using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.Windows.Forms;
using?System.Diagnostics;
using?System.IO;
using?System.Runtime.InteropServices;

namespace?攝像頭讀取條形碼
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{
????????????Init（）;
????????}

????????void?pro_OutputDataReceived（object?sender?DataReceivedEventArgs?e）
????????{
????????????//可通過調(diào)用?CancelOutputRead?取消異步讀取操作。可通過調(diào)用方或事件處理程序取消讀取操作。取消之后，可以再次調(diào)用?BeginOutputReadLine?繼續(xù)進行異步讀取操作。
????????????if?（!string.IsNullOrEmpty（e.Data））
????????????{
????????????????//lin