Draw lines with Glow effect in iPad App

Question

I have integrate draw line in my application i have not used OpenGL or any other similar framework.

So now i want to give glow effect to their lines so how

Answer 1

Set the shadow in your graphics context to have a zero size offset, a blur of around 6-10 (change according to taste) and the same colour as your stroke colour. This will give all subsequent drawing a glow effect. The command is

CGContextSetShadowWithColor()

Documented here.