Checking to see if the file is open and then trying to open it introduces a race condition. It's better to just try to open the file, then handle any errors from not being able to do so.

In reply to Re: How do I test to see if another process is writing to a file (in Windows) by mr_mischief
in thread How do I test to see if another process is writing to a file (in Windows) by jmurphy

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