rease as you go down. Index refers to all menu
 items including separators.
</p><h3>Parameters</h3><table class="parameter-list"><tr><td>int index</td><td>The index of the check box entry.</td></tr></table><h3>Return Value</h3><p>This widget to aid method chaining.</p></div></div>
</div><div class="member"><h2><span class="ddoc_anchor" id="Menu.popup"></span>auto <span class="symbol">popup</span>(this T)(int xPos, int yPos);
</h2>
<div class="declaration-description"><div class="sections"><p>Show the m