Sets or Retrieves the property indicating whether the port will discard Null characters.
MSComm32 and SComm64 have the same syntax and functionality.
SComm1.NullDiscard = value
A boolean expression
True = Null characters (Bytes where the ascii value is zero) will be removed from the incoming data stream .
False = Null characters will not be removed from the data stream. ie not entered into the receive buffer.