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[[GSColor]] is a group of C functions that extends [[CGColor]] of [[CoreGraphics.framework|CoreGraphics]]. It provides these tasks: | [[GSColor]] is a group of C functions that extends [[CGColor]] of [[CoreGraphics.framework|CoreGraphics]]. It provides these tasks: | ||
* | * Obtaining the RGBA components of a color. | ||
* Caching common colors. | * Caching common colors. | ||
* Blending two colors together. | * Blending two colors together. | ||
Latest revision as of 06:38, 21 January 2014
GSColor is a group of C functions that extends CGColor of CoreGraphics. It provides these tasks:
- Obtaining the RGBA components of a color.
- Caching common colors.
- Blending two colors together.
Example code
CGColor brownColor = GSColorForSystemColor(kGSBrownColor);
CGColor myBlueColor = GSColorCreateColorWithDeviceRGBA(0.2, 0.3, 0.9, 1);
CGColor blendedColor = GSColorCreateBlendedColorWithFraction(brownColor, myBlueColor, 0.25); // 75% brown + 25% myBlue.
CGFloat blendedRedComponent = GSColorGetRedComponent(blendedColor);
CGColorRelease(myBlueColor);
CGColorRelease(blendedColor);