我使用 Datalogic 公司的 GD4430 手持式掃描儀和隨附的 OPOS 驅(qū)動(dòng)程序。使用以下代碼，我設(shè)法解決了掃描儀的問(wèn)題。當(dāng)我啟動(dòng)該程序時(shí)，掃描儀變?yōu)榛顒?dòng)狀態(tài)，您可以進(jìn)行掃描。但我無(wú)法在 TextBox 中顯示結(jié)果。有沒(méi)有人看到錯(cuò)誤所在？Visual Studio 2010 C#using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace TestRead{public partial class Form1 : Form{    public Form1()    {        InitializeComponent();    }    private void Form1_Load(object sender, EventArgs e)    {                    axOPOSScanner1.BeginInit();        axOPOSScanner1.Open("USBHHScanner");         axOPOSScanner1.ClaimDevice(0);                    axOPOSScanner1.DeviceEnabled = true;        axOPOSScanner1.DataEventEnabled = true;        axOPOSScanner1.PowerNotify = 1; //(OPOS_PN_ENABLED);        axOPOSScanner1.DecodeData = true;    }                   void axOPOSScanner1_DataEvent(object sender, AxOposScanner_CCO._IOPOSScannerEvents_DataEventEvent e)            {                        textBox1.Text = axOPOSScanner1.ScanDataLabel;        textBox2.Text = axOPOSScanner1.ScanData.ToString();        axOPOSScanner1.DataEventEnabled = true;                               axOPOSScanner1.DataEventEnabled = true;    }  }}