# CSJ2K.j2k.io.BinaryDataInput.readDouble

## Content

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<h1 id="CSJ2K_j2k_io_BinaryDataInput_readDouble_" data-uid="CSJ2K.j2k.io.BinaryDataInput.readDouble*">readDouble Method
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<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="CSJ2K_j2k_io_BinaryDataInput_readDouble_" data-uid="CSJ2K.j2k.io.BinaryDataInput.readDouble*"></a>
<h4 id="CSJ2K_j2k_io_BinaryDataInput_readDouble" data-uid="CSJ2K.j2k.io.BinaryDataInput.readDouble">readDouble()</h4>
<div class="markdown level1 summary"><p>Should read an IEEE double precision (i.e., 64 bit) floating-point
number from the input. Prior to reading, the input should be realigned
at the byte level.</p>
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<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">double readDouble()</code></pre>
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  <pre><code class="lang-vbnet hljs">Function readDouble() As Double</code></pre>
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<h5 class="returns">Returns</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></td>
      <td><p>The next byte-aligned IEEE double (64 bit) from the input.</p>
</td>
    </tr>
  </tbody>
</table>
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