我公司闸机有独立的通用二次开发包，考虑到C#语言在管理中的应用相当广泛，我公司特地在win32二次开发包上做了进一步封装，将底层的c函数封装成了托管的动态库，使用时，只需要将该托管的动态库引用到自己的C#工程中，就可以建立相应的全局类，通过类的函数来控制闸机。

由于.net框架版本较多，发展很快，我公司的托管动态是在.net2.0下编译的，应广大合作商的要求，本次我公司已经将该托管动态库的源码全部开放，大家可以打开托管动态的工程文件，编译成自己想要的版本，托管动态库不涉及复杂的底层操作，应该能在各个版本中均能不修改源码编译，如果遇到编译问题，烦请将不妥之处，发送至我公司邮箱：mail@HeroGod.com，谢谢！

该动态库的主要代码：
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
//该类是将二进制开发包中的函数，封装一下而已，最终形成C#的DLL，做到最大程序不影响上层应用
//封装的不妥之处，请指教：QQ 5326，25825
//请主要参考开发包中的C++头文件“sjkj_pctomac.h”

namespace SJKJ_PC2MAC_CS_DLL
{
    public unsafe class sjkjpc2mac
    {
        const string _sjkjdllname_ = "sjkj_pctomac.dll";

        //发送数据
        public bool sjkjsendtomac2(byte cmd, byte suid, string c1, string c2, string c3, byte dir, string macip)
        {
            StringBuilder sc1 = new StringBuilder(c1 + '\0', 50);
            StringBuilder sc2 = new StringBuilder(c2 + '\0', 50);
            StringBuilder sc3 = new StringBuilder(c3 + '\0', 50);
            StringBuilder smacip = new StringBuilder(macip + '\0', 24);
            return sjkjsendtomac(cmd, suid, sc1, sc2, sc3, dir, smacip) == 1;
        }

        //////////////////////////////////////////////////////////////////////////
        //在闸机没有显示屏的情况下，可以使用下面的简单函数
        //注意，此函数并不是开发包中导出的，而是封装的特例
        //顺向开闸或转动
        public void openIN(string macip)
        {
            sjkjsendtomac2(1, 0, "a", "a", "a", 1, macip);           
        }
        //反向开闸或转动
        public void openOUT(string macip)
        {
            sjkjsendtomac2(1, 0, "a", "a", "a", 0, macip);
        }
        //询问是否在线
        public void macLE(string macip)
        {
            sjkjsendtomac2(6, 0, "a", "a", "a", 1, macip);
        }
          
        //////////////////////////////////////////////////////////////////////////

        //准备接收数据
        public bool sjkjstart2()
        {
            return sjkjstart() == 1;
        }
        //检测是否有数据，此函应该循环执行
        public bool sjkjhavedata2(int timeout)
        {
            return sjkjhavedata(timeout) == 1;
        }
        //读取数据
        public bool sjkjreaddata2(ref byte cmd, ref byte ctp, ref string content, ref  int len,ref byte dir, ref string remoteip)
        {
            StringBuilder scontent = new StringBuilder(content, 32);
            StringBuilder sremoteip = new StringBuilder(remoteip + '\0', 24);
            fixed (byte* pcmd = &cmd, pctp = &ctp,pdir=&dir)
            {
                fixed (int* plen = &len)
                {
                    if (sjkjreaddata(pcmd, pctp, scontent, plen,pdir,sremoteip) == 1)
                    {
                        content = scontent.ToString();
                        remoteip = sremoteip.ToString();
                        return true;
                    }
                    else
                    {
                        return false;
                    }

                }

            }

        }
        //关闭读取
        public void sjkjstop2()
        {
            sjkjstop();
        }

        /*以下函数，是从开发包DLL中导出的，如果您对C#和C++的数据类型对应关系有兴趣，可以自行导出*/
        [DllImport(_sjkjdllname_, EntryPoint = "sjkjsendtomac", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)]
        public static extern int sjkjsendtomac(byte cmd, byte suid, StringBuilder c1, StringBuilder c2, StringBuilder c3, byte dir, StringBuilder macip);
       
        [DllImport(_sjkjdllname_, EntryPoint = "sjkjstart", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)]
        public static extern int sjkjstart();

       
        [DllImport(_sjkjdllname_, EntryPoint = "sjkjhavedata", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)]
        public static extern int sjkjhavedata(int timeout);

       
        [DllImport(_sjkjdllname_, EntryPoint = "sjkjreaddata", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)]
        public static extern int sjkjreaddata(byte* cmd, byte* ctp, StringBuilder content, int* len,byte* dir, StringBuilder remoteip);

       
        [DllImport(_sjkjdllname_, EntryPoint = "sjkjstop", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)]
        public static extern void sjkjstop(); 

    }
}