National Instruments PCI-8430 - Page 195

Whathappenstodatasenttoaclosedserial
port?
Becauseserialcommunicationportsareactiveonlywhentheportis
open(forexample,byusingCreateFile),datamaybereceivedandmade
availableonlywhentheportisopen.Assumethatanydatareceivedbya
closedcomportmaybelostorcorrupted.