How do I assign a delegate to my NSApplication object?
How do I assign a delegate to my NSApplication object?
You can assign a delegate to your NSApplication object. The delegate responds to certain messages on behalf of the object. Some of these messages, such as application (_:openFile:), ask the delegate to perform an action. Another message, applicationShouldTerminate (_:), lets the delegate determine whether the app should be allowed to quit.
What is a keyDown event in JavaScript?
The keydown events happens when a key is pressed down, and then keyup – when it’s released. The key property of the event object allows to get the character, while the code property of the event object allows to get the “physical key code”. For instance, the same key Z can be pressed with or without Shift.
How does NSApplication handle Apple events?
For example, macOS sends Apple events to your app at various times, such as when the app is launched or reopened. NSApplication installs Apple event handlers to handle these events by sending a message to the appropriate object.
What is the best way to delegate event?
Event delegation is really cool! It’s one of the most helpful patterns for DOM events. It’s often used to add the same handling for many similar elements, but not only for that. Put a single handler on the container. In the handler – check the source element event.target.
When should I send notifications to a delegate?
Sent by the default notification center immediately before the application object is initialized. Sent by the default notification center after the application has been launched and initialized but before it has received its first event. Tells the delegate to localize keyboard shortcuts.
How does NSApp work with Window objects?
When a window object receives an NSEvent object from NSApp, it distributes it to the objects in its view hierarchy. NSApplication is also responsible for dispatching certain Apple events received by the app. For example, macOS sends Apple events to your app at various times, such as when the app is launched or reopened.
