<div dir="ltr">Hi Elvis,<div><br></div><div>The commit logs might hold the answers to some of your questions.</div><div><br></div><div>Here's the history line for when QVTKRenderWindowInteractor.py was created:</div><div><a href="https://gitlab.kitware.com/vtk/vtk/commits/720b580c/Wrapping/Python/vtk/qt/QVTKRenderWindowInteractor.py">https://gitlab.kitware.com/vtk/vtk/commits/720b580c/Wrapping/Python/vtk/qt/QVTKRenderWindowInteractor.py</a><br></div><div><br></div><div>The history continues here:</div><div><a href="https://gitlab.kitware.com/vtk/vtk/commits/3f70e5ff/Wrapping/Python/vtk/qt4/QVTKRenderWindowInteractor.py">https://gitlab.kitware.com/vtk/vtk/commits/3f70e5ff/Wrapping/Python/vtk/qt4/QVTKRenderWindowInteractor.py</a><br></div><div><br></div><div>And finally comes to the present:</div><div><a href="https://gitlab.kitware.com/vtk/vtk/commits/master/Wrapping/Python/vtk/qt/QVTKRenderWindowInteractor.py">https://gitlab.kitware.com/vtk/vtk/commits/master/Wrapping/Python/vtk/qt/QVTKRenderWindowInteractor.py</a><br></div><div class="gmail_extra"><br><div class="gmail_quote">Also, here is some pre-history:</div><div class="gmail_quote"><a href="https://gitlab.kitware.com/vtk/vtk/commits/bae05540/Wrapping/Python/QVTKRenderWidget.py">https://gitlab.kitware.com/vtk/vtk/commits/bae05540/Wrapping/Python/QVTKRenderWidget.py</a></div><div class="gmail_quote"><a href="https://gitlab.kitware.com/vtk/vtk/tree/5b48ce33/Wrapping/Python">https://gitlab.kitware.com/vtk/vtk/tree/5b48ce33/Wrapping/Python</a><br></div><div class="gmail_quote"><br></div><div class="gmail_quote"> - David</div></div></div>