FlushFileBuffers on iostream

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#1957

From: Old Wolf
Date: Mon, 14 May 2007 22:20

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Is it possible to obtain a Windows HANDLE for a file
that I've opened as a C++ fstream, so that I can call
FlushFileBuffers on it?

I'm not sure whether fstream::sync (or stdio fflush)
calls this function; I think those functions just
flush data from the C or C++ library buffering, to
the operating system. The FlushFileBuffers causes
the operating system to ensure the data has been
sent to the disk.

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