private static extern bool EnumPrinters(PrinterEnumFlags Flags, string Name, uint Level, IntPtr pPrinterEnum, uint cbBuf, ref uint pcbNeeded, ref uint pcReturned);

public static PRINTER_INFO_2[] enumPrinters(PrinterEnumFlags Flags)

if (EnumPrinters(Flags, null, 2, IntPtr.Zero, 0, ref cbNeeded, ref cReturned))

if (EnumPrinters(Flags, null, 2, pAddr, cbNeeded, ref cbNeeded, ref cReturned))

Documentation

[EnumPrinters] on MSDN

Structures

3: PRINTER_INFO_2

Summary

Used by the EnumPrinters call in Winspool.

4: PRINTER_INFO_5

Summary

Used by the EnumPrinters call in Winspool.

Enums

5: PrinterEnumFlags

Summary

Used by the EnumPrinters function in Winspool.

6: PRINTER_ATTRIBUTES

/// but it can be retrieved by EnumPrinters and GetPrinter.

Access PInvoke.net directly from VS: