Function

CGColorGetNumberOfComponents

Returns the number of color components (including alpha) associated with a color.

Declaration

size_t CGColorGetNumberOfComponents(CGColorRef color);

Parameters

color

A color.

Return Value

The number of color components (including alpha) associated with the specified color. This number is one more than the number of components of the color space for the color.

See Also

Getting Information about Core Graphics Colors

CGColorEqualToColor

Indicates whether two colors are equal.

CGColorGetAlpha

Returns the value of the alpha component associated with a color.

CGColorGetColorSpace

Returns the color space associated with a color.

CGColorGetComponents

Returns the values of the color components (including alpha) associated with a color.

CGColorGetPattern

Returns the pattern associated with a color in a pattern color space.

CGColorGetTypeID

Returns the Core Foundation type identifier for a color data type.