Directly sending string to Printer(sequencial or Laser) with Printer Commands

using System;
using System.Drawing;
using System.Drawing.Printing;
//using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.IO;
using System.Text;
using System.Collections;
using System.Data;
namespace DirectPrint
{

public class PrinterHelper
{

private static string enq = Convert.ToChar(5).ToString();
private static string esc = Convert.ToChar(27).ToString();
private static string nul = Convert.ToChar(0).ToString();
private static string rs = Convert.ToChar(30).ToString();
private static string lf = Convert.ToChar(10).ToString();
private static string cr = Convert.ToChar(13).ToString();

// Structure and API declarions:
[StructLayout(LayoutKind.Sequential , CharSet = CharSet.Ansi)]
public class DOCINFOA
{
[MarshalAs(UnmanagedType.LPStr)]
public string pDocName;
[MarshalAs(UnmanagedType.LPStr)]
public string pOutputFile;
[MarshalAs(UnmanagedType.LPStr)]
public string pDataType;
}
[DllImport("winspool.Drv", EntryPoint = "OpenPrinterA", SetLastError = true, CharSet = CharSet.Ansi, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool OpenPrinter([MarshalAs(UnmanagedType.LPStr)] string szPrinter, out IntPtr hPrinter, IntPtr pd);
[DllImport("winspool.Drv", EntryPoint = "ClosePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool ClosePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "StartDocPrinterA", SetLastError = true, CharSet = CharSet.Ansi, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool StartDocPrinter(IntPtr hPrinter, Int32 level, [In, MarshalAs(UnmanagedType.LPStruct)] DOCINFOA di);
[DllImport("winspool.Drv", EntryPoint = "EndDocPrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool EndDocPrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "StartPagePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool StartPagePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "EndPagePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool EndPagePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "WritePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern bool WritePrinter(IntPtr hPrinter, IntPtr pBytes, Int32 dwCount, out Int32 dwWritten);
// SendBytesToPrinter()
// When the function is given a printer name and an unmanaged array
// of bytes, the function sends those bytes to the print queue.
// Returns true on success, false on failure.
public static bool SendBytesToPrinter(string szPrinterName, IntPtr pBytes, Int32 dwCount)
{
Int32 dwError = 0, dwWritten = 0;
IntPtr hPrinter = new IntPtr(0);
DOCINFOA di = new DOCINFOA();
bool bSuccess = false; // Assume failure unless you specifically succeed.
di.pDocName = "IVRCL Document Developed by M sateesh kumar";
di.pDataType = "RAW";
// Open the printer.
if (OpenPrinter(szPrinterName.Normalize(), out hPrinter, IntPtr.Zero))
{
// Start a document.
if (StartDocPrinter(hPrinter, 1, di))
{
// Start a page.
if (StartPagePrinter(hPrinter))
{
// Write your bytes.
bSuccess = WritePrinter(hPrinter, pBytes, dwCount, out dwWritten);
EndPagePrinter(hPrinter);
}
EndDocPrinter(hPrinter);
}
ClosePrinter(hPrinter);
}
// If you did not succeed, GetLastError may give more information
// about why not.
if (bSuccess == false)
{
dwError = Marshal.GetLastWin32Error();
}
return bSuccess;
}
public static bool SendFileToPrinter(string szPrinterName, string szFileName)
{
// Open the file.
FileStream fs = new FileStream(szFileName, FileMode.Open);
// Create a BinaryReader on the file.
BinaryReader br = new BinaryReader(fs);
// Dim an array of bytes big enough to hold the file's contents.
Byte[] bytes = new Byte[fs.Length];
bool bSuccess = false;
// Your unmanaged pointer.
IntPtr pUnmanagedBytes = new IntPtr(0);
int nLength;
nLength = Convert.ToInt32(fs.Length);
// Read the contents of the file into the array.
bytes = br.ReadBytes(nLength);


// Allocate some unmanaged memory for those bytes.
pUnmanagedBytes = Marshal.AllocCoTaskMem(nLength);
// Copy the managed byte array into the unmanaged array.
Marshal.Copy(bytes, 0, pUnmanagedBytes, nLength);
// MessageBox.Show("L'impression est dclenche maintenant!");

// Send the unmanaged bytes to the printer.
bSuccess = SendBytesToPrinter(szPrinterName, pUnmanagedBytes, nLength);
// Free the unmanaged memory that you allocated earlier.
Marshal.FreeCoTaskMem(pUnmanagedBytes);
return bSuccess;
}

public static bool SendStringToPrinter(string szPrinterName, string szString)
{
IntPtr pBytes;
Int32 dwCount;
// How many characters are in the string?
dwCount = szString.Length;
// Assume that the printer is expecting ANSI text, and then convert
// the string to ANSI text.
pBytes = Marshal.StringToCoTaskMemAnsi(szString);


// Send the converted ANSI string to the printer.
bool res = SendBytesToPrinter(szPrinterName, pBytes, dwCount);
Marshal.FreeCoTaskMem(pBytes);
return res;
}

private String OpenCashDrawer()
{
StringBuilder sequence = new StringBuilder();
sequence.Append((char)27);
sequence.Append((char)112);
sequence.Append((char)0);
sequence.Append((char)25);
sequence.Append((char)250);


return sequence.ToString();
}


private String InitializePrinter()
{
StringBuilder sequence = new StringBuilder();
sequence.Append((char)27);
sequence.Append((char)64);


return sequence.ToString();
}
private static String PrintCenterText()
{
//The printer will continue printing at center
StringBuilder sequence = new StringBuilder();
sequence.Append((char)27);
sequence.Append((char)97);
sequence.Append((char)1);


return sequence.ToString();
}
private static String PrintLeftText()
{
//The printer will continue printing at left
StringBuilder sequence = new StringBuilder();
sequence.Append((char)27);
sequence.Append((char)97);
sequence.Append((char)0);


return sequence.ToString();
}
private static String CutPaper()
{
StringBuilder sequence = new StringBuilder();
sequence.Append((char)27);
sequence.Append((char)105);
sequence.Append((char)0);
sequence.Append((char)25);


return sequence.ToString();
}


private static String LineFeed(int pNumLines)
{
StringBuilder sequence = new StringBuilder();
//sequence.Append((char)27);
//sequence.Append((char)100);
// sequence.Append((char)pNumLines);
//

//return sequence.ToString();
for (int i = 0; i < pNumLines; i++)
sequence.Append(lf + cr);
return sequence.ToString();
}
private static String Boldon()
{
StringBuilder sequence = new StringBuilder();
sequence.Append(esc + "E" + nul);
return sequence.ToString();
}
private static String Boldoff()
{
StringBuilder sequence = new StringBuilder();
sequence.Append(nul + esc + "F" + nul);
return sequence.ToString();
}
private static String Italicon()
{
StringBuilder sequence = new StringBuilder();
sequence.Append(esc + "4" + nul);
return sequence.ToString();
}
private static String Italicooff()
{
StringBuilder sequence = new StringBuilder();
sequence.Append(nul + esc + "5" + nul);
return sequence.ToString();
}
private static string newline()
{
return lf + cr;
}
private static String Compress()
{
return esc + "x0" + Convert.ToChar(15).ToString()+nul;
}
private static string Eject()
{
return esc + "EMR";
}
private static string nextpage()
{
return Convert.ToChar(12).ToString();
}
private static string padc(ArrayList strs, int length)
{
StringBuilder sb = new StringBuilder();
foreach (string str in strs)
{
sb.Append(str.PadLeft((length / 2)+str.Length/2,' ').PadRight(length,' '));
sb.Append(newline());
}
return sb.ToString();
}
private static string Reset()
{
return esc + Convert.ToChar(64).ToString() + nul;
}
private static string Drawline(int length)
{
string str = "";
for (int i = 0; i < length; i++)
str += '-';
return str + newline();
}


public static string SendtoPrint(DataSet tableDS, DataSet schemaDS, ArrayList Headers, ArrayList Footer, string PrinterName, int fromPage, int toPage)
{
if (string.IsNullOrEmpty(PrinterName))
{
return "Specify Printername";
}
if ((tableDS == null) || (tableDS.Tables[0].Rows.Count == 0))
{
return "No data to Print";
}
if (tableDS.Tables[0].Columns.Count != schemaDS.Tables[0].Rows.Count)
{
return "Please check the schema table values";
}
// List<SqlParameter> parms = new List<SqlParameter>();
// parms.Add(new SqlParameter("@TableName", tableDS.Tables[0].TableName));
// string str = "";
// foreach (DataColumn dc in tableDS.Tables[0].Columns)
// {
// str += dc.ColumnName + ',';
// }
// str = str.Remove(str.Length - 1, 1);
// parms.Add(new SqlParameter("@Columns", str));

// DataSet schemaDS = new DataSet();
// DataAccessLayer.DBConnection objDBConnection = new OAIIS.DataAccessLayer.DBConnection();
// schemaDS = objDBConnection.DBExecute("SP_GBL_TableSchema", CommandType.StoredProcedure, parms.ToArray(), null);
//SqlDataAdapter da = new SqlDataAdapter(cmd);
//da.Fill(schemaDS);
//-------------------------
StringBuilder sbHeader = new StringBuilder();
StringBuilder sbFooter = new StringBuilder();
StringBuilder sbCols = new System.Text.StringBuilder();
StringBuilder sbRows = new System.Text.StringBuilder();
// Object[] columns;
sbHeader.Append(PrinterHelper.padc(Headers, 136));
sbFooter.Append(PrinterHelper.Drawline(136) + PrinterHelper.padc(Footer, 136));
sbCols.Append(PrinterHelper.Drawline(136));
foreach (DataColumn dc in tableDS.Tables[0].Columns)
{
int padlengh;
int.TryParse(schemaDS.Tables[0].Rows[dc.Ordinal][2].ToString(), out padlengh);
sbCols.Append(dc.ColumnName.PadRight(padlengh, ' '));
sbCols.Append(' ');
}
if (sbCols.Length > 0)
sbCols.Remove(sbCols.Length - 1, 1).Append(PrinterHelper.newline()); // Write the Data Rows
sbCols.Append(PrinterHelper.Drawline(136));
sbRows.Append(PrinterHelper.Boldon() + sbHeader.ToString() + sbCols.ToString() + PrinterHelper.Boldoff());
int printedlinescount = Headers.Count + (sbCols.ToString().Length / 136) + 1;
int pageno = 1;
bool newpageflag = false;
int rowlinecount = 0;
foreach (DataRow dr in schemaDS.Tables[0].Rows)
{
int temp;
int.TryParse(dr[2].ToString(), out temp);
rowlinecount += temp;

}
rowlinecount = rowlinecount / 136 + 1;
foreach (DataRow dr in tableDS.Tables[0].Rows)
{
if ((fromPage != 0) && (pageno > toPage))
break;
if (newpageflag)
{
newpageflag = false;
pageno++;
if ((pageno == 0) || (pageno <= toPage))
{
sbRows.Append(PrinterHelper.Boldon() + sbFooter.ToString() + PrinterHelper.Boldoff());
sbRows.Append(PrinterHelper.nextpage());
sbRows.Append(PrinterHelper.Reset());
sbRows.Append(PrinterHelper.Boldon() + sbHeader.ToString() + sbCols.ToString() + PrinterHelper.Boldoff());
printedlinescount = Headers.Count + (sbCols.ToString().Length / 130) + 1;
}
}
if ((fromPage == 0) || ((pageno >= fromPage) && (pageno <= toPage)))
{
for (int i = 0; i < dr.ItemArray.Length; i++)
{
int padlengh;
int.TryParse(schemaDS.Tables[0].Rows[i][2].ToString(), out padlengh);
string strdatatype = Convert.ToString(schemaDS.Tables[0].Rows[i][1]);
switch (strdatatype)
{
case "datetime":
//sbRows.Append(((DateTime)dr[i]).ToString("dd/MM/yyyy hh:mm:ss tt").PadRight(padlengh, ' '));
//break;
case "date":
sbRows.Append(((DateTime)dr[i]).ToString("dd/MM/yyyy").PadRight(padlengh, ' '));
break;
case "time":
sbRows.Append(((DateTime)dr[i]).ToString("hh:mm:ss tt").PadRight(padlengh, ' '));
break;
case "int":
case "tinyint":
case "smallint":
case "numaric":
case "decimal":
sbRows.Append(dr[i].ToString().PadLeft(padlengh, ' '));
break;
default:
sbRows.Append(dr[i].ToString().PadRight(padlengh, ' '));
break;
}

sbRows.Append(' ');
}
if (sbRows.Length > 0)
sbRows.Remove(sbRows.Length - 1, 1).Append(PrinterHelper.newline());
//printedlinescount += 1;
printedlinescount += rowlinecount;//= (sbRows.Length / 136) + 2;

if (printedlinescount > 64)
{
newpageflag = true;
//pageno++;
//if ((pageno ==0) ||(pageno <=toPage))
//{
//sbRows.Append(PrinterHelper.Boldon() + sbFooter.ToString() + PrinterHelper.Boldoff());
//sbRows.Append(PrinterHelper.nextpage());
//sbRows.Append(PrinterHelper.Reset());
//sbRows.Append(PrinterHelper.Boldon() + sbHeader.ToString() + sbCols.ToString() + PrinterHelper.Boldoff());
//printedlinescount = Headers.Count + (sbCols.ToString().Length / 136) + 1;
//}
}
}
}
sbRows.Append(PrinterHelper.Boldon() + sbFooter.ToString() + PrinterHelper.Boldoff());
sbRows.Append(PrinterHelper.nextpage());
bool result = PrinterHelper.SendStringToPrinter(PrinterName, PrinterHelper.Reset() + PrinterHelper.Compress() + sbRows.ToString());
if (result)
return "Done Please collect the papers";
else
return "Error in Printing";
//PrinterHelper.SendStringToPrinter(@"\\moiz\EPSON LQ-300+II ESC/P2", ((char)27)+"x0"+((char)15) +sbCols.ToString() + "\r\n" + sbRows.ToString());

}

}
}