How to print label on network shared printer in ASP.Net

[peng]

Hi,

I am development a project using C#.Net. Inside application, it needs to
print labels on different Zebra label printers on the network. I used a shell
script, but it only worked on the server machine locally. Anybody knows how
to do it?

Thanks,
Peng

[Brian Daddino]

Can you please send me the code as well?

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[Jamon Reval]

Would you please send me your code as well?
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[Matt Weber]

Hi Paul,

It looks like you are getting blasted. Any chance you are still sending
the sample? I would appreciate it!
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[Anirudha Gandhe]

Hi Paul,
Can you please send me the sample code?

Thanks,
Anirudha
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[david de la ysla]

Paul;

I know everyone seems to be asking the same question. Me too. Can you
send me the code.
Thanks

David

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[Kent Foss]

Can you also forward this code example to me as well, it seems to be
very popular, and would save me countless hours of trial and error.
Thank you,
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[Gary Besta]

Here is some sample c# code to print directly to a ZPL or EPL printer

using System;
using System.IO;
using System.Runtime. InteropServices ;

namespace CourierLib
{
/// <summary>
/// Summary description for ZPLPrint.
/// </summary>
public class ZPLPrint
{
public readonly int GENERIC_WRITE = 1073741824;
public readonly int OPEN_EXISTING = 3;
public readonly int FILE_SHARE_WRIT E = 2;
public string LPTPORT;
[DllImport("kern el32.dll", SetLastError=tr ue)]
public static extern IntPtr CreateFile(
string lpFileName,
EFileAccess dwDesiredAccess ,
EFileShare dwShareMode,
IntPtr lpSecurityAttri butes,
ECreationDispos ition dwCreationDispo sition,
EFileAttributes dwFlagsAndAttri butes,
IntPtr hTemplateFile);
[System.Runtime. InteropServices .DllImport("ker nel32",
EntryPoint="Clo seHan
dle")]
public static extern int CloseHandle(int hObject);
int retval;
[StructLayout(La youtKind.Sequen tial)]
public struct SECURITY_ATTRIB UTES
{
private int nLength;
private int lpSecurityDescr iptor;
private int bInheritHandle;
}
[Flags]
public enum EFileAccess : uint
{
GenericRead = 0x80000000,
GenericWrite = 0x40000000,
GenericExecute = 0x20000000,
GenericAll = 0x10000000,
}

[Flags]
public enum EFileShare : uint
{
None = 0x00000000,
Read = 0x00000001,
Write = 0x00000002,
Delete = 0x00000004,
}

public enum ECreationDispos ition : uint
{
New = 1,
CreateAlways = 2,
OpenExisting = 3,
OpenAlways = 4,
TruncateExistin g = 5,
}

[Flags]
public enum EFileAttributes : uint
{
Readonly = 0x00000001,
Hidden = 0x00000002,
System = 0x00000004,
Directory = 0x00000010,
Archive = 0x00000020,
Device = 0x00000040,
Normal = 0x00000080,
Temporary = 0x00000100,
SparseFile = 0x00000200,
ReparsePoint = 0x00000400,
Compressed = 0x00000800,
Offline= 0x00001000,
NotContentIndex ed = 0x00002000,
Encrypted = 0x00004000,
Write_Through = 0x80000000,
Overlapped = 0x40000000,
NoBuffering = 0x20000000,
RandomAccess = 0x10000000,
SequentialScan = 0x08000000,
DeleteOnClose = 0x04000000,
BackupSemantics = 0x02000000,
PosixSemantics = 0x01000000,
OpenReparsePoin t = 0x00200000,
OpenNoRecall = 0x00100000,
FirstPipeInstan ce = 0x00080000
}

public ZPLPrint()
{
//
// TODO: Add constructor logic here
//
}
public void print(string strPrnPath, string sText)
{
FileStream outFile;
IntPtr hPortP;
int hPort;
LPTPORT = strPrnPath;
hPortP = CreateFile(LPTP ORT, EFileAccess.Gen ericWrite,
EFileShare.Writ e,
IntPtr.Zero, ECreationDispos ition.OpenExist ing, EFileAttributes .Normal,
IntP
tr.Zero);
hPort = (int)hPortP;
outFile = new FileStream(hPor tP, FileAccess.Writ e, false);
StreamWriter fileWriter = new StreamWriter(ou tFile);
StreamReader fileReader = new
StreamReader("H :\\VSNet\\Couri erLib\\Parcel
ForceLabelDef.t xt");
fileWriter.Writ e("^XA^FO50,50^ A030,30^FD " + sText + "^FS");
fileWriter.Writ e(Formatting.Ch r(34));
fileWriter.Writ e("^FO50,100^A0 30,30^FD " + sText + "^FS^XZ");
fileWriter.Writ e(Formatting.Ch r(13));
fileWriter.Writ e(Formatting.Ch r(10));
fileWriter.Flus h();
fileWriter.Clos e();
outFile.Close() ;
retval = CloseHandle(hPo rt);

}
}
}
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[Mark Villahermosa]

Hi Guyz,

after 2 days of finding a solution with out risking the vunerability of
the server. I found the ultimate solution, for me that is, What i did is
to create an aspx page where when the user will click on the button it
will download the EPL file. From there i created a .bat file that
commands it to print the opened file. I set the .bat file as the default
program to open any .epl file.

It works perfectly, whether your in an intranet or internet. I works
because the printer is now in the client side.

MarkV

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[Mark Rae [MVP]]

"Mark Villahermosa" <ma************ **@gmail.comwro te in message
news:%2******** *******@TK2MSFT NGP02.phx.gbl.. .

Hi [Guyz] Guys,

after 2 days of finding a solution with out risking the vunerability of
the server. I found the ultimate solution, for me that is, What i did is
to create an aspx page where when the user will click on the button it
will download the EPL file. From there i created a .bat file that
commands it to print the opened file. I set the .bat file as the default
program to open any .epl file.

It works perfectly, whether [your] you're in an intranet or internet.
[i] It works because the printer is now in the client side.

How did you persuade an ASP.NET app to modify the default program for .epl
files on a machine which is connected over the Internet...?
--
Mark Rae
ASP.NET MVP
http://www.markrae.net

[Mark Villahermosa]

the .bat file is on the client side. so its only on the client side pc
you have to configure the .epl file to be opened by the .bat file. you
dont have to configure anything on the server since its just like
downloading any file on the server. Its the way the file is handled on
the client side the you have to configure.

MarkV

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