How to make a custom UIPageControl with cicles instead of dots

I want page Control with circles how to do this i have using A page Control now but it has d开发者_StackOverflow中文版ots instead of circles

you have to create custom page scroll. for this you should refer this question. hope you will get idea.

also some useful links :

(1) http://www.onidev.com/2009/12/02/customisable-uipagecontrol/

(2) http://worldlinkdevteam.motionforum.net/t10-designing-custom-uipagecontrol