Converting C++ program to VB.NET

Hi everyone,

I'm converting a program from C++ to VB.NET (2003) for work. I have 90% of it done, but one function has me stumped. Here's the C++ code:

Code:

---

int ReadPickJc5 ()
{
  unsigned long i, j, ulBytes;
  char * pPick, g_pByteInputPick ;

  ulBytes = (g_design.ulInputYarns + 7) / 8;
 
  pPick = (char*)malloc (ulBytes);
  if (pPick == NULL)
    {
      return 1;
    }

  if ( fread (pPick, 1, ulBytes, inFile) != ulBytes)
    {
      free (pPick);
      return 1;
    }
 

  for (i=0; i<ulBytes; i++)
    {
      for (j=0; j<8; j++)
        {

          if ((i*8 + j) >= g_design.ulInputYarns) break;         
          *(g_pByteInputPick + i*8 + j) = BitToByte (*(pPick + i), j);

        }
    }

  free (pPick);

  return 0;
}

---

Here's what I've got so far in vb.net:

Code:

---

    Public Function ReadPickJc5() As Int32

        Dim i, j, ulBytes As Long
        Dim pPick As ArrayList = New ArrayList
        Dim counter As Int32 = 0
        Dim tempPickReturned As ArrayList = New ArrayList

        ulBytes = (g_design.ulInputYarns + 7) / 8

        counter = 0
        While (counter < ulBytes)
            pPick.Add(bRead.ReadByte())
            counter += 1
        End While


        i = 0
        While (i < ulBytes)

            j = 0
            While (j < 8)

                If ((i * 8 + j) >= g_design.ulInputYarns) Then
                    Exit While
                End If

                'The commented line below is really confusing me:
                'tempPickReturned.Item(i * 8 + j) = BitToByte(pPick(i), j)

                j += 1
            End While
            i += 1
        End While

    End Function

    Public Function BitToByte(ByVal thisByte As Byte, ByVal shiftValue As Int32) As Byte

        Dim reply As Byte

        reply = Convert.ToByte(thisByte >> shiftValue)
        reply = reply And 1
        Return reply
    End Function

---

Any help would be appreciated greatly!