直接发送文本文件到网络打印机 [英] Send text file directly to network printer

问题描述

我目前工作的这写一个临时文件发送原始数据到打印机的代码，然后用 File.Copy（）将其发送到打印机。 File.Copy（）支持本地端口，如 LPT1 键，如 \共享打印机\FRONTCOUNTER\LabelPrinter 。

I have currently-working code which sends raw data to a printer by writing a temporary file, then using File.Copy() to send it to the printer. File.Copy() supports both local ports, like LPT1 and shared printers like \\FRONTCOUNTER\LabelPrinter.

不过，现在我试图把它与那直接在网络上的打印机工作： 192.168.2.100 ，我想不出要使用的格式。

However, now I'm trying to get it working with a printer that's directly on the network: 192.168.2.100, and I can't figure out the format to use.

File.Copy(filename, @"LPT1", true); // Works, on the FRONTCOUNTER computer
File.Copy(filename, @"\\FRONTCOUNTER\LabelPrinter", true); // Works from any computer
File.Copy(filename, @"\\192.168.2.100", true); // New printer, Does not work

我知道这是可以从每台计算机的添加打印机 ，但我希望避免 - 自动第二码以上作品在网络上的线路从任何计算机，无需配置。我也知道这是可能的P / Invoke Windows打印后台处理程序，如果这是我唯一的选择，我是否可以，但是这更多的代码开销比我想有。

I know it's possible to "Add a printer" from each computer, but I'm hoping to avoid that - the second line of code above works from any computer on the network automatically, with no configuration required. I also know it's possible to P/Invoke the windows print spooler, and if that's my only option I may take it, but that's much more code overhead than I'd like to have.

在理想情况下，会有人要么办法让 File.Copy（）工作或类似的C＃声明，将接受网络IP。

Ideally, someone will have either a way to make File.Copy() work or a similar C# statement which will accept a network IP.

推荐答案

您可以使用套接字和数据直接发送到该IP地址。应该几乎是相同的 File.Copy 。我只是想出来，那工作。

You can use sockets and send the data straight to that IP address. Should pretty much be the same as File.Copy. I just tried it out and that worked.

我刚刚给一些文字，但这里是我用

I just sent some text but here is the code that I used

Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
clientSocket.NoDelay = true;

IPAddress ip = IPAddress.Parse("192.168.192.6");
IPEndPoint ipep = new IPEndPoint(ip, 9100);
clientSocket.Connect(ipep);

byte[] fileBytes = File.ReadAllBytes("test.txt");

clientSocket.Send(fileBytes);
clientSocket.Close();

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