




A pane that displays a hierarchical list of items which (unlike tree-view) allows extended selection.
The class 
extended-selection-tree-view
 is like tree-view but allows more than one item to be selected at once.
extended-selection-tree-view
 is a subclass of collection, it does its own items handling and you must not access its 
items
 and related slots directly. In particular for 
extended-selection-tree-view
 do not pass 
:items
, 
:items-count-function
, 
:items-get-function
 or 
:items-map-function
, and do not use the corresponding accessors.
extended-selection-tree-view
 with the second argument being a list of the selected items, unless 
interaction
 is 
:single-selection
, in which case it behaves the same as in tree-view.CAPI Reference Manual - 15 Dec 2011