Karthik,

Call device.touch(x,y,'DOWN') event - this should send the touch down
event.
Call device.drag((x,y), (x+20, y), 0.25, 20) This event should drag
the neighboring pixel..

If the previous event is not cancelled then it should be able to zoom
the picture or whatever drawn on the surface...
I am not sure about it.. Will test and let you know.

Best Regards,
Vinayak Kolagi

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