ZChild (filter)
A hook on which to hang various properties (such as At
and Name) that control the behavior of an overlapping subwindow.
- At
- (At, 0.5 0.5)
Position, as discussed in Section [sec:atprop] .
- Open
- (Boolean, FALSE)
If true, the subwindow is initially visible. Otherwise,
it is invisible until opened by user or program action
(typically via PopButton or PopMButton). Open subwindows
are useful for achieving layouts that cannot be achieved
by a hierarchy of HBoxes and VBoxes.
- Notes
- In practice, most overlapping subwindows begin with a ZChild
with properties. ZChild itself has no interactive behavior or
appearance, but because it is a HighlightVBT, it ensures that
Buttons and other descendants that also highlight by HighlightVBT
don't visually interfere with other overlapping subwindows.
- See Also
- ZSplit and ZChassis