A primary interface in a COM coclass that managed code requires to interoperate with the corresponding COM object. Use this primary interface to disambiguate when a method and an event on the COM object share the same name. Cast to this interface to call the method; cast to the latest events interface to connect to the event. Otherwise, use the interface in the Microsoft® .NET Framework that is derived from the COM coclass to access methods, properties, and events of the COM object.
For information about the COM object, see Application.
Assembly: Microsoft.Office.Interop.PowerPoint (in Microsoft.Office.Interop.PowerPoint.dll)