[vtkusers] vtk, QVTKRenderWindowInteractor and vtkImageViewer2

[Lic. José M. Rodriguez Bacallao]

hi folks, I am using python and PyQt4 for displaying dicom images and
using QVTKRenderWindowInteractor and vtkImageViewer2 (or
vtkImageColorViewer from gdcm) to display it. The way I display the
images is with a tab widget and as a tab page I add a QMainWindow with
central widget set to QVTKRenderWindowInteractor with an
vtkImageViewer2. Problem is when I try to close a tab page
(QMainWindow) and then close the application, vtk is showing this
messages:

X Error: BadDrawable (invalid Pixmap or Window parameter) 9
  Extension:    136 (Uknown extension)
  Minor opcode: 9 (Unknown request)
  Resource id:  0x2c00493

this message does not appear when I close the application window
directly from the window close button. Is there a proper way to
destroy an vtk object?

PS: Which is the better way to display dicom images with vtk?

-- 
Lic. José M. Rodriguez Bacallao
Centro de Biofisica Medica
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Todos somos muy ignorantes, lo que ocurre es que no todos ignoramos lo mismo.

Recuerda: El arca de Noe fue construida por aficionados, el titanic
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