C# POS机客显
最近做winform收银机,设计顾显及打印小票总结。
1、顾显(串口COM1)
只涉及到总计,所以只是简单的功能。
public static ClientDisplayResult Display(decimal total, bool isClear=false) { var result = new ClientDisplayResult(); string[] ports = SerialPort.GetPortNames(); if (ports.Length == 0) { result.Result = false; result.Message = "未检测到串行通信接口"; Logger.Error(result.Message); return result; } SerialPort serialPort = new SerialPort(); try { // 串行端口 Windows:COM1 serialPort.PortName = "COM1"; //串口波特率 默认:2400 serialPort.BaudRate = 2400; //停止位 默认 serialPort.StopBits = StopBits.One; //数据位 默认 serialPort.DataBits = 8; if (!serialPort.IsOpen) { serialPort.Open(); } //清空接收缓冲区数据 serialPort.DiscardInBuffer(); if (isClear) { //清屏\f serialPort.WriteLine(((char)12).ToString()); } else { //状态,合计提示灯亮(ESCs2) var text = ((char)27).ToString() + ((char)115).ToString() + ((char)50).ToString(); serialPort.Write(text); //显示收款金额(EscQA金额CR) text = ((char)27).ToString() + ((char)81).ToString() + ((char)65).ToString() + total.ToString() + ((char)13).ToString(); serialPort.Write(text); } result.Result = true; return result; } catch (Exception ex) { Logger.Error("顾显异常",ex); result.Result = false; result.Message = ex.Message; return result; } finally { serialPort.Close(); serialPort.Dispose(); } }
=====下面是客显功能较全===============
/// <summary> /// 客显 /// </summary> public class CustomerDisplay { #region 成员变量 private string spPortName; private int spBaudRate; private StopBits spStopBits; private int spDataBits; #endregion --成员变量 #region 属性 /// <summary> /// 客显发送类型 /// </summary> public CustomerDispiayType DispiayType { get; set; } #endregion --属性 #region 构造函数 /// <summary> /// 构造函数 /// </summary> /// <param name="_spPortName">端口名称(COM1,COM2,COM3...)</param> /// <param name="_spBaudRate">通信波特率(2400,9600....)</param> /// <param name="_spStopBits">停止位</param> /// <param name="_spDataBits">数据位</param> public CustomerDisplay(string _spPortName, int _spBaudRate, string _spStopBits, int _spDataBits) { this.spBaudRate = _spBaudRate; this.spDataBits = _spDataBits; this.spPortName = _spPortName; this.spStopBits = (StopBits)(Enum.Parse(typeof(StopBits), _spStopBits)); } #endregion --构造函数 #region Method #region 公共方法 /// <summary> /// 数据信息展现 /// </summary> /// <param name="data">发送的数据(清屏可以为null或者空)</param> public void DisplayData(string data) { SerialPort serialPort = new SerialPort(); serialPort.PortName = spPortName; serialPort.BaudRate = spBaudRate; serialPort.StopBits = spStopBits; serialPort.DataBits = spDataBits; serialPort.Open(); //先清屏 serialPort.WriteLine(((char)12).ToString()); //指示灯 string str = ((char)27).ToString() + ((char)115).ToString()+((char)(int)this.DispiayType).ToString(); serialPort.WriteLine(str); //发送数据 if (!string.IsNullOrEmpty(data)) { serialPort.WriteLine(((char)27).ToString() + ((char)81).ToString() + ((char)65).ToString() + data + ((char)13).ToString()); } serialPort.Close(); } #endregion --公共方法 #endregion --Method } /// <summary> /// 客显类型 /// </summary> public enum CustomerDispiayType { /// <summary> /// 清屏 /// </summary> Clear, /// <summary> /// 单价 /// </summary> Price, /// <summary> /// 合计 /// </summary> Total, /// <summary> /// 收款 /// </summary> Recive, /// <summary> /// 找零 /// </summary> Change }
调用案例
class Program { static void Main(string[] args) { while (true) { Console.Write("清屏"); CustomerDisplay disliay = new CustomerDisplay("COM2", 9600, StopBits.One, 8); disliay.DispiayType = CustomerDispiayType.Clear; disliay.DisplayData(null); System.Threading.Thread.Sleep(1000); Console.Write("找零"); disliay.DispiayType = CustomerDispiayType.Change; disliay.DisplayData("230.34"); System.Threading.Thread.Sleep(1000); Console.Write("收款"); disliay.DispiayType = CustomerDispiayType.Recive; disliay.DisplayData("10.34"); System.Threading.Thread.Sleep(1000); Console.Write("总计"); disliay.DispiayType = CustomerDispiayType.Total; disliay.DisplayData("99230.34"); System.Threading.Thread.Sleep(1000); Console.Write("单价"); disliay.DispiayType = CustomerDispiayType.Price; disliay.DisplayData("18.34"); System.Threading.Thread.Sleep(2000); } Console.Read(); }
通常情况下指示灯排列号: /* *当 n=0 , 四种字符 全暗。 *当 n=1, “单价”字符 亮,“多谢惠顾”亮,其它三种暗。 *当 n=2, “合计”字符 亮,“多谢惠顾”亮,其它三种暗。 *当 n=3, “收款”字符 亮,“多谢惠顾”亮,其它三种暗。 *当 n=4, “找零”字符 亮,“多谢惠顾”闪烁,其它三种暗 */
转 : https://www.cnblogs.com/flywing/p/8426690.html
https://blog.csdn.net/wybztn/article/details/7240117
转 : https://wenku.baidu.com/view/b64e5e46021ca300a6c30c22590102020740f2fa.html