Migration Guide : E. Features Introduced in OpenROAD 6.2 : Changes to Existing Features : TreeviewField Class Gets New Events
 
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TreeviewField Class Gets New Events
The TreeviewField class gains the following new events:
ChildMouseEnterNode
This event is triggered for a composite field when one of its children receives a MouseEnterNode event.
ChildMouseExitNode
This event is triggered for a composite field when one of its children receives a MouseExitNode event.
MouseEnterNode
This event occurs when the mouse cursor enters a TreeviewField's TreeNode. MouseEnterNode events do not occur when the mouse is captured (when the mouse is held down as the move occurs). If a MouseEnterNode event and a MouseEnter event for the TreeviewField happen simultaneously, the MouseEnter event is triggered first.
MouseExitNode
This event occurs when the mouse cursor exits a TreeviewField's TreeNode.
Scroll
This event is triggered after the user has clicked a scroll bar for a table field, a viewport, a TreeviewField, or an independent scrollbar. A scroll event is generated if it is scrolled using the scroll bar or the mouse wheel.
For complete information about these events, see Events in the Language Reference Guide.