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</dd>
<a id="MouseButton"></a>
<dt><pre><a href="input.html#MouseButton"><span class="Identifier">MouseButton</span></a> <span class="Other">=</span> <span class="Keyword">enum</span>
  <span class="Identifier">mb1</span> <span class="Other">=</span> <span class="DecNumber">0</span><span class="Other">,</span> <span class="Identifier">mb2</span><span class="Other">,</span> <span class="Identifier">mb3</span><span class="Other">,</span> <span class="Identifier">mb4</span