How to get the value of a dropDown control?

[coecolfegeday]

dropDown on the ribbon: \[code\]<dropDown id="dd01"onAction="dd01OnAction"/>\[/code\]In VBA I need\[code\]Sub dd01OnAction(control As IRibbonControl, ID As String, index As Integer)If dd01.Value = "http://stackoverflow.com/questions/12724136/Sky" Then MsgBox "323"End Sub\[/code\]How can I get the value of dropDown ?