Silverlight 5 では、強化されたセキュリティをオンにすると、未加工のテキストを印刷できます。これが私がしたことです:
private void Button_Click(object sender, RoutedEventArgs e)
{
StringBuilder label = new StringBuilder();
label.AppendLine("^XA^MCA^PR8^XZ");
label.AppendLine("^XA");
label.AppendLine("^DFCTN^FS");
label.AppendLine("^LH110,0^FS");
label.Append("^FO0,60^A0,30,20^FB250,1,0,C,0^FD");
label.Append(CategoryTextBox.Text.TrimEnd());
label.AppendLine("^FS");
label.AppendLine("^FO5,120^A0,40,30^FB250,1,0,C,0^FR^FN1^FS");
label.AppendLine("^XZ");
label.AppendLine("^XA");
label.AppendLine("^XFCTN^FS");
label.Append("^FO10,100");
label.Append("^B3N,N,40,Y^FD");
label.Append(LicensePlateTextBox.Text.TrimEnd());
label.AppendLine("^FS");
label.AppendLine("^XZ");
bool result = RawPrinterHelper.SendStringToPrinter("Zebra Label Printer", label.ToString());
if (!result)
{
MessageBox.Show("Error Returned From Print Spool. Check Setup.");
}
}
RawPrintHelper クラス:
using System;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
namespace TestPrinting
{
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 = "Document";
di.pDataType = "RAW";
// Open the printer.
if (OpenPrinter(szPrinterName, 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 SendStringToPrinter(string szPrinterName, string pDoc)
{
MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(pDoc));
byte[] rawData = new byte[stream.Length];
stream.Read(rawData, 0, (int)stream.Length);
GCHandle rawDataHandle = GCHandle.Alloc(rawData, GCHandleType.Pinned);
IntPtr pointer = rawDataHandle.AddrOfPinnedObject();
return SendBytesToPrinter(szPrinterName, pointer, rawData.Length);
}
}
}