Re: How to open cash drawer through receipt printer in c#?
From: Joe (Joe_at_microsoft.com)
Date: 01/19/05
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Date: Wed, 19 Jan 2005 16:20:54 -0500
using System;
using System.IO;
using System.Runtime.InteropServices;
namespace PosigoCleaners
{
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, long 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 );
[DllImport("kernel32.dll", EntryPoint="GetLastError", SetLastError=false,
ExactSpelling=true, CallingConvention=CallingConvention.StdCall)]
public static extern Int32 GetLastError();
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 = "My C#.NET RAW Document";
di.pDataType = "RAW";
if( OpenPrinter( szPrinterName, out hPrinter, 0 ) )
{
if( StartDocPrinter(hPrinter, 1, di) )
{
if( StartPagePrinter(hPrinter) )
{
bSuccess = WritePrinter(hPrinter, pBytes, dwCount, out dwWritten);
EndPagePrinter(hPrinter);
}
EndDocPrinter(hPrinter);
}
ClosePrinter(hPrinter);
}
if( bSuccess == false )
{
dwError = GetLastError();
}
return bSuccess;
}
public static bool SendFileToPrinter( string szPrinterName, string
szFileName )
{
FileStream fs = new FileStream(szFileName, FileMode.Open);
BinaryReader br = new BinaryReader(fs);
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 )
{
IntPtr pBytes;
Int32 dwCount;
dwCount = szString.Length;
pBytes = Marshal.StringToCoTaskMemAnsi(szString);
SendBytesToPrinter(szPrinterName, pBytes, dwCount);
Marshal.FreeCoTaskMem(pBytes);
return true;
}
public static bool OpenCashDrawer1( string szPrinterName)
{
Int32 dwError = 0, dwWritten = 0;
IntPtr hPrinter = new IntPtr(0);
DOCINFOA di = new DOCINFOA();
bool bSuccess = false;
di.pDocName = "OpenDrawer";
di.pDataType = "RAW";
if( OpenPrinter( szPrinterName, out hPrinter, 0 ) )
{
if( StartDocPrinter(hPrinter, 1, di) )
{
if( StartPagePrinter(hPrinter) )
{
int nLength;
byte[] DrawerOpen = new byte[] { 07 };
nLength = DrawerOpen.Length;
IntPtr p = Marshal.AllocCoTaskMem(nLength);
Marshal.Copy(DrawerOpen, 0, p, nLength);
bSuccess = WritePrinter(hPrinter, p, DrawerOpen.Length, out dwWritten);
EndPagePrinter(hPrinter);
Marshal.FreeCoTaskMem(p);
}
EndDocPrinter(hPrinter);
}
ClosePrinter(hPrinter);
}
if( bSuccess == false )
{
dwError = GetLastError();
}
return bSuccess;
}
public static bool FullCut( string szPrinterName)
{
Int32 dwError = 0, dwWritten = 0;
IntPtr hPrinter = new IntPtr(0);
DOCINFOA di = new DOCINFOA();
bool bSuccess = false;
di.pDocName = "FullCut";
di.pDataType = "RAW";
if( OpenPrinter( szPrinterName, out hPrinter, 0 ) )
{
if( StartDocPrinter(hPrinter, 1, di) )
{
if( StartPagePrinter(hPrinter) )
{
int nLength;
byte[] DrawerOpen = new byte[] { 27, 100, 51 };
nLength = DrawerOpen.Length;
IntPtr p = Marshal.AllocCoTaskMem(nLength);
Marshal.Copy(DrawerOpen, 0, p, nLength);
bSuccess = WritePrinter(hPrinter, p, DrawerOpen.Length, out dwWritten);
EndPagePrinter(hPrinter);
Marshal.FreeCoTaskMem(p);
}
EndDocPrinter(hPrinter);
}
ClosePrinter(hPrinter);
}
if( bSuccess == false )
{
dwError = GetLastError();
}
return bSuccess;
}
}
}
forgive the formatting - but be thankful
"c#newbie" <c#newbie@discussions.microsoft.com> wrote in message
news:BE7B01EF-67A7-4B7C-958D-669F8018AB27@microsoft.com...
> How to open cash drawer through receipt printer in c#?
- Next message: James: "Re: Running a .Net WinForms app from network drive etc..."
- Previous message: Tom Krueger [MSFT]: "Re: Splash screen"
- In reply to: c#newbie: "How to open cash drawer through receipt printer in c#?"
- Next in thread: c#newbie: "Re: How to open cash drawer through receipt printer in c#?"
- Reply: c#newbie: "Re: How to open cash drawer through receipt printer in c#?"
- Reply: c#newbie: "Re: How to open cash drawer through receipt printer in c#?"
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