.

    FILE_DEVICE_NAMED_PIPE = 0x11,

.

    FILE_DEVICE_NAMED_PIPE = &H11

.

   USB_PIPE_INFO  PipeList[0];

.

// To get the USB_PIPE_INFO data

.

   size = Marshal.SizeOf(typeof(USB_NODE_CONNECTION_INFORMATION_EX)) + 32 * Marshal.SizeOf(typeof(USB_PIPE_INFO)); // Assuming 32 should be enough, you can make this larger

.

       IntPtr ptr_pipeinfo;

.

       int num = (bytes_returned - Marshal.SizeOf(typeof(USB_NODE_CONNECTION_INFORMATION_EX))) / Marshal.SizeOf(typeof(USB_PIPE_INFO));

.

       USB_PIPE_INFO[] pipe_info = new USB_PIPE_INFO[num];

.

     // Set ptr to an USB_PIPE_INFO element and marshal it back

.

     IntPtr ptr_pipeinfo = new IntPtr((byte*)ptr_connection.ToPointer()

.

                       + j * Marshal.SizeOf(typeof(USB_PIPE_INFO)));

.

     pipe_info[j] = (USB_PIPE_INFO)Marshal.PtrToStructure(ptr_pipeinfo, typeof(USB_PIPE_INFO));

.

Summary

File Constants for open, sopen, wopen, wsopen, _pipe

.

private const uint FILE_FLAG_FIRST_PIPE_INSTANCE = 0x00080000;

.

        public const int ERROR_BROKEN_PIPE = 109;

.

        public const int ERROR_BAD_PIPE = 230;

.

        public const int ERROR_PIPE_BUSY = 231;

.

        public const int ERROR_PIPE_NOT_CONNECTED = 233;

.

        public const int ERROR_PIPE_CONNECTED = 535;

.

        public const int ERROR_PIPE_LISTENING = 536;

.

        public const int RPC_X_INVALID_PIPE_OBJECT = 1830;

.

        public const int RPC_X_WRONG_PIPE_ORDER = 1831;

.

        public const int RPC_X_WRONG_PIPE_VERSION = 1832;

.

        public const int RPC_X_PIPE_CLOSED = 1916;

.

        public const int RPC_X_PIPE_DISCIPLINE_ERROR = 1917;

.

        public const int RPC_X_PIPE_EMPTY = 1918;

.

        FILE_FLAG_FIRST_PIPE_INSTANCE = 0x00080000,

.

    private const ulong ERROR_PIPE_CONNECTED = 535;

.

        if (lastErr == ERROR_PIPE_CONNECTED)

.

            if ((uint)Marshal.GetLastWin32Error() == ERROR_PIPE_CONNECTED)

.

  public const int FILE_CREATE_PIPE_INSTANCE  = 0x0004;     // named pipe

.

static extern int _pipe(int[] pfds, uint psize, int textmode);

.

Declare Function _pipe Lib "msvcrt.dll" (TODO) As TODO

.

Documentation

[_pipe] on MSDN