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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This method produces a dynamically modified version of the color, applying effects that are tuned for the appearance of the current drawing context.

Reenables cursor rectangle management geference the window after a disable Cursor Rects message.

Supporting Dark Mode in Your Interface | Apple Developer Documentation

referdnce Desktop Image Option Key: You can configure all or part of your interface to opt out of a specific appearance. Name Posted when the window will enter version browser mode.

The try to Perform: You can check for the version of the system an app was built against, and if your app is running on an older system, modify its behavior to be more compatible. Name Posted whenever an NSWindow object is tramework to be minimized. Searches for an object that responds to a Services request. Do these constants typically only show up in the version after they are current? Many NSView Controller methods for managing and presenting child controllers are likewise renamed for greater conciseness in Swift by removing redundant occurrences of View Controller.

NSDragging Info NSDragging Info APIs that were previously declared as getter methods are now declared as read-only properties, which means they can now be accessed as properties in Swift, without needing the parenthesized function call syntax.

Name Posted when the Finder deactivated an app. In the aqua appearance, the new materials currently look the same as their corresponding NSColor: Requests the system wait for the specified amount of time before turning off the power or logging out the user. Posted whenever a portion of a nonretained NSWindow object is exposed, whether by being ordered in front of other windows or by other windows being removed from in front of it.


The deepest screen the window is on it may be split over several screens. AppKit now provides formal protocol declarations for sets of methods that were formerly declared as informal protocolswhich are categories ffamework NSObject or some other class.

Name Posted when the window backing properties change. The icon should be a template image. Framewokr Posted after a user session is switched in. Managing Window Visibility and Occlusion State. I’m trying to re-invent Preview. You can use the new content Frzmework Color property to provide a base color for template images and text inside borderless buttons.

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. Implement menus and cursors to facilitate interactions with your app, and use your app’s Dock tile to convey updated information. When you add custom image and color sets to an asset catalog, you can define appearance-sensitive variants to be used when an image is shown in a context with that appearance.

Event Type Mask, until: Appkkit Response Ends a document-modal session and dismisses the specified sheet.

A mechanism for displaying text or images in a view object without the overhead of a full NSView subclass. The button cell that performs as if clicked when the window receives a Return or Enter key event.

Application Kit – Wikipedia

Most of these changes happen automatically, but some might result in calls to your code. This change was made for types with values that pass through the API to drive things like named asset lookup. For example, if you create images using a drawing handler, AppKit calls your handler block in response to an appearance change.

If you don’t specify a value, a default color is used instead. NSRect The area inside the window that is for non-obscured content, in window coordinates. For buttons that look different only while they’re being pushed—including button with types such as NSButton.


Returns the preferred filename extension for the specified Uniform Type Identifier. Name Posted before the machine goes to sleep. Name Posted when the window will exit full screen mode. Three of the new semantic materials use a color tinting effect based on the user’s desktop picture when in Dark mode. NSView Makes key the view that precedes the given view.

Name Posted whenever an NSWindow object is about to open a sheet.

Name Posted whenever an NSWindow object becomes the key window. API Collection Color Represent colors using built-in or custom formats, and give users options for selecting and applying colors. Name Posted before a user session is switched out.

One typical use of this is to floor the value, framfwork check against the values provided in NSApplication. These text fields get the emphasized interior background style by default if they’re inside a selected table row. Bool A Boolean value that indicates whether the toolbar control button is currently displayed.

Application Kit

Other special cases or situations for version checking are discussed in the release notes as appropriate.

A definition of the fundamental behavior for controls, which are specialized views that notify your app of relevant events by using the target-action design pattern. The icon to use for the action in Finder. The app’s process id, as an NSNumber object. Update your apps to use new features, and test your apps against API changes.

Returns the next event matching a given mask.

Handles the save AppleScript command by attempting to save the window and its associated document, if any.