为什么 opos 无法使用常用控件找到我的钱箱？

Question

与this guy was having a problem 大致相同，我遇到了类似的问题...

我的钱箱通过一个 RJ11（我认为它是 11...）连接到我的打印机，这是一个 Partner RP-600 Thermal Printer。

我的打印机工作正常，但我无法打开钱箱。

基本上我对这应该如何工作的想法（基于我有限的理解是这样的：

1. 打开打印机
2. 索赔打印机
3. 启用打印机
4. 打开钱箱
5. 领取现金抽屉
6. 启用钱箱
7. 打开硬件抽屉

我尝试了多种方法，但出现以下错误：

OPOS_E_CLOSED = 101，但最常见
OPOS_E_NOEXIST = 109

如果我将它设置为drawer.Open("rp-600 printer")，我会得到OPOS_E_ILLEGAL = 106

我的代码如下：

    using OPOSCONSTANTSLib;
    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;
    using OposPOSPrinter_CCO;
    using OposCashDrawer_CCO;

    namespace PosPrinterTest
    {
        public partial class Form1 : Form
        {
        private OPOSPOSPrinterClass printer = null;
        private OPOSCashDrawerClass drawer = null;
        public Form1()
        {
            InitializeComponent();

            printer = new OPOSPOSPrinterClass();
            drawer = new OPOSCashDrawerClass();

            _IOPOSPOSPrinterEvents_StatusUpdateEventEventHandler SUEH =
                new _IOPOSPOSPrinterEvents_StatusUpdateEventEventHandler(
                    PrinterStatusUpdateHandler);
            printer.StatusUpdateEvent += SUEH;

            _IOPOSCashDrawerEvents_StatusUpdateEventEventHandler DSUEH = new _IOPOSCashDrawerEvents_StatusUpdateEventEventHandler(CashDrawerStatusUpdateHandler);
            drawer.StatusUpdateEvent += DSUEH;
        }

        private void AddList(object listline)
        {
            listBox1.Items.Add(listline);
            listBox1.SelectedIndex = listBox1.Items.Count - 1;
        }

        private void OpenCashDrawer()
        {
            AddList("+Open drawer");

            int Result = drawer.Open("rpd");
            AddList(String.Format("  1-Open drawer: RC = {0}", Result));
            Result = drawer.ClaimDevice(1000);
            AddList(String.Format("  2-Claim drawer: RC = {0}", Result));
            drawer.DeviceEnabled = true;
            Result = drawer.ResultCode;
            AddList(String.Format("  3-Enable drawer: RC = {0}", Result));
            Result = drawer.OpenDrawer();
            AddList(String.Format("  4-Open drawer: RC = {0}", Result));

            AddList(String.Format("-Open drawer: {0}", ((Result == (int)OPOS_Constants.OPOS_SUCCESS) ? "Succeeded" : "Failed")));
            AddList(String.Empty);
        }

        private void CloseCashDrawer()
        {
            AddList("+Close drawer");

            int Result = drawer.ReleaseDevice();
            AddList(String.Format("  Release drawer: RC = {0}", Result));
            AddList("-Release drawer: " + ((Result == (int)OPOS_Constants.OPOS_SUCCESS) ? "Succeeded" : "Failed"));

            Result = drawer.Close();
            AddList(String.Format("  Close drawer: RC = {0}", Result));
            AddList("-Close drawer: " + ((Result == (int)OPOS_Constants.OPOS_SUCCESS) ? "Succeeded" : "Failed"));
            AddList(String.Empty);
        }

        private void Print()
        {
            AddList("+Print");

            int Result = printer.PrintNormal(2, "\x1B|cA\x1B|2COPOS POSPrinter\x1B|1C\nvia Microsoft.NET\n\n");

            AddList(String.Format("  Print: BC = {0}", Result));
            AddList(String.Format("-Print: {0}", ((Result == (int)OPOS_Constants.OPOS_SUCCESS) ? "Succeeded" : "Failed")));

            Result = printer.CutPaper(100);
            AddList(String.Format("  Cut: BC = {0}", Result));
            AddList(String.Format("-Cut: {0}", ((Result == (int)OPOS_Constants.OPOS_SUCCESS) ? "Succeeded" : "Failed")));
            AddList(String.Empty);
        }

        private void OpenPrinter()
        {
            AddList("+Open printer");

            int Result = printer.Open("rp-600 printer");
            AddList(String.Format("  Open: RC = {0}", Result));

            if (Result == (int)OPOS_Constants.OPOS_SUCCESS)
            {
                Result = printer.ClaimDevice(1000);
                AddList(String.Format("  Claim printer: RC = {0}", Result));

                if (Result == (int)OPOS_Constants.OPOS_SUCCESS)
                {
                    printer.DeviceEnabled = true;
                    Result = printer.ResultCode;
                    AddList(String.Format("  Enable printer: RC = {0}>", Result));
                }
            }
            AddList(String.Format("-Open: {0}", ((Result == (int)OPOS_Constants.OPOS_SUCCESS) ? "Succeeded" : "Failed")));
            AddList(String.Empty);
        }

        private void ClosePrinter()
        {
            AddList("+Close printer");

            int Result = printer.ReleaseDevice();
            AddList(String.Format("  Release printer: RC = {0}", Result));
            AddList("-Release printer: " + ((Result == (int)OPOS_Constants.OPOS_SUCCESS) ? "Succeeded" : "Failed"));

            Result = printer.Close();
            AddList(String.Format("  Close printer: RC = {0}", Result));
            AddList("-Close printer: " + ((Result == (int)OPOS_Constants.OPOS_SUCCESS) ? "Succeeded" : "Failed"));
            AddList(String.Empty);
        }

        private void PrinterStatusUpdateHandler(int nStatus)
        {
            AddList("  P StatusUpdate: " + nStatus);
        }

        private void CashDrawerStatusUpdateHandler(int nStatus)
        {
            AddList(String.Format("  CD Status Update: {0}", nStatus));
        }

        private void btnTender_Click_1(object sender, EventArgs e)
        {
            //OpenPrinter();
            //Print();
            //ClosePrinter();

            OpenCashDrawer();
            CloseCashDrawer();
        }
    }
}

如您所见，我在 OpenCashDrawer() 中指定的设备名称与我在 opos 中设置的设备名称相同。

那么我做错了什么导致 opos 无法找到钱箱？

Answer 1

您的屏幕截图显示现金抽屉 LDN 是“rp-cashdrawer”，但您的代码使用的是“rpd”。

drawer.Open("rpd");

您应该使用已配置的 LDN 打开设备，例如：

drawer.Open("rp-cashdrawer");