[Kwintv] QtVision class

[George Staikos]

What do you think of making the QtVision class a singleton?  I don't see a) 
how it could work in multiple instances in any sane way, and b) why we would 
ever need more than one in an app anyways.  The goal is to not be KUnique so 
multiple tuners are still usable without multiple QtVision instances.  I 
think being singleton would simplify lots of code, and make it easier to get 
at the driver from various places without having to proxy it along or access 
it via dcop.


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George Staikos