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   源码介绍

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持续读卡是指一直监控读卡，读卡是需要你提前把身份证放在读卡器上面，读卡器值读取一次

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace 身份证阅读器F200
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            int nRet = ReadCardAPI.Syn_FindReader();
            if (nRet > 1000)
            {
                textBox1.Text  = "读卡器连接在USB端口 "   nRet;
            }
        }
        private void button2_Click(object sender, EventArgs e)
        {
            textBox1.Text = "";
            int nRet;
            IDCardData idcardData = new IDCardData();
            var m_iPort = ReadCardAPI.findUSBDriverDevice();
            byte[] pucIIN = new byte[4];
            byte[] pucSN = new byte[8];
            byte[] ctmp = new byte[255];
            try
            {
                nRet = ReadCardAPI.Syn_OpenPort(m_iPort);
                if (nRet == 0)
                {
                    nRet = ReadCardAPI.Syn_StartFindIDCard(m_iPort, ref pucIIN, 0);
                    Thread.Sleep(10);
                    nRet = ReadCardAPI.Syn_SelectIDCard(m_iPort, ref pucSN, 0);
                    Thread.Sleep(10);
                    nRet = ReadCardAPI.Syn_ReadMsg(m_iPort, 0, ref idcardData);
                    textBox1.Text  = idcardData.Name;
                }
                ReadCardAPI.Syn_ClosePort(m_iPort);
            }
            catch
            {
                ReadCardAPI.Syn_ClosePort(m_iPort);
            }
        }
        bool x = false;
        private void button3_Click(object sender, EventArgs e)
        {
            timer1.Enabled = true;
            byte[] pucIIN = new byte[4];
            byte[] pucSN = new byte[8];
            byte[] ctmp = new byte[255];
            ReadCardAPI.Syn_SetPhotoPath(1, ctmp);
            var m_iPort = ReadCardAPI.Syn_FindReader();
            int nRet = ReadCardAPI.Syn_OpenPort(m_iPort);
            nRet = ReadCardAPI.Syn_StartFindIDCard(m_iPort, ref pucIIN, 0);
            Thread.Sleep(10);
            nRet = ReadCardAPI.Syn_SelectIDCard(m_iPort, ref pucSN, 0);
            Thread.Sleep(10);
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            var m_iPort = ReadCardAPI.Syn_FindReader();
            IDCardData idcardData = new IDCardData();
            byte[] pucIIN = new byte[4];
            byte[] pucSN = new byte[8];
            byte[] ctmp = new byte[255];
            ReadCardAPI.Syn_SetPhotoPath(1, ctmp);
            int nRet = ReadCardAPI.Syn_OpenPort(m_iPort);
            if (nRet == 0)
            {
               
                int dq = ReadCardAPI.Syn_ReadMsg(m_iPort, 0, ref idcardData);
                if (dq == 0 || dq == 1)
                {
                    this.Invoke(new EventHandler(delegate
                    {
                        timer1.Enabled = false;
                        textBox1.Text  = idcardData.Name;
                    }));
                }
            }
        }
    }
}