title: What does it mean for a ComboBox to be "hot"?
body: <p>ComboBoxes have a <a href="https://msdn.microsoft.com/en-us/library/system.windows.forms.visualstyles.comboboxstate(v=vs.110).aspx" rel="nofollow">ComboBoxState</a>, which can be <em>Normal</em>, <em>Disabled</em>, <em>Pressed</em>, or <em>Hot</em>.</p>
  
  <p>The first three seem obvious, but what is "Hot"?</p>