为什么不能使用通用控件找到我的钱箱？

Question

在几乎相同的方式为this guy was having a problem，我有一个类似的问题...

我cashdrawer通过RJ11连接到PC（我认为它的11反正...）我的打印机连接，也就是一个Partner RP-600 Thermal Printer。

我已经使打印机运行良好，但我无法打开现金抽屉。

基本上我就如何实现这一工作（根据我有限的了解的想法是这样的：

1. 打开打印机
2. 要求打印机
3. 启用打印机
4. 打开钱箱
5. 理赔现金抽屉
6. 启用钱箱
7. 打开抽屉的硬件

我已经试过这许多方面，我得到了以下错误：

OPOS_E_CLOSED = 101，但最常见的
OPOS_E_NOEXIST = 109

如果我将其设置为drawer.Open("rp-600 printer")，我得到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(); 
     } 
    } 
} 

正如你所看到的，我在OpenCashDrawer指定（）设备名称是一样的，因为我在OPOS设置设备名称。

那么，我在做什么错误，这是防止opos找到现金抽屉？

Answer 1

您的屏幕截图显示cashdrawer LDN是“rp-cashdrawer”，但您的代码正在使用“rpd”。

drawer.Open("rpd"); 

你应该配置的LDN被打开设备，如：

drawer.Open("rp-cashdrawer");