About how to make VB dll **- I * O port reading and writing ability

Users questions:If you write a dll using VC ask how to write, or there are other good way?
Experts answer: Why not MsComm control it? It provides a complete serial port read and write capabilities. For this type of programming language, VB, encounter problems, the first thought should be to find the relevant control.
  • This information provided by the users.Thanks!