using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using System.Runtime.InteropServices; 

namespace Win1
{
    public partial class Form1 : Form
    {
        //引入api
        [DllImport("ntdll.dll")]
        public static extern int ZwSuspendProcess(IntPtr ProcessId);
        [DllImport("ntdll.dll")]
        public static extern int ZwResumeProcess(IntPtr ProcessId);

        Process myProcess;
        public Form1()
        {
            InitializeComponent();
        }

        //启动一个.net程序
        private void button1_Click(object sender, EventArgs e)
        {
            myProcess = new Process();
            myProcess.StartInfo.FileName = "Win2.exe";
            myProcess.StartInfo.CreateNoWindow = true;
            myProcess.Start();
        }
        
        //挂起进程
        private void button2_Click(object sender, EventArgs e)
        {
            ZwSuspendProcess(myProcess.Handle);
        }
        
        //恢复进程
        private void button3_Click(object sender, EventArgs e)
        {
            ZwResumeProcess(myProcess.Handle);
        }
        
        //到指定时间挂起进程
        private void timer1_Tick(object sender, EventArgs e)
        {
            ZwSuspendProcess(myProcess.Handle);
            this.timer1.Enabled = false;//关Timer
        }

    }
}