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iOS How to make color 10% darker?

P

pashik

macrumors member
Original poster
Jul 16, 2008
43
0
Hi.
I have code to decrease alpha:

Code: 
UIColor* icolor = [_parent color];
if(icolor)
{
 CGFloat alpha = CGColorGetAlpha([icolor CGColor]);
_color = [[icolor colorWithAlphaComponent:alpha*0.75] retain];
}

I found only initWithHue method but it is used to initialize new color and not change current color

How i can make color _color 10% darker?
thanx
 
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