VTK Cocoa support should migrate to NSTrackingArea when 10.5 is min requirement
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
VTK's Cocoa support is (ab)using deprecated APIs. We should switch to use NSTrackingArea, as per this discussion:
http://vtk.1045678.n5.nabble.com/Changes-to-the-Carbon-and-Cocoa-interactors-td1252269.html#a1252269
As long as 10.3 and 10.4 support are needed, we can't switch.