Core App. Learn about the objects that you use to interact with the system. AppKit in macOS includes new features, as well as API changes and For information about earlier releases, see AppKit Release Notes for macOS Views and Controls. Present and define the interactions for your content.

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A mechanism for displaying text or images in a view object without the overhead of a full NSView subclass. Each time you set the fill or stroke color for drawing, NSColor applies the appropriate color value from the asset catalog.

Sets the zero-based position of the receiver, based on its order from front to back among all visible application windows, to the value specified by index. Some individual headers may also declare an AppKit version number where some bug fix or functionality is available in a given update, for example:.

Bool A Boolean value indicating whether the window frzmework is preserved between application launches. Backing Store Type, defer: If index is out of range, sets the position to the nearest value that is in range. Style types have new identifiers that follow a more modern common-prefix naming convention. If you have an extra-strong need for guaranteed visual atomicity—for example, to ensure atomicity while running the run loop or calling out to client code—use NSAnimation Context tramework.

Int Returns the bits per sample for the specified window depth. Event Type Mask, timeout: Override the system appearance when needed to implement the interface style that makes sense for your app. You can use the new content Tint Color property to provide a base color for template images and text inside borderless buttons. Your app’s views are automatically redrawn when the accent color changes. Name Posted when the window did exit full screen mode.


As part of the system appearance changes in macOS Returns an array of NSRunning Application representing the running apps. Represent colors using built-in or custom formats, and give users options for selecting and applying colors.

Application Kit

Managing the Desktop Image. NSSearch Field NSSearch Field now centers the placeholder text and looking glass icon as a single unit rather than centering the placeholder text first. Name Posted whenever an NSWindow object frameork its status as key window. This new macro supports exporting the affected typedefs as Swift type aliases, as described below.

Name “Inspector”bundle: Do these constants typically only show up in the version after they are current?

Moves the window to the front of the screen list, within its level, and makes it the key window; that is, it shows the window. Post as a guest Name. Reenables the flush method for the window after it was disabled through a previous disable Flushing message. Its new setter is implemented based on the existing API funnel points for adding, inserting, and removing items to allow for potential overrides of those methods.

See Also User Interface. Handles the save AppleScript command by attempting to save the window and its associated document, if any. Modal Response Ends a document-modal session and dismisses the specified sheet. The child View Controllers property is renamed children in Swift.


Window depths should not be made persistent as they will not be the same across systems. Name Posted whenever an Apppkit object is about to close.

As a result, their Swift counterparts are now more concise. NSImage View You can use app,it new content Tint Color property to provide a custom fill color for template images being presented inside borderless image views. The options that may be passed to the window Numbers options: Name Posted when a Spaces change has occurred.

NSResponder The try to Perform: This satisfies most needs for visual atomicity without any extra code. Name Posted whenever an NSWindow object is about to be minimized.

Appkit examples on OSX Working with Window Depths. To check for new features provided by Cocoa frameworks at runtime, look for a given new class or method dynamically. Name Posted when the window entered full screen mode.

AppKit | Apple Developer Documentation

For example, the possible values for NSDate Picker. Takes the window into or out of fullscreen mode. Use a semantic color defined by the NSColor class. The inferred style now depends on whether you set draws Background.