Gets or sets the world position to use instead of the pointer position for this annotation layer. If you set this value, rather than responding to the pointer, this layer will be fixed on the provided world position. A world position has x and y values that range from 0 to 1 that represent the global position of the cursor relative to the entire ranges of the axes. The default of (NaN, NaN) means that the layer should react to pointer movement.
This is a dependency property.
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
