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<p>Queries the stream information asynchronously. </p>
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<p>When the operation is finished <em>slot</em> will be called. You can then call <a class="el" href="classGio_1_1FileOutputStream.html#aff73b62f94cc0be14f8271480aab6299" title="Finalizes the asynchronous query started by g_file_output_stream_query_info_async().">query_info_finish()</a> to get the result of the operation.</p>
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<p>For the synchronous version of this function, see <a class="el" href="classGio_1_1FileOutputStream.html#a660a0130611aad21965a3f74c2fe90cd" title="Queries a file output stream for the given attributes .">query_info()</a>.</p>
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<p>If <em>cancellable</em> is not NULL, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, a <a class="el" href="classGio_1_1Error.html" title="Exception class for giomm errors.">Gio::Error</a> with CANCELLED may be thrown</p>
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<p>The operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, a <a class="el" href="classGio_1_1Error.html" title="Exception class for giomm errors.">Gio::Error</a> with CANCELLED may be thrown</p>
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<dl><dt><b>Parameters:</b></dt><dd>
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<tr><td class="paramname">slot</td><td>Callback to call when the request is satisfied. </td></tr>