将数据发送到windows XP上的LPT

Question

我想将数据发送到LPT1上的打印机，并尝试使用this，但CreateFile返回-1 (系统无法从HRESULT0x80070002找到文件specified.Exception )。如何打开LPT1端口并将数据发送到？我在XP和之后的64位win7上尝试这个，因为从我读到的在64位win7中使用LPT是一个小问题，或者我应该说64位的问题：)

因为这是我今年的第一篇文章:祝大家新年快乐。

Answer 1

您可以尝试以下操作。适用于文本模式。

‘'net’显示以下内容：

Share name   Resource                        Remark

-------------------------------------------------------------------------------
IPC$                                         Remote IPC
D$           D:\                             Default share
print$       C:\WINDOWS\system32\spool\drivers
                                             Printer Drivers
wwwroot$     c:\inetpub\wwwroot              Used for file share access to web
C$           C:\                             Default share
ADMIN$       C:\WINDOWS                      Remote Admin
SharedDocs   C:\DOCUMENTS AND SETTINGS\ALL USERS\DOCUMENTS

Printer2     IP_192.168.115.227     Spooled  HP LaserJet 2200 Series PS (MS)
TEST         LPT1:                  Spooled  Microsoft XPS Document Writer
The command completed successfully.

下面是代码

using System;
using System.IO;

namespace SimplePrinting
{
    /// <summary>
    /// Summary description for Class1.
    /// </summary>
    class SimplePrinting
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main(string[] args)
        {
            string printingTaskFileName = Path.GetTempFileName(); // file in %temp%

            System.IO.FileStream printingTaskFile;
            System.IO.StreamWriter printingTaskStream;

            printingTaskFile = new System.IO.FileStream(printingTaskFileName, FileMode.Append);
            printingTaskStream = new System.IO.StreamWriter(printingTaskFile, System.Text.Encoding.Default);

            printingTaskStream.Write("some content here");
            printingTaskStream.Flush();
            printingTaskStream.Close();

            File.Copy(printingTaskFileName, @"\\127.0.0.1\TEST", true); // also can be \\127.0.0.1\PNT5 or smth like that
            File.Delete(printingTaskFileName);
        }
    }
}