Why does not work RawPrinterHelperClass in persian (farsi)?
What I have tried:
Hi my friends ;
I have a text file in persian language (farsi) alphabet and english alphabets . I use RawPrinterHelper Class to print it directly .
but it dont print in persian language . please help me that it work perfectly in persian (farsi) language .
note : this class do work in alphabet of english language very well .
thank u so much
my Class is :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.Drawing.Printing;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.IO;
public static class RawPrinterHelper
{
public static byte[] arabicEncoding(string text)
{
Encoding ec = Encoding.GetEncoding(864);
byte[] memByte = ec.GetBytes(text);
return memByte;
}
[StructLayout(LayoutKind.Sequential,CharSet = CharSet.Unicode )]
public class DOCINFOA
{
[MarshalAs(UnmanagedType.LPStr, SizeConst = 4)]
public string pDocName;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 4)]
public string pOutputFile;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 4)]
public string pDataType;
}
[DllImport("NativeLib.dll", EntryPoint = "pinvoke_name", SetLastError = true, CharSet = CharSet.Unicode, CallingConvention = CallingConvention.StdCall)]
private static extern void pinvoke_name_ptr(byte[] data);
[DllImport("winspool.Drv", EntryPoint = "OpenPrinterA", SetLastError = true,CharSet = CharSet.Unicode , CallingConvention = CallingConvention.StdCall)]
public static extern bool OpenPrinter([MarshalAs(UnmanagedType.LPStr)] string szPrinter, out IntPtr hPrinter, IntPtr pd);
[DllImport("winspool.Drv", EntryPoint = "ClosePrinter", SetLastError = true, CharSet = CharSet.Unicode, CallingConvention = CallingConvention.StdCall)]
public static extern bool ClosePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "StartDocPrinterA", SetLastError = true, CharSet = CharSet.Unicode, CallingConvention = CallingConvention.StdCall)]
public static extern bool StartDocPrinter(IntPtr hPrinter, Int32 level, [In, MarshalAs(UnmanagedType.LPStruct)] DOCINFOA di);
[DllImport("winspool.Drv", EntryPoint = "EndDocPrinter", SetLastError = true, CharSet = CharSet.Unicode, CallingConvention = CallingConvention.StdCall)]
public static extern bool EndDocPrinter(IntPtr hPrinter );
[DllImport("winspool.Drv", EntryPoint = "StartPagePrinter", SetLastError = true, CharSet = CharSet.Unicode, CallingConvention = CallingConvention.StdCall)]
public static extern bool StartPagePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "EndPagePrinter", SetLastError = true, CharSet = CharSet.Unicode, CallingConvention = CallingConvention.StdCall)]
public static extern bool EndPagePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "WritePrinter", SetLastError = true, CharSet = CharSet.Unicode, CallingConvention = CallingConvention.StdCall)]
public static extern bool WritePrinter(IntPtr hPrinter, IntPtr pBytes, Int32 dwCount, out Int32 dwWritten);
public static bool SendBytesToPrinter( string szPrinterName, IntPtr pBytes, Int32 dwCount)
{
Int32 dwError = 0, dwWritten = 0;
IntPtr hPrinter = new IntPtr();
DOCINFOA di = new DOCINFOA();
bool bSuccess = false;
di.pDocName = "My C#.NET RAW Document";
di.pDataType = "RAW";
if( OpenPrinter( szPrinterName.Normalize(), out hPrinter, IntPtr.Zero ) )
{
if( StartDocPrinter(hPrinter, 1, di) )
{
if( StartPagePrinter(hPrinter) )
{
MessageBox.Show("????? ?? ????? ???? ???? ????? ?? ???? ???? ");
bSuccess = WritePrinter(hPrinter, pBytes, dwCount, out dwWritten);
EndPagePrinter(hPrinter);
}
EndDocPrinter(hPrinter);
}
ClosePrinter(hPrinter);
}
if( bSuccess == false )
{
dwError = Marshal.GetLastWin32Error();
}
return bSuccess;
}
public static bool SendFileToPrinter( string szPrinterName, string szFileName )
{
FileStream fs = new FileStream(szFileName, FileMode.Open);
BinaryReader br = new BinaryReader(fs,Encoding.GetEncoding(864));
Byte[] bytes = new Byte[fs.Length];
bool bSuccess = false;
IntPtr pUnmanagedBytes = new IntPtr(0);
int nLength;
nLength = Convert.ToInt32(fs.Length);
bytes = br.ReadBytes(nLength);
pUnmanagedBytes = Marshal.AllocCoTaskMem(nLength);
Marshal.Copy(bytes, 0, pUnmanagedBytes, nLength);
bSuccess = SendBytesToPrinter(szPrinterName, pUnmanagedBytes, nLength);
Marshal.FreeCoTaskMem(pUnmanagedBytes);
return bSuccess;
}
public static bool SendStringToPrinter( string szPrinterName, string szString )
{
MessageBox.Show("???? ");
IntPtr pBytes;
Int32 dwCount;
dwCount = szString.Length;
pBytes = Marshal.StringToCoTaskMemAnsi(szString);
SendBytesToPrinter(szPrinterName, pBytes, dwCount);
Marshal.FreeCoTaskMem(pBytes);
return true;
}
}