My program calls Wait() on a message port signal, Ctrl-C & Ctrl-D. When I run it directly from the Shell there seem to be two Ctrl key events for each Ctrl-C or Ctrl-D keypress. If I run it within a debugger (either single stepping or running) there is only the expected single Ctrl key event.

It doesn't bother me that much as I've compensated for it but if anyone has any idea about where this extra Ctrl key event is coming from, I'm all ears. :)