How do I determine the value of the OnAction property of an existing
(built-in or custom) commandbar item? I would like to do something
like this:

Public Sub ShowOnAction()

MsgBox Application.CommandBars("File").Controls("Print
Preview").OnAction

End Sub

This sub does not fail, but it returns nothing.

I would also like to intercept the subroutine called by the OnAction
property and replace it like in this Word procedu

http://www.mvps.org/word/FAQs/Macros...tSavePrint.htm

Can that be done in Excel?