[vtkusers] How to get vtkSplineWidget's handle index ?

沧海一粟 liyihai2009 at qq.com
Mon Jun 8 03:56:58 EDT 2015

I use vtkSplineWidget to create curve interactively. I know that vtkSplineWidget has a Attribute "CurrentHanleIndex",  but we can't use it as it's protected. How can I  get the index of the selected spline handle, when clicking on it ?
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