If you want to use Visual Basic to send or receive data via the RS232 Port. You must add the MSCOMM Componet in your program. Then you have to set several parameters.example Comm-Port Number , Buad Rate, Flow Control.
Since mscomm is activex object, it is easier to develop your application by property box configuration additional by handwriting code. you can try winio too but it is a dll object. besides, you can try to develop your own dll file to meet your customized application.
hi ervery body..
i see this quastion but i aske about some thing else
that .. i want to connect my computer with phone system to know time and number that diled.. throw program with vb6