Derive a custom class from CMFCVisualManagerOffice2007

问题

I was trying to derive a custom class from CMFCVisualManagerOffice2007. Can you suggest me steps to be followed in order to derive a CCustomMFCVisualManagerOffice2007?

I am getting following error:

error C2248: 'CMFCVisualManagerOffice2007::CMFCVisualManagerOffice2007': cannot access protected member declared in class 'CMFCVisualManagerOffice2007'

I am looking for something on the lines of: MFC CMFCVisualManager Override

来源：https://stackoverflow.com/questions/42635165/derive-a-custom-class-from-cmfcvisualmanageroffice2007