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How to visit serial port COM1 under XP&NT?

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onon

onon

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I want to visit serial port COM1 under XP&NT using MS Visual C++,but it cannot be realized using _inp() and _outp().

Would you help me to figure out how to visit COM1 using Visual C++?

Thank you very much!
 
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For NT, try CreateFile("COM1",...) and then WriteFile and ReadFile on the handle.
 
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You'd better use special class.
You can take it from "CodeProject"
 
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