Function

CGColorSpaceCreateDeviceRGB()

Creates a device-dependent RGB color space.

Declaration

func CGColorSpaceCreateDeviceRGB() -> CGColorSpace

Return Value

A device-dependent RGB color space. You are responsible for releasing this object by calling CGColorSpaceRelease. If unsuccessful, returns NULL.

Discussion

Colors in a device-dependent color space are not transformed or otherwise modified when displayed on an output device—that is, there is no attempt to maintain the visual appearance of a color. As a consequence, colors in a device color space often appear different when displayed on different output devices. For this reason, device color spaces are not recommended when color preservation is important.

See Also

Creating Color Spaces

init?(iccBasedNComponents: Int, range: UnsafePointer<CGFloat>?, profile: CGDataProvider, alternate: CGColorSpace?)

Creates a device-independent color space that is defined according to the ICC color profile specification.

init?(indexedBaseSpace: CGColorSpace, last: Int, colorTable: UnsafePointer<UInt8>)

Creates an indexed color space, consisting of colors specified by a color lookup table.

init?(labWhitePoint: UnsafePointer<CGFloat>, blackPoint: UnsafePointer<CGFloat>?, range: UnsafePointer<CGFloat>?)

Creates a device-independent color space that is relative to human color perception, according to the CIE L*a*b* standard.

init?(patternBaseSpace: CGColorSpace?)

Creates a pattern color space.

init?(name: CFString)

Creates a specified type of Quartz color space.

init?(platformColorSpaceRef: UnsafeRawPointer)

Creates a platform-specific color space.

init(iccData: CFTypeRef)

Creates an ICC-based color space using the ICC profile contained in the specified data.

init?(propertyListPlist: CFPropertyList)

Creates a color space from a property list.

func CGColorSpaceCreateDeviceCMYK() -> CGColorSpace

Creates a device-dependent CMYK color space.

func CGColorSpaceCreateDeviceGray() -> CGColorSpace

Creates a device-dependent grayscale color space.

init?(iccProfileData: CFData)

Creates an ICC-based color space using the ICC profile contained in the specified data.

Deprecated

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

Learn more about using Apple's beta software