How to draw a small line showing the H/L of X market session? - line

I'm ultra-green on scriptwriting and would love some of your help!
I want to create a simple indicator that is displayed over the bars, having a short horizontal line showing the high/low of a specified timeframe.
Anyone could help me with this script, please?
Much appreciated!
Thanks

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I need this blue line:
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AVFoundation adjusting white balance while focus is close up and background (out-of-focus) is dark

Can anyone please point me in the correct direction or tell me if what I am trying to do is simply not possible?
I'm trying to take a picture of something close up. I am able to lock the focus. That works well. We have found that keeping the torch on while trying to focus and take the picture works best. The issue I cannot seem to resolve is the white balance. If the background is dark, the object I'm trying to focus on is too light. Is there a trick to adjusting the white balance when the item in focus is close up and the background (out of focus) is dark?
I can't provide the code, it's too much. I suppose if necessary I could create a sample project, but my question is probably more conceptual.
Thank you in advance for any help you can provide.
The answer to this question, for those who run across the same issue, is to use a CALayer for an exposeBox and another CALayer for a focusBox. That appeared to do the trick. Of course, I would still like to hear of solutions from others and I'm still curious about controlling the aperture.
Thank you.

How to customize the row in the Table view in the iphone sdk?

I need to customize my table view can anyone help me how to do this.
Actually I am having three sections in my tableview each one has one row and I want to make the third section row as an rounded rectangular of size 50 x 50.
Please guys help me how to do this...!!
Thanks in advance,
Monish.
Manual. Plus, there are a gazillion tutorials online, like this one.