How i change the color of pagination dots of UIPageControl?

In this link the sample code is given.But it shows 3 errors for me...

1'st ERROR:

Line:CGRect currentBounds = self.bounds;

Error:requst for member 'bounds' in something not a structure or union

Method:-(void)drawRect:

2nd Err: same error with same line in touchesBegan method.

3rd Err:@protocol PageControlDelegate

@optional

• (void)pageControlPageDidChange:(PageControl *)pageControl;

@end

Error:Expected ')' before 'PageControl' .These are the three errors occurs for me...Please help me out to solve this..

I want to change the pagecontrol indicator(dot) color...

Thanks & Regards, Renuga