动态调用链接库（dll） 续

20141118

最近一周做了一个关于仓库管理，拣货任务分配的模块，其中涉及到刷卡自动打印领取任务的功能点。

技术点：

C#调用C++、delphi的动态链接库。动态链接库的调用方法不同。效果也不相同。

DLL位置：执行程序根目录下面

例：

第一种：

[DllImport("shuipiao1.dll", EntryPoint = "checkticket", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.StdCall)]

第二种：

[DllImport("MifsDLL.dll", CharSet = CharSet.Ansi)]

第三种：
[DllImport("MifsDLL.dll", CharSet = CharSet.Ansi, EntryPoint = "mifs_anticoll", CallingConvention = CallingConvention.Cdecl)]

实际案例：

  #region 调用dll接口方法
        // 打开串口 OpenComm(char *commPort,DWORD baud)

        [DllImport("MifsDLL.dll", CharSet = CharSet.Ansi)]

        //        [DllImport("MifsDLL.dll", EntryPoint = "OpenComm", SetLastError = true,
        //CharSet = CharSet.Auto, ExactSpelling = false,
        //CallingConvention = CallingConvention.StdCall)]

        //打开串口
        public static extern Int16 OpenComm(string port, long baud);

        //装载密钥 WINAPI mifs_load_key(uchar _Mode, uchar _SecNr, uchar *Key)
        [DllImport("MifsDLL.dll", CharSet = CharSet.Ansi)]
        //打开串口
        public static extern Int16 mifs_load_key(uint Mode, uint SecNr, byte[] Key);

        [DllImport("MifsDLL.dll", CharSet = CharSet.Ansi)]
        //mifs_request_2 寻卡
        public static extern Int16 mifs_request_2(long mode);

        [DllImport("MifsDLL.dll", CharSet = CharSet.Ansi, EntryPoint = "mifs_anticoll", CallingConvention = CallingConvention.Cdecl)]
        public static extern Int16 mifs_anticoll(uint Bcnt, byte[] port);

        //mifs_select(uchar *_Snr)

        [DllImport("MifsDLL.dll", CharSet = CharSet.Ansi, EntryPoint = "mifs_select", CallingConvention = CallingConvention.Cdecl)]
        //选卡
        public static extern Int16 mifs_select(byte[] port);

        //mifs_authentication(uchar auth_mode,uchar *snr,uchar key_sector)
        [DllImport("MifsDLL.dll", CharSet = CharSet.Ansi)]
        //认证秘钥
        public static extern Int16 mifs_authentication(uint mode, byte[] Snr, uint Key);

        //读卡数据 mifs_read(uchar _Adr, uchar *_Data)  出口函数16byte

        [DllImport("MifsDLL.dll", CharSet = CharSet.Ansi, EntryPoint = "mifs_read", CallingConvention = CallingConvention.Cdecl)]
        public static extern Int16 mifs_read(uint Adr, byte[] Data);

        //int WINAPI mifs_write(uchar _Adr, uchar *_Data) 写员工号
        [DllImport("MifsDLL.dll", CharSet = CharSet.Ansi)]
        public static extern Int16 mifs_write(uint Adr, byte[] Data);

        // 蜂鸣 mifs_Buzzer(uchar bb)
        [DllImport("MifsDLL.dll", EntryPoint = "mifs_Buzzer", SetLastError = true,
         CharSet = CharSet.Auto, ExactSpelling = false,
         CallingConvention = CallingConvention.StdCall)]
        public static extern void mifs_Buzzer(int bb);
        #endregion