VTK  9.2.6

Rendering → Widgets Relation

File in RenderingIncludes file in Interaction/Widgets
VR / vtkVRMenuRepresentation.hvtkWidgetRepresentation.h
VR / vtkVRMenuWidget.hvtkAbstractWidget.h
VR / vtkVRPanelRepresentation.hvtkWidgetRepresentation.h
VR / vtkVRPanelWidget.hvtkAbstractWidget.h