box

In the object model this is RibbonBox
A container that organises controls in a group.
This type of control is invisible in that it does not have a border or any UI component.
It can be vertical or horizontal.

<customUI xmlns="http://schemas.microsoft.com/office/2009/07/customui"> 
  <ribbon startFromScratch="true"> 
    <tabs> 
      <tab id="CustomTab" label="My Tab"> 
        <group id="Group1" label="MyGroup"> 
          <box id="MyBox" 
               boxStyle="horizontal" > 
             <button id="button1" 
                     label="Button" 
                     imageMso="HappyFace" /> 
          </box>  
        </group> 
      </tab> 
    </tabs> 
  </ribbon> 
</customUI> 

Attributes (properties)

Callbacks (run-time)

Children

This control can contain any type of control except (separator, group or tab).

The RibbonBox object has an Items collection that returns a RibbonComponentCollection
This can be used to iterate over the controls
Then controls in a box can only be changed at design time