Instance Method


Sets the image’s property to value.


func setProperty(_ property: NSBitmapImageRep.PropertyKey, withValue value: Any?)



A string constant used as a key for an image property. These properties are described in Bitmap image properties.


A value specific to property. If value is nil, the value of the property is cleared.


The properties can affect how the image is read in and saved to file.

See Also

Managing Compression Types

class func getTIFFCompressionTypes(UnsafeMutablePointer<UnsafePointer<NSBitmapImageRep.TIFFCompression>?>, count: UnsafeMutablePointer<Int>)

Returns by indirection an array of all available compression types that can be used when writing a TIFF image.

class func localizedName(forTIFFCompressionType: NSBitmapImageRep.TIFFCompression) -> String?

Returns an autoreleased string containing the localized name for the specified compression type.

func canBeCompressed(using: NSBitmapImageRep.TIFFCompression) -> Bool

Tests whether the receiver can be compressed by the specified compression scheme.

func setCompression(NSBitmapImageRep.TIFFCompression, factor: Float)

Sets the receiver’s compression type and compression factor.

func getCompression(UnsafeMutablePointer<NSBitmapImageRep.TIFFCompression>?, factor: UnsafeMutablePointer<Float>?)

Returns by indirection the receiver’s compression type and compression factor.

func value(forProperty: NSBitmapImageRep.PropertyKey) -> Any?

Returns the value for the specified property.

enum NSBitmapImageRep.TIFFCompression

Constants representing the supported TIFF data-compression schemes.