[vtkusers] Interactor crashing in a QVTKWidget with vtkImagePlaneWidget

[Cyrille Faucheux]

Hello everyone,

I've got a small application that display a 3D stack of images in 3D 
with 3 orthogonal planes (vtkImagePlaneWidget), adaptated from some code 
from here : http://code.google.com/p/fw4spl/wiki/Tutorial6?wl=fr.

My code is using a vtkRenderWindow, and works as expected. Now I am 
trying to make it render into a QVTKWidget.

The rendering works fine, but when I click on a plane, I am supposed to 
be able to "drag" my plane in order to visualize the others slices. But 
right now, my application crashes as soon as I click on a plane, with an 
access violation from deep inside VTK.

I am compiling this code using Visual Studio 2010 in 32 bits on a 
Windows7 64bits, ITK 3.20.0 and VTK 5.6.1 compiled as static and Qt 
4.7.0 (that I compiled myself too).

My code (a bit simplified) is attached to this email. The type of images 
used by the application is a series of .bmp (no naming rule for the names).

Does somebody have an idea about what is going (I am doing?) wrong in my 
code?

Thanks in advance
Cyrille

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