[vtk-developers] vtkBorderRepresentation - virtual overrides not called - VTK5

[John Platt]

Hi all,

 

The virtual overrides

 

   virtual void vtkBorderRepresentation::StartWidgetInteraction(double
eventPos[2]);

   virtual void vtkBorderRepresentation::WidgetInteraction(double
eventPos[2]);

 

are not called in preferences to the superclass versions

 

  virtual void vtkWidgetRepresentation::StartWidgetInteraction(double*
vtkNotUsed(eventPos[2])) {}

  virtual void vtkWidgetRepresentation::WidgetInteraction(double*
vtkNotUsed(eventPos[2])) {}

 

because the argument specifications are slightly different

 

            ( double* ) 

            ( double* const )

 

Consequently, the border representation does no respond to mouse events.

 

Changing the derived class versions to 

 

  virtual void vtkBorderRepresentation::StartWidgetInteraction(double*
eventPos);

  virtual void vtkBorderRepresentation::WidgetInteraction(double*
eventPos);

 

appears to fix the problem.

 

Maybe this is a peculiarity of the MS VC6 compiler?

 

John.

 

 

 

 

 

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