Non opaque NSView subclass moving its window when dragged

FROM : Raphael Sebbe @ Google
DATE : Tue Nov 27 23:44:53 2007

Hi the list,

I have an NSView subclass which returns no for -isOpaque (intended). 
When clicking and dragging inside that view, the window moves, which 
is not what I want. The mouseXxxx: methods are overridden, and do not 
call super's. Does someone have a clue on this ?

Thanks,

Raphael