public void SortByZOrder( 
   GoObject[] a
)

Parameters

a

an array of GoObjects in layers of this layer collection; this array is modified

This method does not modify the order of any objects in any layer--it simply modifies the argument array by sorting the objects by their current Z-order in these layers. For example, if you have a few selected objects, you can use this method to find the selected object which is in front of the other selected objects. That would be the last object in the array after calling this method.

If one or more elements of the argument array a are not GoObjects that belong to one of these layers, the resulting sort order is indeterminate. In many circumstances you can easily create an array of GoObjects by calling CopyArray.

Reference

GoLayerCollection Class
GoLayerCollection Members
Overload List
SortByZOrder(GoCollection) Method