Section: Visualization Toolkit Widget Classes
To create an instance of class vtkWidgetEvent, simply invoke its constructor as follows
obj = vtkWidgetEvent
obj is an instance of the vtkWidgetEvent class.
string = obj.GetClassName () - Standard macros.
int = obj.IsA (string name) - Standard macros.
vtkWidgetEvent = obj.NewInstance () - Standard macros.
vtkWidgetEvent = obj.SafeDownCast (vtkObject o) - Standard macros.