using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Drawing;
using System.Drawing.Printing;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.IO;
using System.ComponentModel;
using System.Data;
using System.Linq;
using System.Text;
using System.Management;
using System.Reflection;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
GetAllPrinterList();
this.textBox1.Attributes.Add(
"onkeypress", "button_click(this,'" + this.Button1.ClientID + "')");
this.lstPrinterList.Attributes.Add(
"onkeypress", "button_click(this,'" + this.Button1.ClientID + "')");
}
private void GetAllPrinterList()
{
//ManagementScope objScope = new ManagementScope(ManagementPath.DefaultPath); //For the local Access
//objScope.Connect();
//SelectQuery selectQuery = new SelectQuery();
//selectQuery.QueryString = "Select * from win32_Printer";
//ManagementObjectSearcher MOS = new ManagementObjectSearcher(objScope, selectQuery);
//ManagementObjectCollection MOC = MOS.Get();
//foreach (ManagementObject mo in MOC)
//{
// lstPrinterList.Items.Add(mo["Name"].ToString());
// //lstPrinterList.Items.Add(new ListItem(mo["Name"].ToString()));
//}
lstPrinterList.Items.Add("\\\\10.32.65.6\\Parcel-Zebra-FDX ZM400");
lstPrinterList.Items.Add("\\\\10.32.65.4\\Singles_Station_Z_Printer");
lstPrinterList.Items.Add("\\\\10.32.65.12\\ZebraZ4M-Packaging");
if (lstPrinterList.Items.Count > 3)
{
lstPrinterList.Items.RemoveAt(5);
lstPrinterList.Items.RemoveAt(4);
lstPrinterList.Items.RemoveAt(3);
}
//LocalPrintServer printServer = new LocalPrintServer();
//string printer;
//printer = LocalPrintServer.DefaultPrintQueue;
//System.Management.ObjectQuery oquery =
// new System.Management.ObjectQuery("SELECT * FROM Win32_Printer");
// System.Management.ManagementObjectSearcher mosearcher =
// new System.Management.ManagementObjectSearcher(oquery);
// System.Management.ManagementObjectCollection moc = mosearcher.Get();
// foreach (ManagementObject mo in moc)
// {
// System.Management.PropertyDataCollection pdc = mo.Properties;
// foreach (System.Management.PropertyData pd in pdc)
// {
// // if ((bool)mo["Network"])
// // {
// lstPrinterList.Items.Add(mo["Name"].ToString());
// // }
// }
// }
//}
// using (var printServer = new PrintServer(string.Format(@"\\{0}", PrinterServerName)))
//{
// foreach (var queue in printServer.GetPrintQueues())
// {
// if (!queue.IsShared)
// {
// continue;
// }
// Debug.WriteLine(queue.Name);
// }
// }
//foreach (string printer in System.Drawing.Printing.PrinterSettings.InstalledPrinters)
//{
//MessageBox.Show(printer);
//System.Web.UI.WebControls.ListBox lstPrinterList = new System.Web.UI.WebControls.ListBox();
//System.Web.UI.WebControls.ListBox lstPrinterList = (System.Web.UI.WebControls.ListBox)Page.FindControl("lstPrinterList");
//lstPrinterList.Text = "Zebra 110PAX4 (203 ;dpi)";
//lstPrinterList.Items.Add(printer.ToString());
//lstPrinterList.Items.Add(new ListItem(printer));
//lstPrinterList.Items.Add(printer);
//System.Web.UI.WebControls.ListBox lstPrinterList = (System.Web.UI.WebControls.ListBox)Page.FindControl("ListBox1");
//Zebra 110PAX4 (203 dpi)
//lstPrinterList.Items.Insert(printer);
//}
}
//private void lstPrinterList_OnClick(object sender, System.EventArgs e)
//{
// // Get the currently selected item in the ListBox.
// string curItem = lstPrinterList.SelectedItem.ToString();
// // Find the string in ListBox2.
// int index = lstPrinterList.DataTextField(curItem);
// //int index = lstPrinterList.FindString(curItem);
// //lstPrinterList.DataTextField(curItem);
// // If the item was not found in ListBox 2 display a message box, otherwise select it in ListBox2.
// if (index == -1)
// MessageBox.Show("Item is not available in ListBox2");
// else
// lstPrinterList.SetSelected(index, true);
//}
//private void button1_Click(object sender, System.EventArgs e)
//{
// string str = File.ReadAllText("lpn.prn");
// str = str.Replace("BOX_TYPE", "boom");
// str = str.Replace("11111111", textBox1.Text);
// File.WriteAllText("lpn.prn", str);
// // Print the file to the printer.
// RawPrinterHelper.SendFileToPrinter("\\\\Zebra-FDX ZM400 200 dpi (ZPL)", "C:\\Users\\Administrator\\Documents\\Visual Studio 2015\\Projects\\WindowsFormsApplication4\\Prn Print\\bin\\Debug\\lpn.prn");
//}
public void button1_Click(object sender, System.EventArgs e)
{
String prnFile = "lpn2.prn";
string s = File.ReadAllText(prnFile);
string printer;
String Printer = lstPrinterList.SelectedItem.ToString();
s = s.Replace("*description*", "snuffles");
s = s.Replace("*barcode*", textBox1.Text);
//File.WriteAllText("PPlpn.prn", s);
//s = "^XA^LH30,30\n^FO20,10^ADN,90,50^AD^FDHello World^FS\n^XZ";
printer = lstPrinterList.SelectedItem.Value;
PrintDialog pd = new PrintDialog();
pd.PrinterSettings = new PrinterSettings();
RawPrinterHelper.SendStringToPrinter(printer, s);
//RawPrinterHelper.SendStringToPrinter(Printer, s);
//Response.Redirect(Request.RawUrl.Replace(Request.Url.Query, "?__VIEWSTATE=%2%3D&ctl00%24MainContent%24textBox1=bp300&ctl00%24MainContent%24lstPrinterList=Shipping+Printer"));
}
protected void textBox1_TextChanged(object sender, EventArgs e)
{
}
}
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 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 = "My C#.NET 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 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;
}
}
Esto es lo que creé en C# y funcionó muy bien. Esta es una aplicación web.
Esto parece prometedor: [PrinterShare] (http://www.printeranywhere.com/) – drudge