Note: other than the 3 special PagePosition instances, FirstPage, LastPage and InvalidPage, these objects are normally instances of derived classes that maintain state information that is only relevant to the implementor of the associated IEmbeddedVisualPaginator interface. In other words, it is opaque to the driving logic.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2