<div dir="auto">Hi David,<div dir="auto"><br></div><div dir="auto">I tested both with Qt 5.7.0 and 5.7.1. Sorry I forgot to mention this.</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">Thanks.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Feb 3, 2017 19:27, "David Gobbi" <<a href="mailto:david.gobbi@gmail.com">david.gobbi@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Enzo,<div><br></div><div>Can you also report what version of Qt you are using? Be sure to include the patch number, e.g. Qt 4.8.5.</div><div><br></div><div> - David<br><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Feb 1, 2017 at 11:43 AM, Enzo Matsumiya <span dir="ltr"><<a href="mailto:enzo.matsumiya@gmail.com" target="_blank">enzo.matsumiya@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi,<div><br></div><div>I'm experiencing exactly this bug, though not only when scrolling, dragging also freezes:</div><div><br></div><div><a href="http://www.paraview.org/Bug/view.php?id=15822" target="_blank">http://www.paraview.org/Bug/vi<wbr>ew.php?id=15822</a></div><div><br></div><div>- macOS 10.11 or 10.12</div><div>- QVTKWidget, vktResliceImageViewer with a DICOM data set</div><div>- Either VTK 7.0 or 7.1</div><div><br></div><div>I normally use the MacBook connected to an external monitor, keyboard and mouse (non-Apple). I just recently stumbled on this issue when I needed to work with it on my lap.</div><div><br></div><div>When using an external mouse, everything works fine.</div><div>When using the trackpad, it *looks* like it worked (windowing is changed, reslice occurs, etc), but it stats getting so slow that the application freezes. The external trackpad has the same behaviour (not sure this is obvious). If it's not very clear, please download the videos attached to the bug report mentioned.</div><div><div><br></div><div><br></div><div>I hope there is some solution for this.</div><div><br></div><div><br></div><div>Thank you very much!</div><span class="m_2212012400354531476HOEnZb"><font color="#888888"><div><br></div>-- <br><div class="m_2212012400354531476m_1540632853309073538gmail_signature"><div dir="ltr"><br>Enzo Ferlin Matsumiya<br>enzo.matsumiya AT gmail DOT com</div></div></font></span></div></div></blockquote></div></div></div></div>
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