Let more people know how to operate a Zebra barcode printer in C #

Here is the Barcode printing program I developed for barcode printing
Using System;
Using System.IO;
Using System.Collections.Generic;
Using System.Text;

Namespace Barcode
{
/* Barcode Printing Command Description
^XA//Barcode Printing Instructions Start
^MD30//sets the color depth of the ribbon, ranging from 30 to 30
^lh60,10//Set margin of barcode paper
^fo20,10//Set barcode position in upper-left corner
^acn,18,10//Set Font
^by1.4,3,50//Set bar code style. 1.4 is the bar code scaling level, 3 is the bar code in the proportion of thick and thin, 50 is the bar code height
^bc,,y,n//Print code128 instructions
^FD12345678^FS//Set the content to be printed, ^FD is the bar code content to be printed ^fs indicates a newline
^XZ//Barcode Print instruction End
*///The above instruction will print 12345678 CODE128 barcode
public class Barcodeprint
{
[System.Runtime.InteropServices.StructLayout (System.Runtime.InteropServices.LayoutKind.Sequential)]
Private struct OVERLAPPED
{
int Internal;
int Internalhigh;
int Offset;
int Offsethigh;
int hevent;
}
[System.Runtime.InteropServices.DllImport ("kernel32.dll")]
private static extern int CreateFile (string lpfilename, uint dwdesiredaccess, int dwsharemode, int lpsecurityattributes, I NT dwCreationDisposition, int dwflagsandattributes, int htemplatefile);
[System.Runtime.InteropServices.DllImport ("kernel32.dll")]
private static extern bool WriteFile (int hfile, byte[] lpbuffer, int nnumberofbytestowrite, out int lpnumberofbyteswritten , out overlapped lpoverlapped);
[System.Runtime.InteropServices.DllImport ("kernel32.dll")]
private static extern bool CloseHandle (int hobject);
private int ihandle;
public bool Open ()
{
Ihandle = CreateFile ("LPT1:", (UINT) fileaccess.readwrite, 0, 0, (int) filemode.open, 0, 0);
if (Ihandle!=-1)
{
return true;
}
Else
{
return false;
}
}
public bool Write (string Mystring)
{
if (Ihandle!=-1)
{
int i;
Overlapped x;
byte[] MyByte = System.Text.Encoding.Default.GetBytes (Mystring);
Return WriteFile (Ihandle, MyByte, MyByte. Length, out I, out x);
}
Else
{
throw new Exception ("LPT1 Port not open!");
}
}
public bool Close ()
{
return CloseHandle (Ihandle);
}
}
}


How to print Chinese see below: Using the Getfonthex function
C # prototype used by the function:
[DllImport ("Fnthex32.dll")]
public static extern int Getfonthex (
String Barcodetext,
String FontName,
String FileName,
int Orient,
                               int height,