TreeView wraps the Win32 tree-view common control, exposing root and child
node insertion, selection get/set, per-item text and user data, and delegate
events for selection changes and context-menu (right-click) requests. Nodes
are referred to by the opaque TreeItem handle returned at insertion time.
A hierarchical tree view ("SysTreeView32").
TreeView wraps the Win32 tree-view common control, exposing root and child node insertion, selection get/set, per-item text and user data, and delegate events for selection changes and context-menu (right-click) requests. Nodes are referred to by the opaque TreeItem handle returned at insertion time.