I'm trying to draw a shadow under the bottom edge of a UIView in Cocoa Touch. I understand that I should use CGContextSetShadow() to draw the shadow, but the Quartz 2D programming guide is a little vague: Save the graphics state. Call the function CGContextSetShadow, passing the appropriate values. Perform all the drawing to which you want to apply shadows. Restore the graphics state I've tried th
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