Re: How to CreateFile a COM port twice more ?
- From: chris.aseltine@xxxxxxxxx
- Date: Tue, 10 Jun 2008 08:41:14 -0700 (PDT)
On Jun 10, 1:17 am, Kid <K...@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
I found CreateFile can only open my device "\\\\.\\COMx" once , how can I
modify source to support app open two more handle ?
Not possible. Serial ports are exclusive open, and for good reason --
they're backed by a read buffer, so if two applications are reading
from one port, how could they each independently make any sense of the
data they received?
.
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