WordprocessingML consumers which do not support the display of pictures or shapes may make use this property to describe the picture to the user. Screen reading applications or other assistive technologies may also make use of the property to describe the picture or shape to handicapped users.
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