protected static void SetDeviceInfo2(string name, PRINTER_INFO_2 newInfo)
{
IntPtr printerHandle;
PrinterDefaults defaults = new PrinterDefaults {
DesiredAccess = PRINTER_ACCESS.PrinterAllAccess
};
if (!PrintPort.OpenPrinter(name, out printerHandle, ref defaults))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
try
{
IntPtr infoHandle = Marshal.AllocHGlobal(Marshal.SizeOf(newInfo));
Marshal.StructureToPtr(newInfo, infoHandle, false);
try
{
if (!SetPrinter(printerHandle, 2, infoHandle, 0))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
catch { throw; }
finally { Marshal.FreeHGlobal(infoHandle); }
}
catch { throw; }
finally { PrintPort.ClosePrinter(printerHandle); }
}
protected static PRINTER_INFO_2[] enumDeviceInfos2(PRINTER_ENUM_FLAGS flags)
{
uint cbNeeded = 0;
uint cReturned = 0;
if (EnumPrinters(flags, null, 2, IntPtr.Zero, 0, ref cbNeeded, ref cReturned))
{
return(null);
}
int lastWin32Error = Marshal.GetLastWin32Error();
if (lastWin32Error == ERROR_INSUFFICIENT_BUFFER)
{
IntPtr pAddr = Marshal.AllocHGlobal((int)cbNeeded);
if (EnumPrinters(flags, null, 2, pAddr, cbNeeded, ref cbNeeded, ref cReturned))
{
PRINTER_INFO_2[] printerInfo2 = new PRINTER_INFO_2[cReturned];
int offset = pAddr.ToInt32();
Type type = typeof(PRINTER_INFO_2);
int increment = Marshal.SizeOf(type);
for (int i = 0; i < cReturned; i++)
{
printerInfo2[i] = (PRINTER_INFO_2)Marshal.PtrToStructure(new IntPtr(offset), type);
offset += increment;
}
return(printerInfo2);
}
Marshal.FreeHGlobal(pAddr);
lastWin32Error = Marshal.GetLastWin32Error();
}
throw new Win32Exception(lastWin32Error);
}
protected PRINTER_INFO_2 ToInfo2()
{
PRINTER_INFO_2 info = new PRINTER_INFO_2();
info.pServerName = ServerName;
info.pPrinterName = Name;
info.pShareName = ShareName;
info.pPortName = PortName;
info.pDriverName = DriverName;
info.pComment = Description;
info.pLocation = Location;
info.pSepFile = SeparatorFile;
info.pPrintProcessor = Processor.Name;
info.pDatatype = Processor.DataType;
info.pParameters = Processor.Parameters;
info.Attributes = Attributes;
info.Priority = Priority;
info.DefaultPriority = DefaultPriority;
info.StartTime = StartTime;
info.UntilTime = UntilTime;
info.Status = Status;
info.cJobs = Jobs;
info.AveragePPM = AveragePPM;
return(info);
}
protected static void RenameDevice2(string oldName, string newName)
{
try
{
PRINTER_INFO_2 pi = GetDeviceInfo2(oldName);
pi.pPrinterName = newName;
PrintDevice.SetDeviceInfo2(oldName, pi);
}
catch { throw; }
}
public static void Install(PRINTER_INFO_2 info)
{
try
{
if (!AddPrinter(null, 2, ref info))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
Spool.Restart();
}
catch { throw; }
}
public static SmartPrintDevice Install(string name, string description, string portName)
{
PRINTER_INFO_2 info = new PRINTER_INFO_2()
{
pPrinterName = name,
pComment = description,
pPortName = portName,
pDriverName = DEFAULT_DRIVER_NAME
};
SmartPrintDevice device = new SmartPrintDevice(name, description, portName);
Install(info);
return(device);
}
protected override void FromInfo2(PRINTER_INFO_2 info)
{
ServerName = info.pServerName;
ShareName = info.pShareName;
Description = info.pComment;
Location = info.pLocation;
SeparatorFile = info.pSepFile;
Processor = new PrintProcessor(
info.pPrintProcessor,
info.pDatatype,
info.pParameters);
Attributes = info.Attributes;
Priority = info.Priority;
DefaultPriority = info.DefaultPriority;
StartTime = info.StartTime;
UntilTime = info.UntilTime;
Status = info.Status;
Jobs = info.cJobs;
AveragePPM = info.AveragePPM;
}
internal static extern bool AddPrinter(string pName, uint Level, [In] ref PRINTER_INFO_2 pPrinter);
