Breaking out of a loop with esc key

This is a discussion on Breaking out of a loop with esc key within the C Programming forums, part of the General Programming Boards category; I am writing a datalogger program that uses an infinite loop to log data from the parallel port to a ...

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    Breaking out of a loop with esc key

    I am writing a datalogger program that uses an infinite loop to log data from the parallel port to a file. I can use Ctrl-C to exit the program but the file handle is not released. Is there a way to use the Esc-key or an F-key to break the loop to close files and end the program systematically?

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    Woof, woof! zacs7's Avatar
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    You can free the stuff, just catch SIGTERM (not SIGKILL) then clean up the stuff.

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    I'm a novice. Can you give me an example. My compiler has the signal.h header file. I will be compiling to run this program on a DOS machine.

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