 align="center"><b>Filename</b></td>
<td align="center"><b>Stream</b></td>
<td align="center"><b>Callback</b></td>
<td align="center"><b>Event</b></td>
</tr>
<tr><td> Receive data     </td><td> OutputFile </td><td> OutputStream  </td><td> WriteFunction </td><td> OnReceive  </td></tr>
<tr><td> Transmit data    </td><td> InputFile  </td><td> InputStream   </td><td> ReadFunction  </td><td> OnTransmit </td></tr>
<tr><td> Receive headers  </td><td> HeaderFile </td><td> HeaderStream  </td><td> HeaderFunction </td