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##### windows::basic_stream_handle::cancel (1 of 2 overloads)

Inherited from windows::basic_overlapped_handle.

Cancel all asynchronous operations associated with the handle.

    void cancel();

This function causes all outstanding asynchronous read or write operations to finish immediately, and the handlers for cancelled operations will be passed the `boost::asio::error::operation_aborted` error.

###### Exceptions

boost::system::system_error

  Thrown on failure.