| case 6:
return PRINTER_ENUM.SHARED;
case 7:
return PRINTER_ENUM.NETWORK;
default:
return PRINTER_ENUM.LOCAL ;
}
}
}
#region 打印机位置状态枚举 PRINTER_ENUM
public enum PRINTER_ENUM
{
DEFAULT = 0x01,
LOCAL = 0x02,
CONNECTIONS = 0x04,
NAME = 0x08,
REMOTE = 0x10,
SHARED = 0x20,
NETWORK = 0x40
}
#endregion
#region 异常派生 EnumPrinterException
[Serializable]
public class EnumPrinterException: ApplicationException
{
public EnumPrinterException() { }
public EnumPrinterException (string message): base(message) { }
public EnumPrinterException (string message, Exception inner):
base(message, inner) {}
protected EnumPrinterException (SerializationInfo info,
StreamingContext context) : base(info, context)
{ }
}
#endregion //加上这个属性可以按导出到非托管对像的顺序排序
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public class PRINTER_INFO_1
{
public int flags;
public IntPtr pDescription;
public IntPtr pName;
public IntPtr pComment;
} public class PrinterSearcher
{
#region Search
public PrinterInfo[] Search(PRINTER_ENUM printerKind)
{
PrinterInfo[] pInfo = new PrinterInfo[0]; uint iNeeded = 0, iReturned = 0, iSize = 0;
IntPtr printers = IntPtr.Zero;
if (!EnumPrinters(printerKind, String.Empty, 1, printers, 0, ref iNeeded, ref iReturned) )
{ |
