Trait MTLDrawable 

pub unsafe trait MTLDrawable: NSObjectProtocol {
    // Provided methods
    fn present(&self)
       where Self: Sized + Message { ... }
    fn presentAtTime(&self, presentation_time: CFTimeInterval)
       where Self: Sized + Message { ... }
    fn presentAfterMinimumDuration(&self, duration: CFTimeInterval)
       where Self: Sized + Message { ... }
    unsafe fn addPresentedHandler(&self, block: MTLDrawablePresentedHandler)
       where Self: Sized + Message { ... }
    fn presentedTime(&self) -> CFTimeInterval
       where Self: Sized + Message { ... }
    fn drawableID(&self) -> NSUInteger
       where Self: Sized + Message { ... }
}

Available on crate feature MTLDrawable only.

All “drawable” objects (such as those coming from CAMetalLayer) are expected to conform to this protocol

See also Apple’s documentation

Provided Methods

fn present(&self)

where Self: Sized + Message,

fn presentAtTime(&self, presentation_time: CFTimeInterval)

where Self: Sized + Message,

Available on crate feature objc2-core-foundation only.

fn presentAfterMinimumDuration(&self, duration: CFTimeInterval)

where Self: Sized + Message,

Available on crate feature objc2-core-foundation only.

Present this drawable while setting a minimum duration in seconds before allowing this drawable to appear on the display.

Parameter duration: Duration in seconds before this drawable is allowed to appear on the display

unsafe fn addPresentedHandler(&self, block: MTLDrawablePresentedHandler)

where Self: Sized + Message,

Available on crate feature block2 only.

Add a block to be called when this drawable is presented on screen.

Safety

block must be a valid pointer.

fn presentedTime(&self) -> CFTimeInterval

where Self: Sized + Message,

Available on crate feature objc2-core-foundation only.

The host time that this drawable was presented on screen.

Returns 0 if a frame has not been presented or has been skipped.

fn drawableID(&self) -> NSUInteger

where Self: Sized + Message,

The monotonically incremented ID for all MTLDrawable objects created from the same CAMetalLayer object.

The value starts from 0.

Trait Implementations

impl ProtocolType for dyn MTLDrawable

const NAME: &'static str = "MTLDrawable"

The name of the Objective-C protocol that this type represents.

fn protocol() -> Option<&'static AnyProtocol>

Get a reference to the Objective-C protocol object that this type represents.

impl<T> ImplementedBy<T> for dyn MTLDrawable

where T: ?Sized + Message + MTLDrawable,

Implementations on Foreign Types

impl<T> MTLDrawable for ProtocolObject<T>

where T: ?Sized + MTLDrawable,

Implementors