OnItemExpand picture event

Global handler:

ENTRY OnItemExpand(IN INT _refId, IN INT _itemHandle, IN BOOL _bExpand) ; script actions END OnItemExpand

Special handler:

ENTRY XXX_OnItemExpand(IN INT _itemHandle, IN BOOL _bExpand) ; script actions END XXX_OnItemExpand

_refId	Parameter if INT type (required for global handler).
_itemHandle	Item identifier.
_bExpand	Attribute "expand" or "collapse" of the item.
XXX	Name of Reference variable connected to graphic object (without the character "_").

The picture event is being generated when given item is expanding (the parameter _bExpand=@TRUE) or collapsing in the displayer of Tree view type. The identifier _itemHandle contains the value, that was assigned to the item when it was added to the tree view using the function %HI_AddTreeItem.