在线结帖！！扫描枪信息相关！

Question

急！急！急！偶有一扫描枪，现在想通C#得到它的型号等基本信息。因为公司要求：只有一个特定型号的扫描枪才可以扫描！请教各个大虾该如何操作！！！急！

Answer 1

using System;
using System.Collections.Generic;
using System.Text;
using System.IO.Ports;
using System.Threading;namespace PortChatTest
{
    class PortChat
    {
        static bool _continue;
        static SerialPort _serialPort;        static void Main(string[] args)
        {
            string name;
            string message;
            StringComparer stringComparer = StringComparer.OrdinalIgnoreCase;
            Thread readThread = new Thread(Read);            // Create a new SerialPort object with default settings.
            _serialPort = new SerialPort();            // Allow the user to set the appropriate properties.
            _serialPort.PortName = SetPortName(_serialPort.PortName);
            _serialPort.BaudRate = SetPortBaudRate(_serialPort.BaudRate);
            _serialPort.Parity = SetPortParity(_serialPort.Parity);
            _serialPort.DataBits = SetPortDataBits(_serialPort.DataBits);
            _serialPort.StopBits = SetPortStopBits(_serialPort.StopBits);
            _serialPort.Handshake = SetPordtHandshake(_serialPort.Handshake);            // Set the read/write timeouts
            _serialPort.ReadTimeout = 500;
            _serialPort.WriteTimeout = 500;            _serialPort.Open();
            _continue = true;
            readThread.Start();            Console.Write("Name: ");
            name = Console.ReadLine();            Console.WriteLine("Type QUIT to exit");            while (_continue)
            {
                message = Console.ReadLine();                if (stringComparer.Equals("quit", message))
                {
                    _continue = false;
                }
                else
                {
                    _serialPort.WriteLine(
                        String.Format("<{0}>: {1}", name, message));
                }
            }            readThread.Join();
            _serialPort.Close();
        }        public static void Read()
        {
            while (_continue)
            {
                try
                {
                    string message = _serialPort.ReadLine();
                    Console.WriteLine(message);
                }
                catch (TimeoutException) { }
            }
        }        public static string SetPortName(string defaultPortName)
        {
            string portName;            Console.WriteLine("Available Ports:");
            foreach (string s in SerialPort.GetPortNames())
            {
                Console.WriteLine("   {0}", s);
            }            Console.Write("COM port({0}): ", defaultPortName);
            portName = Console.ReadLine();            if (portName == "")
            {
                portName = defaultPortName;
            }
            return portName;
        }        public static int SetPortBaudRate(int defaultPortBaudRate)
        {
            string baudRate;            Console.Write("Baud Rate({0}): ", defaultPortBaudRate);
            baudRate = Console.ReadLine();            if (baudRate == "")
            {
                baudRate = defaultPortBaudRate.ToString();
            }            return int.Parse(baudRate);
        }        public static Parity SetPortParity(Parity defaultPortParity)
        {
            string parity;            Console.WriteLine("Available Parity options:");
            foreach (string s in Enum.GetNames(typeof(Parity)))
            {
                Console.WriteLine("   {0}", s);
            }            Console.Write("Parity({0}):", defaultPortParity.ToString());
            parity = Console.ReadLine();            if (parity == "")
            {
                parity = defaultPortParity.ToString();
            }            return (Parity)Enum.Parse(typeof(Parity), parity);
        }        public static int SetPortDataBits(int defaultPortDataBits)
        {
            string dataBits;            Console.Write("Data Bits({0}): ", defaultPortDataBits);
            dataBits = Console.ReadLine();            if (dataBits == "")
            {
                dataBits = defaultPortDataBits.ToString();
            }            return int.Parse(dataBits);
        }        public static StopBits SetPortStopBits(StopBits defaultPortStopBits)
        {
            string stopBits;            Console.WriteLine("Available Stop Bits options:");
            foreach (string s in Enum.GetNames(typeof(StopBits)))
            {
                Console.WriteLine("   {0}", s);
            }            Console.Write("Stop Bits({0}):", defaultPortStopBits.ToString());
            stopBits = Console.ReadLine();            if (stopBits == "")
            {
                stopBits = defaultPortStopBits.ToString();
            }            return (StopBits)Enum.Parse(typeof(StopBits), stopBits);
        }        public static Handshake SetPordtHandshake(Handshake defaultPortHandshake)
        {
            string handshake;            Console.WriteLine("Available Handshake options:");
            foreach (string s in Enum.GetNames(typeof(Handshake)))
            {
                Console.WriteLine("   {0}", s);
            }            Console.Write("Stop Bits({0}):", defaultPortHandshake.ToString());
            handshake = Console.ReadLine();            if (handshake == "")
            {
                handshake = defaultPortHandshake.ToString();
            }            return (Handshake)Enum.Parse(typeof(Handshake), handshake);
        }
    }
}