C#POS快速收据打印 [英] C# POS fast receipt printing
问题描述
我想打印我的POS应用程序的收据(Winform C#) 我的第一个尝试是使用Crystal Report，但是当有许多客户排队时，这还不够快，甚至有些客户都会下线. 所以我有想法在DOS模式下打印.我创建一个虚拟文件并将其发送到PRN. 它运行良好，足够快，但是我想了一下.还有其他更好的方法吗?我的意思是不是不是先创建一个虚拟文件，而是从C#本身逐行打印? 当然一定要快.
I'd like to print the receipt of my POS application (Winform C#) My first attempt is using crystal report, but it's no fast enough when there're many customers in line, even some of them will leave the line. So I have idea to print in DOS mode. I create a dummy file and send it to PRN. It's working well, fast enough but then I have a thought.. Is there any other better way to do? I mean it's not by creating a dummy file first, but print line by line from C# itself? of course it must be fast.
先谢谢了.
推荐答案
See my answer here: print on dot matrix printer in .net
无需创建中间文件并将其发送到PRN；只需添加 Generic/Text Only 打印机，然后打印到该驱动程序即可.为此，请在C#中打开指向"PRN"或"LPT1"的文件句柄，然后可以根据通过打开"PRN"或"LPT1"获得的文件句柄直接打印到该文件句柄.
No need to create an intermediary file and send it to PRN; just add a Generic / Text Only printer, and then print to that driver. To do that, open a file handle to "PRN" or "LPT1" in C#, then you can directly print to it based on the file handle you obtained from opening "PRN" or "LPT1"
更新
此处的代码可能会帮助您:在C#中打印到LPT1
Code here might help you: Printing to LPT1 in C#
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