SI_OBJECT_INFO = GetObjectInformation()
Returns information identifying the object
whose security is to be editted, and which pages are to appear in the property sheet
Comments
Due to peculiarities of the underlying system calls, this method will only be called once,
and subsequent calls will return the information obtained on the first call. As a consequence, a new
instance of the interface will need to be created for each object whose security is to be displayed.
Return Value
Your implementation of this method should return a SI_OBJECT_INFO tuple