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## Function template file_time_to_microseconds

boost::date_time::winapi::file_time_to_microseconds

## Synopsis

    // In header: <boost/date_time/filetime_functions.hpp>

    template<typename FileTimeT>
      boost::uint64_t file_time_to_microseconds(FileTimeT const & ft);

## Description

The function converts file_time into number of microseconds elapsed since 1970-Jan-01

| Note
Only dates after 1970-Jan-01 are supported. Dates before will be wrapped.

| Note
The function is templated on the `FILETIME` type, so that it can be used with both native `FILETIME` and the ad-hoc boost::date_time::winapi::file_time type.