Re: serial port communication qestion...

On Aug 22, 7:17 pm, cooper...@xxxxxxxxx wrote:
hi everyone,

i am a beginner of pascal language. nowadays, i am learning to deal
with serial port.
i found some examples, such as opening port, writing to port:

eg.
//SerSetParams(MySerialHandle, 9600,8,EvenParity,1,[]);
//SerWrite(MySerialHandle, bffr,2);

my question is why the 'MySerialHandle' argument appears in these
command.
what is the purpose of this argument?

MySerialHandle is the unique "handle" returned from the open for the
serial device. Remember, you can have more than one serial device, so
there has to be a way to distinguish them. The "handle" is just the
way the code distinguishes between opened serial devices.


.

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