/// <summary>
/// Get the PrintQueue from the PrinterName
/// </summary>
/// <param name="printerName"></param>
/// <returns></returns>
PrintQueue FindPrintQueue(string printerName)
{
EnumeratedPrintQueueTypes[] flag = new EnumeratedPrintQueueTypes[] { EnumeratedPrintQueueTypes.Local, EnumeratedPrintQueueTypes.Connections };
PrintQueueIndexedProperty[] pArray = new PrintQueueIndexedProperty[2];
pArray[1] = PrintQueueIndexedProperty.QueueAttributes;
new PrintingPermission(PrintingPermissionLevel.DefaultPrinting).Assert();
try
{
using (LocalPrintServer s = new LocalPrintServer())
{
foreach (PrintQueue q in s.GetPrintQueues(pArray, flag))
{
if (printerName.Equals(q.FullName, StringComparison.OrdinalIgnoreCase))
{
q.InPartialTrust = true;
return(q);
}
}
}
}
finally
{
CodeAccessPermission.RevertAssert();
}
return(null);
}
AcquirePrintQueue(
string printerName
)
{
PrintQueue printQueue = null;
EnumeratedPrintQueueTypes[] types = new EnumeratedPrintQueueTypes[] {
EnumeratedPrintQueueTypes.Local,
EnumeratedPrintQueueTypes.Connections
};
//
// This forces us to acquire the cached version of the print queues.
// This theoretically should prevent crashing in the printing system
// since all it is doing is reading the registry.
//
PrintQueueIndexedProperty[] props = new PrintQueueIndexedProperty[] {
PrintQueueIndexedProperty.Name,
PrintQueueIndexedProperty.QueueAttributes
};
SystemDrawingHelper.NewDefaultPrintingPermission().Assert(); //BlessedAssert
try
{
//
// Get the PrintQueue instance for the printer
//
using (LocalPrintServer server = new LocalPrintServer())
{
foreach (PrintQueue queue in server.GetPrintQueues(props, types))
{
if (printerName.Equals(queue.FullName, StringComparison.OrdinalIgnoreCase))
{
printQueue = queue;
break;
}
}
}
if (printQueue != null)
{
printQueue.InPartialTrust = true;
}
}
finally
{
CodeAccessPermission.RevertAssert();
}
return(printQueue);
}
private PrintQueue AcquirePrintQueue(string printerName)
{
PrintQueue printQueue = null;
EnumeratedPrintQueueTypes[] enumerationFlag = new EnumeratedPrintQueueTypes[]
{
EnumeratedPrintQueueTypes.Local,
EnumeratedPrintQueueTypes.Connections
};
PrintQueueIndexedProperty[] propertiesFilter = new PrintQueueIndexedProperty[]
{
PrintQueueIndexedProperty.Name,
PrintQueueIndexedProperty.QueueAttributes
};
SystemDrawingHelper.NewDefaultPrintingPermission().Assert();
try
{
using (LocalPrintServer localPrintServer = new LocalPrintServer())
{
foreach (PrintQueue printQueue2 in localPrintServer.GetPrintQueues(propertiesFilter, enumerationFlag))
{
if (printerName.Equals(printQueue2.FullName, StringComparison.OrdinalIgnoreCase))
{
printQueue = printQueue2;
break;
}
}
}
if (printQueue != null)
{
printQueue.InPartialTrust = true;
}
}
finally
{
CodeAccessPermission.RevertAssert();
}
return(printQueue);
}
AcquirePrintQueue(
string printerName
)
{
PrintQueue printQueue = null;
EnumeratedPrintQueueTypes[] types = new EnumeratedPrintQueueTypes[] {
EnumeratedPrintQueueTypes.Local,
EnumeratedPrintQueueTypes.Connections
};
//
// This forces us to acquire the cached version of the print queues.
// This theoretically should prevent crashing in the printing system
// since all it is doing is reading the registry.
//
PrintQueueIndexedProperty[] props = new PrintQueueIndexedProperty[] {
PrintQueueIndexedProperty.Name,
PrintQueueIndexedProperty.QueueAttributes
};
(new PrintingPermission(PrintingPermissionLevel.DefaultPrinting)).Assert(); //BlessedAssert
try
{
//
// Get the PrintQueue instance for the printer
//
using (LocalPrintServer server = new LocalPrintServer())
{
foreach (PrintQueue queue in server.GetPrintQueues(props, types))
{
if (printerName.Equals(queue.FullName, StringComparison.OrdinalIgnoreCase))
{
printQueue = queue;
break;
}
}
}
if (printQueue != null)
{
printQueue.InPartialTrust = true;
}
}
finally
{
PrintingPermission.RevertAssert();
}
return printQueue;
}
/// <summary>
/// Get the PrintQueue from the PrinterName
/// </summary>
/// <param name="printerName"></param>
/// <returns></returns>
PrintQueue FindPrintQueue(string printerName)
{
EnumeratedPrintQueueTypes[] flag = new EnumeratedPrintQueueTypes[] { EnumeratedPrintQueueTypes.Local, EnumeratedPrintQueueTypes.Connections };
PrintQueueIndexedProperty[] pArray = new PrintQueueIndexedProperty[2];
pArray[1] = PrintQueueIndexedProperty.QueueAttributes;
new PrintingPermission(PrintingPermissionLevel.DefaultPrinting).Assert();
try
{
using (LocalPrintServer s = new LocalPrintServer())
{
foreach (PrintQueue q in s.GetPrintQueues(pArray, flag))
{
if (printerName.Equals(q.FullName, StringComparison.OrdinalIgnoreCase))
{
q.InPartialTrust = true;
return q;
}
}
}
}
finally
{
CodeAccessPermission.RevertAssert();
}
return null;
}
