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#### windows::basic_random_access_handle::is_open

Inherited from windows::basic_overlapped_handle.

Determine whether the handle is open.

    bool is_open() const;

| Copyright © 2003-2019 Christopher M. Kohlhoff Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)