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Serial communication from C++ to C#

Hello,

I am converting c++ codes to C# now.
When I get to serial communication parts, I found the data types used in C++
are different from C# which is not at all supprising at me.
But problem is that in C# there is very convenient class for rs323c
communication called SerialPort.
It only uses byte date type ( 8 byte unsigned value) or char (16 bit
unicode) as input parameter.
Neither of them has support a negative value. The old codes of c++ sent a
negative value through writefile function to serial port. It was poosible
because char is signed 1 byte value. -128~127.

How do I archive this goal in C#?

TIA

Aug 9 '06 #1
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