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how to switch b/w event driven and polling serial (port) communication using Visual C++?

I need event driven serial comm to emulate hyper-terminal. I also need to polling serial port to read/write the register value from a embedded module and display it by just one button click which means sending read command and receive the value and display it. How do I do it?
1 Solution
Check out http://msdn.microsoft.com/library/en-us/dnfiles/html/msdn_serial.asp ("Serial Communications in Win32 ") - the sample that comes with the article (http://download.microsoft.com/download/4/7/2/47291d3a-b5b5-4447-8182-4b72b505a603/4918.exe) pretty much is like HyperTerm.
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