[vtkusers] program crashes on vtkOrientationMarkerWidget

[Nelson]

Hi All,

I have added vtkAxesActor to my render window, but it crashes.
The following is the code:

vtkSmartPointer<vtkAxesActor> axes = vtkSmartPointer<vtkAxesActor>::New();
m_pRenderer->AddActor( axes );

vtkSmartPointer<vtkOrientationMarkerWidget> widget =
vtkSmartPointer<vtkOrientationMarkerWidget>::New();
	widget->SetOutlineColor( 0.9300, 0.5700, 0.1300 );
	widget->SetOrientationMarker( axes );
	widget->SetInteractor( m_pRenderWindowInteractor );
	widget->SetViewport( 0.0, 0.0, 0.4, 0.4 );
	widget->SetEnabled( 1 );

Could anybody help me please?

-----
Best Regards,
Nelson
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