I develope an outlook 2010 add-in, I have Office.CommandBars cmdBars that holds Office.CommandBarButton, I set the buttonTemp_Dial.Style = Office.MsoButtonStyle.msoButtonIconAndCaption and buttonTemp_Dial.Picture have a reference to icon pic. The icon in add in is small how can I change it to big Icon?
the add-in is in separate tab in Outlook, is there a way to put the add in to the "Home" tab?
If you use the old CommandBars based API, your button will appear on the Addins tab, which is probably not something that you want.
Your add-in (on the low level) needs to implement the IRibbonExtensibility interface and return your customization as XML - see http://msdn.microsoft.com/en-us/library/office/bb226712(v=office.12).aspx