我使用如下方法,运行时出现无法找到 PInvoke DLL“cellcore.dll”中的入口点“GetDeviceUniqueID”异常,这个怎么解决?
[DllImport("cellcore.dll")]
        private extern static int GetDeviceUniqueID([In, Out] byte[] appdata,
                                                    int cbApplictionData,
                                                    int dwDeviceIDVersion,
                                                    [In, Out] byte[] deviceIDOuput,
                                                    out uint pcbDeviceIDOutput);
        /// <summary>
        /// Windows Mobile 5.0 提供了一个新的 API 函数 GetDeviceUniqueID 专门用来获取设备 ID，它可以获取 Pocket PC 和 Smartphone 的设备 ID。
        /// </summary>
        /// <param name="AppString"></param>
        /// <returns></returns>

        public static byte[] GetDeviceID(string AppString)
        {
            // Call the GetDeviceUniqueID
            byte[] AppData = new byte[AppString.Length];
            for (int count = 0; count < AppString.Length; count++)
                AppData[count] = (byte)AppString[count];
            int appDataSize = AppData.Length;
            byte[] DeviceOutput = new byte[20];
            uint SizeOut = 20;
            GetDeviceUniqueID(AppData, appDataSize, 1, DeviceOutput, out SizeOut);
            return DeviceOutput;
        }