Oh that sounds great, thank you.
With the bugreport: I dont know how to get more relevant information for the QVTKRenderWindowInteractor. So do you think i should close / delete / change the bug-report?
I fully understand that i have to solve this problem in the qml-vtk-python project. I try to implement the code in my main application and hope that things get more clear and i can apply it to the project so that others can participate.