def wheelEvent(self,e):
        iren = None
        if self.mRenWin:
            iren = self.mRenWin.GetInteractor()

        if (not iren) or (not iren.GetEnabled()):
            return

        iren.SetEventInformationFlipY(e.x(),e.y(),
                                      (e.modifiers()&QtCore.Qt.ControlModifier),
                                      (e.modifiers()&QtCore.Qt.ShiftModifier),
                                      chr(0),0,None)
        
        self.SelectActiveRenderer(iren)
        
        if e.delta()>0:
            iren.InvokeEvent("MouseWheelForwardEvent")
        else:
            iren.InvokeEvent("MouseWheelBackwardEvent")
wheelEvent(e: QWheelEvent) -> None
dataset/ETHPy150Open VisTrails/VisTrails/contrib/titan/vtkviewcell.py/QVTKViewWidget.wheelEvent