Keypresses not read in Visualization GUI on Mac OS X

[translunar]

I'm trying to view PCD files using pcl_viewer on Mac OS X, and if — in the window — I try use 'h' for help, it takes my input and puts it in the console window instead of processing it in the GUI loop.

Is there a workaround for this? I've been ignoring it for a few months, but feel like there must be a solution out there somewhere.

Do we even know a cause? I'd have a crack at it if someone could point me in the right direction, but UI is not my forte.

Original post: http://www.pcl-users.org/PCL-viewer-does-not-allow-interactivity-on-Mac-OS-X-td4034623.html

[translunar]

Okay, may be this VTK bug. Except that seems to be covered already: https://github.com/PointCloudLibrary/pcl/blob/master/cmake/pcl_targets.cmake#L324

I've also checked my Homebrew vtk6 configuration settings, and I compiled it with --with-qt, which should enable the VTK_USE_COCOA flag. But I don't see where VTK_USE_COCOA is set in my build. I wonder if PCL is not getting that option properly from VTK.