C#获取Honeywell voyager 1400g扫码后的数据
一、在类方法中加入
System.IO.Ports.SerialPort com;
二、在构造方法中加入
try
{
com = new System.IO.Ports.SerialPort("COM3",19600);
com.Open();
com.DataReceived += Com_DataReceived;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
三、加入接收扫码后的数据的方法
private void Com_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
StringBuilder sb = new StringBuilder();
do
{
int count = com.BytesToRead;
if (count == 0)
return;
receiveBytes = new byte[count];
com.Read(receiveBytes, 0, count);
for (int i = 0; i < receiveBytes.Length; i++)
{
char c = Convert.ToChar(receiveBytes[i]);
sb.Append(c);
}
} while (com.BytesToRead > 0);
string str=sb.ToString();
}
四、在窗体关闭方法中加入
if (com.IsOpen)
{
com.Close();
com.Dispose();
}