</p><h3>Parameters</h3><table class="parameter-list"><tr><td>int index</td><td>The index of the item to enable.</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.invoke"></span>auto <span class="symbol">invoke</span>(this T)(int index);
</h2>
<div class="declaration-description"><div class="sections"><p>Invoke a menu item by its index. The item indexes start at zero for the
 top-most entry and inc