If you set an empty AnnPicture, this AnnPointObject will use the picture defined in DefaultPicture.
If this property has a valid image, the AnnPointObject will draw this picture around CenterPoint.
If this property does not have a valid image, the AnnPointObject will use Radius to draw an ellipse around CenterPoint.
For more information, refer to Using Pictures in 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