CIContext Class

Definition

Namespace:: CoreImage

Assembly:: Microsoft.iOS.dll

Assembly:: Microsoft.MacCatalyst.dll

Assembly:: Microsoft.macOS.dll

Assembly:: Microsoft.tvOS.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Orchestrates the rendering of a CIFilter pipeline.

[Foundation.Register("CIContext", true)]
public class CIContext : Foundation.NSObject

[<Foundation.Register("CIContext", true)>]
type CIContext = class
    inherit NSObject

Inheritance: Object

NSObject
CIContext

Attributes: RegisterAttribute

Remarks

The CIContext class is used to orchestrate the rendering of a pipeline of filters into one of the supported output surfaces.

The CGContext can render its results into a CoreGraphics CGImage, render directly into the screen with one of the various Draw methods, into a CoreVideo CVPixelBuffer or into a CoreGraphics context.

Constructors

Name	Description
CIContext()
CIContext(CIContextOptions)	Creates a new Core Image context with the specified `options`.
CIContext(NativeHandle)	A constructor used when creating managed representations of unmanaged objects. Called by the runtime.
CIContext(NSObjectFlag)	Constructor to call on derived classes to skip initialization and merely allocate the object.

Properties

Name	Description
AccessibilityAttributedUserInputLabels	(Inherited from NSObject)
AccessibilityRespondsToUserInteraction	(Inherited from NSObject)
AccessibilityTextualContext	(Inherited from NSObject)
AccessibilityUserInputLabels	(Inherited from NSObject)
Class	(Inherited from NSObject)
ClassHandle	The Objective-C class handle for this class.
DebugDescription	(Inherited from NSObject)
Description	(Inherited from NSObject)
ExposedBindings	(Inherited from NSObject)
Handle	Handle (pointer) to the unmanaged object representation. (Inherited from NSObject)
InputImageMaximumSize	Gets the maximum allowed input image size.
IsDirectBinding	(Inherited from NSObject)
IsProxy	(Inherited from NSObject)
MemoryLimit	Obsolete. Represents the value associated with the constant 'kCIContextMemoryLimit'.
OfflineGPUCount
OutputImageMaximumSize	Gets the maximum allowed output image size.
RetainCount	(Inherited from NSObject)
Self	(Inherited from NSObject)
Superclass	(Inherited from NSObject)
SuperHandle	Handle used to represent the methods in the base class for this NSObject. (Inherited from NSObject)
WorkingColorSpace	The working CGColorSpace.
WorkingFormat	The working pixel format.
Zone	(Inherited from NSObject)

Methods

Name	Description
AddObserver(NSObject, NSString, NSKeyValueObservingOptions, IntPtr)	(Inherited from NSObject)
AddObserver(NSObject, String, NSKeyValueObservingOptions, IntPtr)	(Inherited from NSObject)
AddObserver(NSString, NSKeyValueObservingOptions, Action<NSObservedChange>)	Registers an object for being observed externally using an arbitrary method. (Inherited from NSObject)
AddObserver(String, NSKeyValueObservingOptions, Action<NSObservedChange>)	Registers an object for being observed externally using an arbitrary method. (Inherited from NSObject)
AwakeFromNib()	(Inherited from NSObject)
BeginInvokeOnMainThread(Action)	(Inherited from NSObject)
BeginInvokeOnMainThread(Selector, NSObject)	Invokes asynchrously the specified code on the main UI thread. (Inherited from NSObject)
Bind(NSString, NSObject, String, NSBindingOptions)	(Inherited from NSObject)
Bind(NSString, NSObject, String, NSDictionary)	(Inherited from NSObject)
CalculateHdrStats(CGImage)
CalculateHdrStats(CIImage)
CalculateHdrStats(CVPixelBuffer)
CalculateHdrStats(IOSurface)
ClearCaches()	Frees data in the cache and runs the garbage collector.
CommitEditing()	(Inherited from NSObject)
CommitEditing(NSObject, Selector, IntPtr)	(Inherited from NSObject)
ConformsToProtocol(NativeHandle)	(Inherited from NSObject)
Copy()	(Inherited from NSObject)
Create()	Creates a new CIContext with default options.
Create(IMTLCommandQueue, NSDictionary<NSString,NSObject>)
Create(IMTLCommandQueue)
CreateCGImage(CIImage, CGRect, CIFormat, CGColorSpace, Boolean)
CreateCGImage(CIImage, CGRect, CIFormat, CGColorSpace)
CreateCGImage(CIImage, CGRect, Int32, CGColorSpace, Boolean, Boolean)
CreateCGImage(CIImage, CGRect, Int32, CGColorSpace)
CreateCGImage(CIImage, CGRect)	Creates a new CGImage from the `fromRectangle` region of `image`.
CreateCGLayer(CGSize)
DangerousAutorelease()	Calls the 'autorelease' selector on this object. (Inherited from NSObject)
DangerousRelease()	Calls the 'release' selector on this object. (Inherited from NSObject)
DangerousRetain()	Calls the 'retain' selector on this object. (Inherited from NSObject)
DidChange(NSKeyValueChange, NSIndexSet, NSString)	(Inherited from NSObject)
DidChange(NSString, NSKeyValueSetMutationKind, NSSet)	(Inherited from NSObject)
DidChangeValue(String)	(Inherited from NSObject)
Dispose()	Releases the resources used by the NSObject object. (Inherited from NSObject)
Dispose(Boolean)	Releases the resources used by the NSObject object. (Inherited from NSObject)
DoesNotRecognizeSelector(Selector)	(Inherited from NSObject)
DrawImage(CIImage, CGPoint, CGRect)	Developers should not use this deprecated method. Developers should use 'DrawImage (image, CGRect, CGRect)' instead.
DrawImage(CIImage, CGRect, CGRect)	Draws the `fromRectangle` portion of `image` into the rectangle specified by `inRectangle`.
Equals(NSObject)	(Inherited from NSObject)
Equals(Object)	(Inherited from NSObject)
FromContext(CGContext, CIContextOptions)	Creates a new CIContext from an existing one, along with the provided
FromContext(CGContext)	Creates a new CIContext from an existing one.
FromContext(EAGLContext, CIContextOptions)	Creates a CIContext based on the `eaglContext`, with the specified `options`.
FromContext(EAGLContext, NSDictionary)	Creates a new CIContext from the provided `eaglContext` and by using the options that are named in `dictionary`.
FromContext(EAGLContext)	Creates a new CIContext from the provided `eaglContext`.
FromMetalDevice(IMTLDevice, CIContextOptions)	Creates a new CIContext from the provided Metal device, along with the specified context.
FromMetalDevice(IMTLDevice, NSDictionary<NSString,NSObject>)	Creates a new CIContext from the provided Metal `device`, applying the specified options.
FromMetalDevice(IMTLDevice)	Creates a new CIContext from the provided Metal device.
FromOfflineGpu(Int32)
FromOptions(CIContextOptions)	Creates a new CIContext from the options that are named in `options`.
GetBindingInfo(NSString)	(Inherited from NSObject)
GetBindingOptionDescriptions(NSString)	(Inherited from NSObject)
GetBindingValueClass(NSString)	(Inherited from NSObject)
GetDictionaryOfValuesFromKeys(NSString[])	(Inherited from NSObject)
GetHashCode()	Generates a hash code for the current instance. (Inherited from NSObject)
GetMethodForSelector(Selector)	(Inherited from NSObject)
GetNativeHash()	(Inherited from NSObject)
GetOpenEXRRepresentation(CIImage, NSDictionary<NSString,NSObject>, NSError)
Init()	(Inherited from NSObject)
InitializeHandle(NativeHandle, String)	(Inherited from NSObject)
InitializeHandle(NativeHandle)	(Inherited from NSObject)
Invoke(Action, Double)	(Inherited from NSObject)
Invoke(Action, TimeSpan)	(Inherited from NSObject)
InvokeOnMainThread(Action)	(Inherited from NSObject)
InvokeOnMainThread(Selector, NSObject)	Invokes synchrously the specified code on the main UI thread. (Inherited from NSObject)
IsEqual(NSObject)	(Inherited from NSObject)
IsKindOfClass(Class)	(Inherited from NSObject)
IsMemberOfClass(Class)	(Inherited from NSObject)
MarkDirty()	Promotes a regular peer object (IsDirectBinding is true) into a toggleref object. (Inherited from NSObject)
MutableCopy()	(Inherited from NSObject)
ObjectDidEndEditing(NSObject)	(Inherited from NSObject)
ObserveValue(NSString, NSObject, NSDictionary, IntPtr)	(Inherited from NSObject)
PerformSelector(Selector, NSObject, Double, NSString[])	(Inherited from NSObject)
PerformSelector(Selector, NSObject, Double)	(Inherited from NSObject)
PerformSelector(Selector, NSObject, NSObject)	(Inherited from NSObject)
PerformSelector(Selector, NSObject)	(Inherited from NSObject)
PerformSelector(Selector, NSThread, NSObject, Boolean, NSString[])	(Inherited from NSObject)
PerformSelector(Selector, NSThread, NSObject, Boolean)	(Inherited from NSObject)
PerformSelector(Selector)	(Inherited from NSObject)
PrepareForInterfaceBuilder()	(Inherited from NSObject)
ReclaimResources()
RemoveObserver(NSObject, NSString, IntPtr)	(Inherited from NSObject)
RemoveObserver(NSObject, NSString)	(Inherited from NSObject)
RemoveObserver(NSObject, String, IntPtr)	(Inherited from NSObject)
RemoveObserver(NSObject, String)	(Inherited from NSObject)
Render(CIImage, CVPixelBuffer, CGRect, CGColorSpace)
Render(CIImage, CVPixelBuffer)	Renders `image` to `buffer`.
Render(CIImage, IMTLTexture, IMTLCommandBuffer, CGRect, CGColorSpace)
Render(CIImage, IOSurface, CGRect, CGColorSpace)
RenderToBitmap(CIImage, IntPtr, IntPtr, CGRect, Int32, CGColorSpace)
RespondsToSelector(Selector)	(Inherited from NSObject)
SetNilValueForKey(NSString)	(Inherited from NSObject)
SetValueForKey(NSObject, NSString)	(Inherited from NSObject)
SetValueForKeyPath(NativeHandle, NSString)	(Inherited from NSObject)
SetValueForKeyPath(NSObject, NSString)	(Inherited from NSObject)
SetValueForUndefinedKey(NSObject, NSString)	(Inherited from NSObject)
SetValuesForKeysWithDictionary(NSDictionary)	(Inherited from NSObject)
ToString()	Returns a string representation of the value of the current instance. (Inherited from NSObject)
Unbind(NSString)	(Inherited from NSObject)
ValueForKey(NSString)	(Inherited from NSObject)
ValueForKeyPath(NSString)	(Inherited from NSObject)
ValueForUndefinedKey(NSString)	(Inherited from NSObject)
WillChange(NSKeyValueChange, NSIndexSet, NSString)	(Inherited from NSObject)
WillChange(NSString, NSKeyValueSetMutationKind, NSSet)	(Inherited from NSObject)
WillChangeValue(String)	(Inherited from NSObject)
WriteOpenExrRepresentation(CIImage, NSUrl, NSDictionary<NSString,NSObject>, NSError)

Extension Methods

Name	Description
ObjectDidBeginEditing(NSObject, INSEditor)
ObjectDidEndEditing(NSObject, INSEditor)
GetValidModes(NSObject, NSFontPanel)
ValidateToolbarItem(NSObject, NSToolbarItem)
BrowserAccessibilityDeleteTextAtCursor(NSObject, IntPtr)
BrowserAccessibilityInsertTextAtCursor(NSObject, String)
GetAccessibilityLineEndPositionFromCurrentSelection(NSObject)
GetAccessibilityLineRangeForPosition(NSObject, IntPtr)
GetAccessibilityLineStartPositionFromCurrentSelection(NSObject)
GetBrowserAccessibilityAttributedValue(NSObject, NSRange)
GetBrowserAccessibilityContainerType(NSObject)
GetBrowserAccessibilityCurrentStatus(NSObject)
GetBrowserAccessibilityHasDomFocus(NSObject)
GetBrowserAccessibilityIsRequired(NSObject)
GetBrowserAccessibilityPressedState(NSObject)
GetBrowserAccessibilityRoleDescription(NSObject)
GetBrowserAccessibilitySelectedTextRange(NSObject)
GetBrowserAccessibilitySortDirection(NSObject)
GetBrowserAccessibilityValue(NSObject, NSRange)
SetBrowserAccessibilityContainerType(NSObject, BEAccessibilityContainerType)
SetBrowserAccessibilityCurrentStatus(NSObject, String)
SetBrowserAccessibilityHasDomFocus(NSObject, Boolean)
SetBrowserAccessibilityIsRequired(NSObject, Boolean)
SetBrowserAccessibilityPressedState(NSObject, BEAccessibilityPressedState)
SetBrowserAccessibilityRoleDescription(NSObject, String)
SetBrowserAccessibilitySelectedTextRange(NSObject, NSRange)
SetBrowserAccessibilitySortDirection(NSObject, String)
GetDepthBlurEffectFilter(CIContext, CIImage, CIImage, CIImage, CIImage, CIImage, CIImage, CGImagePropertyOrientation, NSDictionary)
GetDepthBlurEffectFilter(CIContext, CIImage, CIImage, CIImage, CIImage, CGImagePropertyOrientation, NSDictionary)
GetDepthBlurEffectFilter(CIContext, CIImage, CIImage, CIImage, CGImagePropertyOrientation, NSDictionary)
GetDepthBlurEffectFilter(CIContext, NSData, NSDictionary)
GetDepthBlurEffectFilter(CIContext, NSUrl, NSDictionary)
PrepareRender(CIContext, CIImage, CGRect, CIRenderDestination, CGPoint, NSError)
StartTaskToClear(CIContext, CIRenderDestination, NSError)
StartTaskToRender(CIContext, CIImage, CGRect, CIRenderDestination, CGPoint, NSError)
StartTaskToRender(CIContext, CIImage, CIRenderDestination, NSError)
GetHeif10Representation(CIContext, CIImage, CGColorSpace, CIImageRepresentationOptions, NSError)
GetHeif10Representation(CIContext, CIImage, CGColorSpace, NSDictionary, NSError)
GetHeifRepresentation(CIContext, CIImage, CIFormat, CGColorSpace, CIImageRepresentationOptions)
GetHeifRepresentation(CIContext, CIImage, CIFormat, CGColorSpace, NSDictionary)
GetJpegRepresentation(CIContext, CIImage, CGColorSpace, CIImageRepresentationOptions)
GetJpegRepresentation(CIContext, CIImage, CGColorSpace, NSDictionary)	Applies the processing of this context to the `image` and returns a JPEG image of the result.
GetPngRepresentation(CIContext, CIImage, CIFormat, CGColorSpace, CIImageRepresentationOptions)
GetPngRepresentation(CIContext, CIImage, CIFormat, CGColorSpace, NSDictionary)
GetTiffRepresentation(CIContext, CIImage, CIFormat, CGColorSpace, CIImageRepresentationOptions)
GetTiffRepresentation(CIContext, CIImage, CIFormat, CGColorSpace, NSDictionary)	Applies the processing of this context to the `image` and returns a TIFF image of the result.
WriteHeif10Representation(CIContext, CIImage, NSUrl, CGColorSpace, CIImageRepresentationOptions, NSError)
WriteHeif10Representation(CIContext, CIImage, NSUrl, CGColorSpace, NSDictionary, NSError)
WriteHeifRepresentation(CIContext, CIImage, NSUrl, CIFormat, CGColorSpace, CIImageRepresentationOptions, NSError)
WriteHeifRepresentation(CIContext, CIImage, NSUrl, CIFormat, CGColorSpace, NSDictionary, NSError)
WriteJpegRepresentation(CIContext, CIImage, NSUrl, CGColorSpace, CIImageRepresentationOptions, NSError)
WriteJpegRepresentation(CIContext, CIImage, NSUrl, CGColorSpace, NSDictionary, NSError)	Applies the processing of this context to the `image` and writes a JPEG image of the result to `url`.
WritePngRepresentation(CIContext, CIImage, NSUrl, CIFormat, CGColorSpace, CIImageRepresentationOptions, NSError)
WritePngRepresentation(CIContext, CIImage, NSUrl, CIFormat, CGColorSpace, NSDictionary, NSError)
WriteTiffRepresentation(CIContext, CIImage, NSUrl, CIFormat, CGColorSpace, CIImageRepresentationOptions, NSError)
WriteTiffRepresentation(CIContext, CIImage, NSUrl, CIFormat, CGColorSpace, NSDictionary, NSError)	Applies the processing of this context to the `image` and writes a TIFF image of the result to `url`.
ProvideImageData(NSObject, IntPtr, UIntPtr, UIntPtr, UIntPtr, UIntPtr, UIntPtr, NSObject)
ProvideImageToMTLTexture(NSObject, IMTLTexture, IMTLCommandBuffer, UIntPtr, UIntPtr, UIntPtr, UIntPtr, NSObject)
SetSharedObservers(NSObject, NSKeyValueSharedObserversSnapshot)
GetDebugDescription(INSObjectProtocol)
GetHandle(INativeObject)
GetNonNullHandle(INativeObject, String)
AcceptsPreviewPanelControl(NSObject, QLPreviewPanel)
BeginPreviewPanelControl(NSObject, QLPreviewPanel)
EndPreviewPanelControl(NSObject, QLPreviewPanel)
GetAccessibilityCustomRotors(NSObject)	Gets the array of UIAccessibilityCustomRotor objects appropriate for `this` object.
SetAccessibilityCustomRotors(NSObject, UIAccessibilityCustomRotor[])	Sets the array of UIAccessibilityCustomRotor objects appropriate for `this` object.
AccessibilityHitTest(NSObject, CGPoint, UIEvent)
GetAccessibilityNextTextNavigationElement(NSObject)
GetAccessibilityNextTextNavigationElementBlock(NSObject)
GetAccessibilityPreviousTextNavigationElement(NSObject)
GetAccessibilityPreviousTextNavigationElementBlock(NSObject)
SetAccessibilityNextTextNavigationElement(NSObject, NSObject)
SetAccessibilityNextTextNavigationElementBlock(NSObject, AXObjectReturnBlock)
SetAccessibilityPreviousTextNavigationElement(NSObject, NSObject)
SetAccessibilityPreviousTextNavigationElementBlock(NSObject, AXObjectReturnBlock)
GetAccessibilityTextInputResponder(NSObject)
GetAccessibilityTextInputResponderHandler(NSObject)
SetAccessibilityTextInputResponder(NSObject, IUITextInput)
SetAccessibilityTextInputResponderHandler(NSObject, UITextInputReturnHandler)

Applies to

Share via