WINCE 获取智能设备唯一编号

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.Runtime.InteropServices;//提供了一个方法集，这些方法用于分配非托管内存、复制非托管内存块、将托管类型转换为非托管类型，此外还提供了在与非托管代码交互时使用的其他杂项方法

namespace LogisticsManage

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        [DllImport("coredll.dll")]

        private extern static int GetDeviceUniqueID([In, Out] byte[] appdata,

                                                    int cbApplictionData,

                                                    int dwDeviceIDVersion,

                                                    [In, Out] byte[] deviceIDOuput,

                                                    out uint pcbDeviceIDOutput);

        private void button1_Click(object sender, EventArgs e)

        {

            byte[] buffer = GetDeviceID("MyAppString");

            StringBuilder sb = new StringBuilder();

            for (int x = ; x < buffer.Length; x++)

            {

                //sb.Append('{');

                sb.Append(string.Format("{0:x2}", buffer[x]));

                //sb.Append("} ");

            }

            textBox1.Text = sb.ToString();

        }

        private byte[] GetDeviceID(string AppString)

        {

            // Call the GetDeviceUniqueID

            byte[] AppData = new byte[AppString.Length];

            for (int count = ; count < AppString.Length; count++)

                AppData[count] = (byte)AppString[count];

            int appDataSize = AppData.Length;

            byte[] DeviceOutput = new byte[];

            uint SizeOut = ;

            GetDeviceUniqueID(AppData, appDataSize, , DeviceOutput, out SizeOut);

            return DeviceOutput;

        }

    }

}