If you have not already have a read of Stephen Bullen's chapter on Ribbonx
http://www.oaltd.co.uk/Excel2007ProgRef/Default.htm

The getXXX callbacks are, to me at least, a bit misleading in their name.
The do not get/return anything to you as the programmer. Instead they
get/return information to the Ribbon. So you use it to control the
Description information that the control uses. Rather than as the name
suggests get the description information from the control.

And yes the VBA functionality of the ribbon is limited compared to the
Commandbar object model. That said the ribbon can be much easy to produce
and maintain than commandbar coding *if* you are using controls that already
exist. So to add a fully functioning button to make stuff bold requires only
a reference in the xml to the idMso. Plus creation and destruction of the
ribbon is automatic when the workbook opens and closes. Also when it
activates or deactivates the ribbon controls are automatically
removed/returned.

Cheers
Andy

--

Andy Pope, Microsoft MVP - Excel
http://www.andypope.info
"Paul Martin" wrote in message
...
As an addendum, I've been playing around with the button's Callbacks.
I thought getDescription might be useful, but I can't work out how it
is used, what it is used for. Can anyone enlighten me?

TIA