C#对线程的操作

Process 类

  提供对本地和远程进程的访问并使您能够启动和停止本地系统进程。

一、根据进程名获取对象

 /// <summary>
        /// 根据进程名获取Process对象
        /// </summary>
        /// <param name="参数_进程名称"></param>
        /// <returns></returns>
        public static Process findProcessObjByProcessName(string f_strProcessName)
        {
            Process[] processes;
            //Get the list of current active processes.
            processes = System.Diagnostics.Process.GetProcesses();//获取说有进程
            //Grab some basic information for each process.
            for (int i = 0; i < processes.Length - 1; i++)
            {
                if (f_strProcessName.Equals(processes[i].ProcessName))//Equals:确定两个 String 对象是否具有相同的值。
                {
                    return processes[i];
                }
            }
            return null;
        }

二、模糊查找进程对象：

  /// <summary>
        /// 模糊查找进程对象
        /// </summary>
        /// <param name="f_strProcessName"></param>
        /// <returns></returns>
        public static List<Process> findProcessObjByFuzzyLookup(string f_strProcessName)
        {
            Process[] processes;
            List<Process> result = new List<Process>();
            //Get the list of current active processes.
            processes = System.Diagnostics.Process.GetProcesses();
            //Grab some basic information for each process.
            for (int i = 0; i < processes.Length - 1; i++)
            {
                if (processes[i].ProcessName.Contains(f_strProcessName))
                {
                    result.Add(processes[i]);
                }
            }
            return result;
        }

三、进程的新建和终止的操作过程

     public int CallPhoneExe(string arg) //arg为进程的命令行参数
      { WaitHandle[] waits =new WaitHandle[2]; //定义两个WaitHandle值，用以控制进程的执行过程
            waits[0] = HSTOP; //AutoResetEvent HSTOP = new AutoResetEvent(false);
            waits[1] = GlobalStop;//AutoResetEvent GlobalStop = new AutoResetEvent(false);
             int iReturn=0;
             Process p = new Process();//新建一个进程
            p.StartInfo.Arguments = arg; //进程的命令行参数
            p.StartInfo.FileName = filepath;//进程启动路径
            
            p.StartInfo.CreateNoWindow = true;//不显示新进程的窗口
            p.StartInfo.RedirectStandardOutput = true;//输出重定向
            p.StartInfo.RedirectStandardError = true;   //Redirect the error ouput!
            p.StartInfo.UseShellExecute = false; 
            p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;

            p.EnableRaisingEvents = true; 
            p.Exited += new EventHandler(p_Exited); //进程自然结束后启动p—Exited事件
            p.OutputDataReceived += new DataReceivedEventHandler(ChangeOutput);//进程有输出时，启动ChangeOutPut函数       

            p.Start();//进程启动
            p.BeginOutputReadLine();

            int hstop = WaitHandle.WaitAny(waits);//启动线程暂停，知道WaitHandle中传来有效信号
            switch (hstop)//判断信号是又哪个
            {
                case 0: //进程自然结束
                    if (p.WaitForExit(2000))
                        iReturn = p.ExitCode; //获取进程的返回值
                    else
                    {
                        CloseProcess();
                        iReturn = -2;
                    }
                    break;
                case 1: //进程被迫结束
                    p.Kill();//杀掉进程
                    if (!p.HasExited)
                    {                        
                        p.Kill();
                    }                    
                    iReturn = -3;
                    break;
            }
            HSTOP.Reset(); //HSTOP复位，这个变量指示进程自然结束，每次结束后都得自然复位           
            p.Close(); //创建的p关闭
            return iReturn;          
        }


        private void p_Exited(object sender, EventArgs e)
        {
            HSTOP.Set();
        }

//输出重定向函数
 private void ChangeOutput(object sendingProcess, DataReceivedEventArgs outLine)
        {
            if (!String.IsNullOrEmpty(outLine.Data)) //字符串不为空时
                MainForm.FireWriteText(outLine.Data,false);//将进程的输出信息转移
        }