How to implement camera zoomcontrols in my preview class

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Dec 3, 2012 4:09:57 PM via Website

Hi All,

I am trying to implement zoomin and zoomout in my preview class.. It does not give any error but the zoomcontrols donot work. I am trying to solve it from a week and in vain. Need help and tutorials on zoomcontrols or some example code..