The OnWrite event occurs when other application writes data to the sniffed port. (See OnWriteData event)
Data [in, out] Pointer to the VARIANT type variable that contains data written to the port as VT_ARRAY | VT_UI1.
This event is really convenient to use under VB6, C#, VB.Net. See example.
Example (VB 6.0):
Private Sub SerialPortSniffer1_OnWrite( Data As Variant)
|ReDim Data (2) ‘ set new size for the data|
|Data (0) = 3|
|Data (1) = 5|