Windows mobile 下读取手机SIM卡信息

最近在忙一个移动警务的项目，需要获取SIM卡的信息，来做身份的验证。考虑到获取：国际移动设备识别码（IMEI：International Mobile Equipment Identification Number）和国际移动用户识别码（IMSI：International Mobile Subscriber Identification Number），读取这两个号码用到TAPI的lineGetGeneralInfo()函。在新版的OpenNetCF里没有发现对这个函数的封装（也许我没找到），于是到网上找了找，找到一个以前版本OpenNetCF里的：TapiLib.dll,包含对Windows ce phone api 的封装（TAPI）,综合网上的一些资料，实现代码如下：

public struct GeneralInfo
    {
        public string Manufacturer;
        public string Model;
        public string Revision;
        public string SerialNumber;
        public string SubscriberNumber;
    }

    /// <summary>
    /// Tapi控制类
    /// </summary>
    public class ControlTapi
    {

[DllImport("cellcore.dll")]
private static extern int lineGetGeneralInfo(IntPtr hLigne,byte[]lpLineGeneralInfo );

        /// <summary>
        /// 调用cellcore.dll获取sim卡的综合信息
        /// </summary>
        /// <param name="l"></param>
        /// <returns></returns>
        private GeneralInfo GetGeneralInfo(Line l)
        {
            GeneralInfo lgi = new GeneralInfo();
            byte[] buffer = new byte[512];
            BitConverter.GetBytes(512).CopyTo(buffer, 0);

            if (lineGetGeneralInfo(l.hLine, buffer) != 0)
            {
                throw new System.ComponentModel.Win32Exception(System.Runtime.InteropServices.Marshal.GetLastWin32Error(), "TAPI Error: " + System.Runtime.InteropServices.Marshal.GetLastWin32Error().ToString("X"));
            }

            int subscsize = BitConverter.ToInt32(buffer, 44);
            int subscoffset = BitConverter.ToInt32(buffer, 48);
            lgi.SubscriberNumber = System.Text.Encoding.Unicode.GetString(buffer, subscoffset, subscsize).ToString();
            lgi.SubscriberNumber = lgi.SubscriberNumber.Replace("\0", "");
            return lgi;

}

        /// <summary>
        /// 获取sim卡的IMSI
        /// </summary>
        /// <returns></returns>
        public static string GetIMSINumber()
        {
            string result = "";
            try
            {
                Tapi t = new Tapi();
                t.Initialize();
                Line l = t.CreateLine(0, LINEMEDIAMODE.INTERACTIVEVOICE, OpenNETCF.Tapi.LINECALLPRIVILEGE.MONITOR);
                ControlTapi ctapi = new ControlTapi();
                GeneralInfo gi = ctapi.GetGeneralInfo(l);

                result = gi.SubscriberNumber;
                l.Dispose();
                t.Shutdown();

            }
            catch// (Exception ex)
            {
                result = "";
            }

return result;

}

        /// <summary>
        /// 获取IMEI的号码
        /// </summary>
        /// <returns></returns>
        public static string GetIMEINumber()
        {
            string result = "";
            try
            {
                Tapi t = new Tapi();
                t.Initialize();
                Line l = t.CreateLine(0, LINEMEDIAMODE.INTERACTIVEVOICE, OpenNETCF.Tapi.LINECALLPRIVILEGE.MONITOR);
                ControlTapi ctapi = new ControlTapi();
                GeneralInfo gi = ctapi.GetGeneralInfo(l);
                result = gi.SerialNumber;
                l.Dispose();
                t.Shutdown();

            }
            catch// (Exception ex)
            {
                result = "";
            }

return result;
}