Gets or sets the DefaultStackLength property. This dependency property indicates
the default Length to use for stacks that do not specify an explicit length or Auto.
The default value is Auto.
Target Platforms: Windows 11, Windows 10, 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