Vista - Re: Sharing COM Port access between Processes

Hi,

You will have to write a wrapper class for the serial port access to allow
this sharing. In the wrapper, you publish the methods that you want to
share (and events), then handle the shared access using standard Threading
sharing constructs -- though threading isn't actually being used explicitly.

I have example code for this (a VB6 ActiveX EXE) in my book, see below.
However, .NET code would make it even cleaner.

Of course, your wrapper class (dll) becomes a new object, and is no longer
an instance of SerialPort -- you can, however, inherit SerialPort, and
overload the methods that you want to share to add the additional "stuff"
that I mention above.

Dick

--
Richard Grier, MVP
Hard & Software
Author of Visual Basic Programmer's Guide to Serial Communications, Fourth
Edition,
ISBN 1-890422-28-2 (391 pages, includes CD-ROM). July 2004, Revised March
2006.
See www.hardandsoftware.net for details and contact information.