hi guys!
when I use vtk7.1.1 in my test. I get one error!
step 1: I have one test project by c#.net2017
step 2: create one window into my control.
step 3: leave my mouse from control
step 4: when my mouse move into control, my project get one error then auto exit!
debug infor in follow:
![vtk7.1.1.png](data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==)