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.Management;
using Microsoft.Win32;
using System.Threading;

namespace WindowsFormsApp
{
public partial class MainForm : Form
    {
public MainForm()
        {
InitializeComponent();
        }

private void btnGetInfo_Click(object sender, EventArgs e)
        {
txtCPU.Text = MainForm.getCpu();
txtDisk.Text = MainForm.GetDiskVolumeSerialNumber();
        }
private void btnMake_Click(object sender, EventArgs e)
        {
txtMNum.Text = MainForm.getMNum();
txtRNum.Text = MainForm.getRNum();
        }

private void btnRegister_Click(object sender, EventArgs e)
        {
if (!CheckReg())
            {
Registry.SetValue("HKEY_LOCAL_MACHINE\\SOFTWARE\\mysoft", "SoftInfo", txtRNum.Text.Trim(), RegistryValueKind.String);
MessageBox.Show("注册成功！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }
private void btnGetReg_Click(object sender, EventArgs e)
        {
CheckReg();
        }


// 取得设备硬盘的卷标号
public static string GetDiskVolumeSerialNumber()
        {
ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration"




    
);
ManagementObject disk = new ManagementObject("win32_logicaldisk.deviceid='C:'");
disk.Get();
return disk.GetPropertyValue("VolumeSerialNumber").ToString();
        }

//获得CPU的序列号
public static string getCpu()
        {
string strCpu = null;
ManagementClass myCpu = new ManagementClass("win32_Processor");
ManagementObjectCollection myCpuConnection = myCpu.GetInstances();
foreach (ManagementObject myObject in myCpuConnection)
            {
strCpu = myObject.Properties["Processorid"].Value.ToString();
break;
            }
return strCpu;
        }

//生成机器码
public static string getMNum()
        {
string strNum = getCpu() + GetDiskVolumeSerialNumber();//获得24位Cpu和硬盘序列号
string strMNum = strNum.Substring(0, 24);//从生成的字符串中取出前24个字符做为机器码
return strMNum;
        }
public static int[] intCode = new int[127];//存储密钥
public static int[] intNumber = new int[25];//存机器码的Ascii值
public static char[] Charcode = new char[25];//存储机器码字
public static void setIntCode()//给数组赋值小于10的数
        {
for (int i = 1; i < intCode.Length; i++)
            {
intCode[i] = i % 9;
            }
        }


//生成注册码      
public static string getRNum()
        {
setIntCode();//初始化127位数组
for (int i




    
 = 1; i < Charcode.Length; i++)//把机器码存入数组中
            {
Charcode[i] = Convert.ToChar(getMNum().Substring(i - 1, 1));
            }
for (int j = 1; j < intNumber.Length; j++)//把字符的ASCII值存入一个整数组中。
            {
intNumber[j] = intCode[Convert.ToInt32(Charcode[j])] + Convert.ToInt32(Charcode[j]);
            }
string strAsciiName = "";//用于存储注册码
for (int j = 1; j < intNumber.Length; j++)
            {
if (intNumber[j] >= 48 && intNumber[j] <= 57)//判断字符ASCII值是否0－9之间
                {
strAsciiName += Convert.ToChar(intNumber[j]).ToString();
                }
else if (intNumber[j] >= 65 && intNumber[j] <= 90)//判断字符ASCII值是否A－Z之间
                {
strAsciiName += Convert.ToChar(intNumber[j]).ToString();
                }
else if (intNumber[j] >= 97 && intNumber[j] <= 122)//判断字符ASCII值是否a－z之间
                {
strAsciiName += Convert.ToChar(intNumber[j]).ToString();
                }
else//判断字符ASCII值不在以上范围内
                {
if (intNumber[j] > 122)//判断字符ASCII值是否大于z
                    {
strAsciiName += Convert.ToChar(intNumber[j] - 10).ToString();
                    }
else
                    {
strAsciiName += Convert.ToChar(intNumber[j] - 9).ToString();
                    }
                }
            }
return strAsciiName;
        }



/// <summary>
/// 检测是否注册
/// </summary>
/// <returns></returns>
private bool CheckReg()
        {
try
            {
string str = Registry.GetValue("HKEY_LOCAL_MACHINE\\SOFTWARE\\mysoft", "SoftInfo", 0).ToString();
if (string.IsNullOrEmpty(str) || (str != txtRNum.Text.Trim()))
                {
MessageBox.Show("本软件未经许可，不能使用！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return false;
                }
else
                {
MessageBox.Show("本软件已经注册，不需重复注册！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return true;
                }
            }
catch
            {
MessageBox.Show("本软件未经许可，不能使用！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return false;
            }
        }

    }
}