgroundWorker1.RunWorkerAsync();
        }

//使用了 backgroundWorker控件
        /// <summary>
        /// 挂起后台进程实时检查进程的更新...
        /// </summary>
        ListViewItem _li = new ListViewItem();
        private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
        {
            while (true)
            {
                // Create event query to be notified within 1 second of 
                // a change in a service
                EventQuery query = new EventQuery();
                query.QueryString = "SELECT * FROM" +
                    " __InstanceCreationEvent WITHIN 1 " +
                    "WHERE TargetInstance isa /"Win32_Process/"";

                // Initialize an event watcher and subscribe to events 
                // that match this query
                ManagementEventWatcher watcher =
                    new ManagementEventWatcher(query);
                // times out watcher.WaitForNextEvent in 5 seconds

              //  watcher.Options.Timeout = new TimeSpan(0, 0, 5);

                string _now = DateTime.Now.ToString();
                try
                {
                    ManagementBaseObject ex = watcher.WaitForNextEvent();

                    if (((ManagementBaseObject)ex["TargetInstance"])["Name"].ToString() == "igfxsrvc.exe")
                    {  _li.Text = "内存释放一次:";  }
                    else
                    { _li.Text = ((ManagementBaseObject)ex["TargetInstance"])["Name"].ToString();}

                    _li.SubItems.Add(((ManagementBaseObject)ex["TargetInstance"])["ExecutablePath"].ToString());
                    _li.SubItems.Add(_now );
                }
                finally
                {
                    backgroundWorker1.CancelAsync();
                }
            }
        }
    private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {

            try
            {
                if (_li != null)
                {
                    listView1.Items.Add(_li);

                }
                backgroundWorker1.RunWorkerAsync();

                //_li.SubItems.Clear();
                _li = (ListViewItem)(_li.Clone());
            }
            catch (Exception exp)
            {
                MessageBox.Show(exp.Message,"Error!");
            }
        }

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