If the AnnAutomation contains one or more AnnObject objects, then this property will return true. Selecting an object in AnnAutomation is the equivalent of starting its AnnEditDesigner. Call the SelectObject or SelectObjects methods to select one or any group of the annotation objects.
Target Platforms: Windows 7, 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