[vtkusers] using vtkFlRenderWindowInteractor

[gwenael.guillard at enst-bretagne.fr]

Hi,

I'm using vtkFlRenderWindowInteractor in a fltk GUI. The problem is when I'm 
hiding the GUI then showing it, there isn't anything left in the 
vtkFlRenderWindowInteractor. It seems that a pointer (to what?) has been 
destructed or something like that. May someone help me?

Thank you for your help,

Gwen