Used to monitor Rhino's built in undo/redo support.

Namespace: Rhino.Commands
Assembly: RhinoCommon (in RhinoCommon.dll) Version: Rhino 6.0

C#

public static event EventHandler<UndoRedoEventArgs> UndoRedo

VB

Public Shared Event UndoRedo As EventHandler(Of UndoRedoEventArgs)

Type: System.EventHandler(UndoRedoEventArgs)

Supported in: 5D58w

Command Class
Rhino.Commands Namespace