Modifying An Existing Image Using Values From Database?

Aug 3, 2010

I have an image (consider the image of a clock). I would like to change the position of the dials depending on values retrieved from database. (This will probably be done using a service which will run every minute or so.) I just want to know how I can change the image (i.e modify the existing image).This is for a dashboard screen. The images would be refreshed every minute to get the latest data.

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[Code]....

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