用于.Net打印格式的POS-不能使用转义符(char)27

问题描述

我想出了如何在POS打印机上打印基本文本，但是我想不出如何使转义符起作用(粗体，文本对齐等).现在，我仅在使用Microsoft PosPrinter Simulator进行测试.

I figured out how to print basic text to our POS printer, but I can't figure out how to get the escape characters to work (for bold, text alignment, etc). For now I'm just testing with the Microsoft PosPrinter Simulator.

这就是我正在尝试的

_printer.PrintNormal(PrinterStation.Receipt, (char)27 + "|bC" + printText + (char)13 + (char)10);

我希望将我的printText打印为粗体，然后换行.当我取出(char)27 + "|bC"时，它可以正常工作.

I'd expect that to print my printText in bold followed by a line break. When I take out (char)27 + "|bC" then it works fine.

此处是转义代码的文档

我得到的错误是

我尝试了很多变化，但似乎无法将其包裹住.

I tried a bunch of variations but can't seem to wrap my head around it.

修改.这是堆栈跟踪.

   at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)
   at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
   at System.Int32.Parse(String s, IFormatProvider provider)
   at Microsoft.PointOfService.DeviceSimulators.PosPrinterSimulatorWindow.ProcessEscapes(String str)
   at Microsoft.PointOfService.DeviceSimulators.PosPrinterSimulatorWindow.DisplayText(String str)
   at Microsoft.PointOfService.DeviceSimulators.PosPrinterSimulator.PrintNormalImpl(PrinterStation station, PrinterState printerState, String data)
   at Microsoft.PointOfService.BaseServiceObjects.PosPrinterBase.OutputRequestHandler(OutputRequest Request)
   at Microsoft.PointOfService.Internal.PosCommonInternal.ProcessOutputRequest(OutputRequest request, Boolean asyncOperation)
   at Microsoft.PointOfService.BaseServiceObjects.PosPrinterBase.ProcessRequest(PrintOperation operation)
   at Microsoft.PointOfService.BaseServiceObjects.PosPrinterBase.PrintNormal(PrinterStation station, String data)
   at MyProjectNamespace) in MyFile.cs:line 74

推荐答案

您好，我刚刚找到了这个答案，这对我有用.试试这个.

Hi just found out this answer and this works for me. try this one.

string Bold = System.Text.ASCIIEncoding.ASCII.GetString(new byte[] { 27, (byte)'|', (byte)'b', (byte)'C' });

或者您可以简单地声明以下内容:

or You can simply declare this:

 string ESC = System.Text.ASCIIEncoding.ASCII.GetString(new byte[] {27});

然后以您的格式或类似这样的文字使用它:

then use it in your format or text like this:

ESC +"| cA"-这是居中的. ESC +"| bC"-粗体.

ESC + "|cA" -- this is for center. ESC + "|bC" -- for bold.

ESC +"| bC" +"hello world"-这将使字符串加粗.

ESC + "|bC" + "hello world" -- this will bold the string.

这篇关于用于.Net打印格式的POS-不能使用转义符(char)27的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！