[vtkusers] VTK 6 porting

[Frédéric Speisser]

Hello all,

We want to port our application using Vtk 5.9 to Vtk 6.
Some code working on 5.9 does not work in 6, simple example with 
following line :

vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();

returns a NULL pointer ...

Seems I must do something described here 
http://www.vtk.org/Wiki/VTK/Build_System_Migration :


"The application code must list vtkRenderingOpenGL in its components to 
use OpenGL for rendering and include the VTK_USE_FILE to add compiler 
definitions. This ensures that the object factory for the 
vtkRenderingOpenGL module will be initialized and uses whenever classes 
from vtkRenderingCore are uses in your application code. If you notice 
the interface classes in these modules returning NULL pointers it is 
likely that one of these implementation modules providing appropriate 
overrides is missing from the dependency list."

I'm already linking with vtkRenderingOpenGL-6.0.lib in my sample project 
but what should i do with "VTK_USE_FILE" ?

Any hints would be wellcome, thanks a lot !


Frédéric
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