[Attribute] onAction [Callback Signature] VBA: Sub OnAction(control As IRibbonControl, itemID As String, itemIndex As Integer) C#: void OnAction(IRibbonControl control, string itemID, int itemIndex) Visual Basic: Sub OnAction(control As IRibbonControl, itemID As String, itemIndex As Integer) C++: HRESULT OnAction([in] IRibbonControl *pControl, [in] BSTR *selectedID, [in] LONG cSelectedIndex) [Type] 
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