In KeyDown is the MacOS COMMAND key defined in a TShiftState? I can't figure it out. Any ideas?
I'm not a Mac user, so I don't know whether your version is based on Carbon or Cocoa.
For Carbon, the command key MK_COMMAND (sames as MK_APPLE) is mapped to VK_CONTROL. See lcl/interfaces/carbon/mackeycodes.inc and carbonproc.pp.
I don't see anything in the widgetset class for Cocoa.