Hi, Sebastien! I need to implement dragging of an actors, so I really need to track mouse button release event. -- View this message in context: http://vtk.1045678.n5.nabble.com/Mouse-button-release-is-still-broken-in-5-8-0-tp4949887p4953458.html Sent from the VTK - Users mailing list archive at Nabble.com.