Handling overwriting existing files

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There may be situations where the image file name that is specified on the TwainSave command-line already exists.  For these scenarios, TwainSave can handle this in three different ways (always overwrite, exit TwainSave without overwriting, or create unique file names without overwriting).


The -overwritemode option chooses how TwainSave will act when encountering an existing file.