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Is there any reason I should use Win32 File I/o functions and procedures?

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In most cases using C or C++ library file I/O functions is adequate for the job. C++ methods, in particular, are designed to work well with the rest of the standard library and should probably be preferred to the Windows API functions in most cases.

However, there are things you can do with Windows API file I/O that are not part of the functionality of the C or C++ library functions. For example: memory mapped files and overlapped I/O. Also, you can (in theory) get better performance by working directly with the Windows API functions. But you really need to know what you''re doing in order to get any practical benefit.

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