L3系列非接触式智能卡读写器C#开发包

 L3系列非接触式智能卡读写器C#开发包在“LotusCardDriver.cs”文件中定义了，打开设备，关闭设备，密码验证，寻卡，防冲突，写卡，读卡等函数接口。

 public const int RT_NOT_HALT = 0x26;
        public const int RT_ALL = 0x52;
        public const int AM_A = 0x60;
        public const int AM_B = 0x61;
        /**
         * 打开设备
         *
         * @param strDeviceName
         *            串口设备名称
         * @param nVID
         *            USB设备VID
         * @param nPID
         *            USB设备PID
         * @param nUsbDeviceIndex
         *            USB设备索引
         * @param unRecvTimeOut
         *            接收超时
         * @param pLotusCardExtendReadWriteCallBack 外部读写通道回调函数 只要针对ANDROID
         *             如果没有设备写权限时，可以使用外部USB或串口进行通讯，
         *             需要改造callBackProcess中相关代码完成读写工作 目前范例提供USB操作
         * @return 句柄
         */

        [DllImport("LotusCardDriver.dll", EntryPoint = "LotusCardOpenDevice", SetLastError = true,
             CharSet = CharSet.Ansi, ExactSpelling = false,
             CallingConvention = CallingConvention.StdCall)]
        public static extern int LotusCardOpenDevice(string pszDeviceName, int nVID, int nPID, int nUsbDeviceIndex,uint unRecvTimeOut, OnLotusCardExtendReadWriteCallBackFunc CallBackFunc);

        /**
         * 关闭设备
         *
         * @param nDeviceHandle
         *            设备句柄
         */
        [DllImport("LotusCardDriver.dll", EntryPoint = "LotusCardCloseDevice", SetLastError = true,
             CharSet = CharSet.Auto, ExactSpelling = false,
             CallingConvention = CallingConvention.StdCall)]
        public static extern void LotusCardCloseDevice(int nDeviceHandle);

        /**
         * 蜂鸣
         * @param nDeviceHandle
         *            设备句柄
         * @param nDeviceHandle 设备句柄
         * @param nBeepLen 蜂鸣长度 毫秒为单位
         * @return true = 成功
         */
        [DllImport("LotusCardDriver.dll", EntryPoint = "LotusCardBeep", SetLastError = true,
             CharSet = CharSet.Auto, ExactSpelling = false,
             CallingConvention = CallingConvention.StdCall)]
        public static extern int LotusCardBeep(int nDeviceHandle, int nBeepLen);


        /**
         * 寻卡
         *
         * @param nDeviceHandle
         *            设备句柄   
         * @param nRequestType
         *            请求类型
         * @param tLotusCardParam
         *            结果值 用里面的卡片类型
         * @return true = 成功
         */
        [DllImport("LotusCardDriver.dll", EntryPoint = "LotusCardRequest", SetLastError = true,
             CharSet = CharSet.Auto, ExactSpelling = false,
             CallingConvention = CallingConvention.StdCall)]
        public static extern int LotusCardRequest(int nDeviceHandle, int nRequestType, ref LotusCardParamStruct sttLotusCardParam);

        /**
         * 防冲突
         *
         * @param nDeviceHandle
         *            设备句柄
         * @param tLotusCardParam
         *            结果值 用里面的卡号
         * @return true = 成功
         */
        [DllImport("LotusCardDriver.dll", EntryPoint = "LotusCardAnticoll", SetLastError = true,
             CharSet = CharSet.Auto, ExactSpelling = false,
             CallingConvention = CallingConvention.StdCall)]
        public static extern int LotusCardAnticoll(int nDeviceHandle, ref LotusCardParamStruct sttLotusCardParam);

        /**
         * 选卡
         *
         * @param nDeviceHandle
         *            设备句柄
         * @param tLotusCardParam
         *            参数(使用里面的卡号)与结果值(使用里面的卡容量大小)
         * @return true = 成功
         */
        [DllImport("LotusCardDriver.dll", EntryPoint = "LotusCardSelect", SetLastError = true,
             CharSet = CharSet.Auto, ExactSpelling = false,
             CallingConvention = CallingConvention.StdCall)]

此处不一一列举，详情见“L3系列非接触式智能卡读写器C#开发包范例源码”。