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I have received a demand to implement a program with the ELGIN printer, version I9. This program will be similar to those used in shops, markets where you have to print that coupon with the company’s logo.
I can already print texts, bar code and so on... but I’m at the impasse to print the logo together on the coupon.
So would anyone have any idea how I can modify this code so I can also print the image on the coupon?
So far my code is this:
public class RawPrinterHelper
{
// 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)]
public 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)]
public static extern bool ClosePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "StartDocPrinterA", SetLastError = true, CharSet = CharSet.Ansi, ExactSpelling = true, 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, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
public static extern bool EndDocPrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "StartPagePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
public static extern bool StartPagePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "EndPagePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
public static extern bool EndPagePrinter(IntPtr hPrinter);
[DllImport("winspool.Drv", EntryPoint = "WritePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
public 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 printer 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 = "i9 RAW Document";
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);
// 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 SendBytesToPrinter(string szPrinterName, byte[] data)
{
bool retval = false;
IntPtr pUnmanagedBytes = Marshal.AllocCoTaskMem(data.Length); // Allocate unmanaged memory
Marshal.Copy(data, 0, pUnmanagedBytes, data.Length); // copy bytes into unmanaged memory
retval = SendBytesToPrinter(szPrinterName, pUnmanagedBytes, data.Length);//Send bytes to printer
Marshal.FreeCoTaskMem(pUnmanagedBytes); // Free the allocated unmanaged memory
return retval;
}
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.
SendBytesToPrinter(szPrinterName, pBytes, dwCount);
Marshal.FreeCoTaskMem(pBytes);
return true;
}
//if you want a wrapper function for you strings :
public static bool SendASCiiToPrinter(string szPrinterName, string data)
{
bool retval = false;
//if you are using UTF-8 and get wrong values in qrcode printing, you must use ASCII instead.
//retval = SendBytesToPrinter(szPrinterName, Encoding.UTF8.GetBytes(data));
retval = SendBytesToPrinter(szPrinterName, Encoding.ASCII.GetBytes(data));
return retval;
}
}
and
public class EscPos
{
//if you want to use decimal values in your methods.
public byte[] intTobyte(int[] data)
{
byte[] byteData = data.Select(x => (byte)x).ToArray(); // coonvert int array to byte
return byteData;
}
//initialize printer
//ESC @
public void initializePrinter(String szPrinterName)
{
int[] command = { 27, 64 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(command));
}
//print text
public bool printText(String szPrinterName, String data)
{
//for more character sets: http://www.ascii-codes.com/
//for another charsets:
//Encoding ascii = Encoding.GetEncoding("ascii");
//Encoding windows = Encoding.GetEncoding("Windows-1252");
//you must use this encoding for brazilian portuguese special characters: ^,~,ç,á...
Encoding brazilian = Encoding.GetEncoding("IBM860");
byte[] byteData = brazilian.GetBytes(data);
RawPrinterHelper.SendBytesToPrinter(szPrinterName, byteData);
return true;
}
// Print Position Commands
//ESC a n
public bool SelectJustification(string szPrinterName, int justification_code)
{
//0= default
//48 left
//1,49 centering
//2,50 right
int[] align = { 27, 97, justification_code };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(align));
return true;
}
//Character Control Commands
//use this mode to cancel another mode.
public bool normalModeText(string szPrinterName)
{
int[] normal = { 27, 33, 0 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(normal));
return true;
}
//Character font A (12 × 24) selected.
public bool charFontAText(String szPrinterName)
{
int[] fontA = { 27, 33, 0 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(fontA));
return true;
}
//Character font B (9 × 17) selected.
public bool charFontBText(String szPrinterName)
{
int[] fontB = { 27, 33, 1 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(fontB));
return true;
}
//Emphasized mode is turned on
public bool emphasizedModeText(string szPrinterName)
{
int[] mode = { 27, 33, 8 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(mode));
return true;
}
//Double-height selected.
public bool doubleHeightText(string szPrinterName)
{
int[] height = { 27, 33, 16 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(height));
return true;
}
//Double-width selected.
public bool DoubleWidthText(string szPrinterName)
{
int[] width = { 27, 33, 32 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(width));
return true;
}
//Underline mode is turned on
public bool UnderlineModeText(string szPrinterName)
{
int[] underline = { 27, 33, 128 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(underline));
return true;
}
//print and Line feed
public bool lineFeed(String szPrinterName, int numLines)
{
// fucntion LF
int[] lf = { 10 };
for (int i = 1; i <= numLines; i++)
{
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(lf));
}
return true;
}
//Generate pulse in Real Time
public bool drawerKick(String szPrinterName)
{
// function DLE DC4 fn m t （fn=1）
int[] pulse = { 27, 112, 0, 100, 200 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(pulse));
return true;
}
//execute test print
public bool testPrint(String szPrinterName)
{
//function GS ( A pL pH n m
int[] test = { 29, 40, 65, 2, 0, 0, 2 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(test));
return true;
}
//Select an international character set
public bool charSet(String szPrinterName, int language)
{
//function ESC R n
//0-USA
//12-Latin America
//
int[] char_set = { 27, 82, language };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(char_set));
return true;
}
//select character code table
public bool codeTable(String szPrinterName, int language)
{
//function Esc t n
// 0 - PC437 (USA: Standard Europe)]
// 40 [ISO8859-15 (Latin9)]
// 3 [PC860 (Portuguese)]
int[] code = { 27, 116, language };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(code));
return true;
}
//Select cut mode and cut paper
public bool CutPaper(String szPrinterName)
{
//hex 1D 56 m, m =0,1,48,49
int[] cut = { 29, 86, 0 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(cut));
return true;
}
//activate printer buzzer
public bool buzzer(String szPrinterName)
{
//hex data = "1b 28 41 05 00 61 64 03 0a 0a";
int[] buzzer = { 27, 40, 65, 5, 0, 97, 100, 3, 10, 10 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(buzzer));
// RawPrinterHelper.SendASCiiToPrinter(szPrinterName, data);
return true;
}
//*************************** barcode commands **********************************
//GS h n - sets bar the height of bar code to n dots.
public bool barcode_height(string szPrinterName, int range = 162) // default = 162
{
//range 1 ≤ n ≤ 255
int[] height = { 29, 104, range };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(height));
return true;
}
// GS w n Set bar code width
public bool barcode_width(string szPrinterName, int range = 3)
{
//range = 2 ≤ n ≤ 6
int[] width = { 29, 119, range };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(width));
return true;
}
//GS f n Select a font for the HRI characters when printing a bar code.
public bool barcodeHRI_chars(string szPrinterName, int font_code = 0)
{ //default 0
//[Range] n = 0, 1, 48, 49
int[] hri = { 29, 102, font_code };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(hri));
return true;
}
//GS H n Select print position of HRI characters
public bool barcodeHRIPostion(string szPrinterName, int position_code = 1)
{ //default = 0
//[Range] 0 ≤ n ≤ 3, 48 ≤ n ≤ 51
int[] print_position = { 29, 72, position_code };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(print_position));
return true;
}
//GS k Print barcode
//<Function A>
public bool printBarcode(string szPrinterName, string data, int type = 2)
{ //for this example 2 = JAN/EAN13
int[] barcode = { 29, 107, type };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(barcode));
RawPrinterHelper.SendStringToPrinter(szPrinterName, data);
int[] nul = { 0 }; // null char at the end.
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(nul));
return true;
}
//GS k Print Barcode
// <Function B>
public bool printBarcodeB(String szPrinterName, string data, int type = 73)
{ //for this example 73 = CODE128
int size = (int)data.Length; // the number of bytes of bar code data
int[] barcode = { 29, 107, type, size };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(barcode));
RawPrinterHelper.SendStringToPrinter(szPrinterName, data);
return true;
}
//*************************** barcode commands **********************************
//function to print Qrcode
public bool printQrcode(String Strdata, String szPrinterName)
{
int length = Strdata.Length + 3; // string size + 3
//int length = Strdata.Length;
byte length_low_byte = 0, length_high_byte = 0;
length_low_byte = (byte)(length & 0xff);//low byte used in function 180
length_high_byte = (byte)((length >> 8) & 0xff);//high byte in function 180
//if you don't want to use shift operator:
//int length_low_byte = length % 256;
//int length_high_byte = length / 256;
initializePrinter(szPrinterName);
//<Function ESC a n> Select justification
int[] escAn = { 27, 97, 0 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(escAn));
//<Function GS L> Set left margin
int[] fGsl = { 29, 76, 0, 0 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(fGsl));
//<Function 165> GS ( k p L p H cn fn n (cn = 49,fn = 65) QR Code: Select the model
int[] f165 = { 29, 40, 107, 4, 0, 49, 65, 50, 0 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(f165));
//<Function 167> GS ( k pL pH cn fn n (cn = 49, fn = 67) QR Code: Set the size of module
int[] f167 = { 29, 40, 107, 3, 0, 49, 67, 4 }; // size of qrcode: 1-16
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(f167));
//<Function 169> GS ( k pL pH cn fn n (cn = 49, fn = 69) QR Code: Select the error correction level
int[] f169 = { 29, 40, 107, 3, 0, 49, 69, 48 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(f169));
//<Function 180> GS ( k pL pH cn fn m d1…dk (cn = 49, fn = 80) QR Code: Store the data in the symbol storage area
//pL and pH are the low- and high-order bytes of a 16-bit integer value that specifies the length in bytes of the following data
int[] f180 = { 29, 40, 107, length_low_byte, length_high_byte, 49, 80, 48 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(f180));
//send string/url to printer
//RawPrinterHelper.SendASCiiToPrinter(szPrinterName, Strdata);
RawPrinterHelper.SendStringToPrinter(szPrinterName, Strdata);
//<Function 181> GS ( k pL pH cn fn m (cn = 49, fn = 81) QR Code: Print the symbol data in the symbol storage area
int[] f181 = { 29, 40, 107, 3, 0, 49, 81, 48 };
RawPrinterHelper.SendBytesToPrinter(szPrinterName, intTobyte(f181));
//
return true;
}
}
Already tried to convert the image to binary and send to printer to see in what?
– Lodi
I managed to run some tests here, but the image is printing with not very good quality
– joab