Struct CGImage 

pub struct CGImage { /* private fields */ }

Available on crate feature cg only.

Reference-counted CGImageRef — an immutable bitmap.

Implementations

impl CGImage

pub const unsafe fn from_raw(ptr: *mut c_void) -> Self

Wrap a raw CGImageRef pointer — takes ownership without retaining.

Safety

ptr must be a non-null CGImageRef whose ownership the caller is transferring to the returned CGImage.

pub fn width(&self) -> usize

Width in pixels.

pub fn height(&self) -> usize

Height in pixels.

pub fn bits_per_component(&self) -> usize

Bits per component (8, 16, 32).

pub fn bits_per_pixel(&self) -> usize

Bits per pixel.

pub fn bytes_per_row(&self) -> usize

Bytes per row.

pub fn save_png<P: AsRef<Path>>(&self, path: P) -> Result<()>

Save the image as a PNG file.

Errors

Returns an I/O error if the path contains an interior NUL byte or if the underlying ImageIO export fails.

pub const fn as_ptr(&self) -> *mut c_void

Raw CGImageRef pointer.

Trait Implementations

impl Clone for CGImage

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Drop for CGImage

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl Send for CGImage

impl Sync for CGImage