Struct CGImageRef

pub struct CGImageRef(/* private fields */);

A borrowed reference to a CGImage.

Implementations

impl CGImageRef

pub fn width(&self) -> usize

pub fn height(&self) -> usize

pub fn bits_per_component(&self) -> usize

pub fn bits_per_pixel(&self) -> usize

pub fn bytes_per_row(&self) -> usize

pub fn color_space(&self) -> CGColorSpace

pub fn data(&self) -> CFData

Returns the raw image bytes wrapped in CFData. Note, the returned CFData owns the underlying buffer.

pub fn cropped(&self, rect: CGRect) -> Option<CGImage>

Returns a cropped image. If the rect specifies a rectangle which lies outside of the image bounds, the None is returned.

Trait Implementations

impl ForeignTypeRef for CGImageRef

type CType = CGImage

The raw C type.

unsafe fn from_ptr<'a>(ptr: *mut Self::CType) -> &'a Self

Constructs a shared instance of this type from its raw type.

unsafe fn from_ptr_mut<'a>(ptr: *mut Self::CType) -> &'a mut Self

Constructs a mutable reference of this type from its raw type.

fn as_ptr(&self) -> *mut Self::CType

Returns a raw pointer to the wrapped value.

impl ToOwned for CGImageRef

type Owned = CGImage

The resulting type after obtaining ownership.

fn to_owned(&self) -> CGImage

Creates owned data from borrowed data, usually by cloning.

fn clone_into(&self, target: &mut Self::Owned)

Uses borrowed data to replace owned data, usually by cloning.