in src/win32/dt_win32.c [190:204]
static dt_status_t dt_timestamp_to_filetime(const dt_timestamp_t *ts, PFILETIME ft)
{
LARGE_INTEGER li;
if (!ts || !ft) {
return DT_INVALID_ARGUMENT;
}
li.QuadPart = ts->second * 10000000;
li.QuadPart += ts->nano_second / 100;
ft->dwLowDateTime = (long)li.QuadPart;
li.QuadPart >>= 32;
ft->dwHighDateTime = (long)li.QuadPart;
return DT_OK;
}