ZSplit (split)

Organizes its children as overlapping subwindows. The first child is special: it is the background, and it underlies all overlapping windows and defines the shape of the ZSplit itself. The background child should be enclosed in a ZBackground form. It's recommended that non-background children of ZSplit be either ZChild or ZChassis, since those interactors support position control, non-interfering highlighting, and so on.

Shape
The shape of its background child.
See Also
CloseButton, ZChassis, ZChild, ZMove, and ZGrow