Hello, I want to subclass NSDocumentController, but I could not find the information in Apple document how to subclass. According to ChatGPT, it can be instantiated by [MyDocumentController sharedDocumentController]; before NSApplicationMain() as the following code. It seems working well in my test environment. int main(int argc, const char * argv[]) { [MyDocumentController sharedDocumentController]; NSApplicationMain(argc, argv); } But, I am not sure whether it is officially correct to instantiate so early (before calling NSApplicationMain). Is there any official information what is correct way to instantiate subclass of NSDocumentController?

Hi There, I have to achieve following scenario Track system event on macosx for shutdown and restart and update one plist with same event via launchAgent I have tried following code on launchAgent class MyAgent { init() { let notificationCenter = NSWorkspace.shared.notificationCenter // Register for system shutdown notification notificationCenter.addObserver(self, selector: #selector(handleNotification(_:)), name: NSWorkspace.willPowerOffNotification, object: nil) RunLoop.current.run() } @objc func handleNotification(_ notification: Notification) { var logMessage = "" switch notification.name { case NSWorkspace.willPowerOffNotification: os_log("System is going to shut down at", log: log, type: .default) updatePlistFile(event: "shut down") let fileName = "example.txt" let content = "shut down" createAndWriteFile(fileName: fileName, content: content) logMessage = "System is going to shut down at \(Date())\n" } } } loaded the agent, and tried to restart device, I can't see as it is coming to handleNotification Same code is working fine from sample application but not from launchAgent Is there any restriction is there for NSWorkspace, if is that so, how to track shutdown/restart event from launchAgent or LaunchDaemon Any help will be appreciate

In the recent MacOS Sequoia Beta 3 NSTextAttachment initialized with custom data and an Image cell as attachmentCell are shown as a file icon istead of the image cell. I am creating a NSAttributedString and showing it in NSTextView like this: NSTextAttachment *attachment = [[NSTextAttachment alloc] initWithData:[text dataUsingEncoding:NSUTF8StringEncoding] ofType:nil]; attachment.attachmentCell = [[NSTextAttachmentCell alloc] initImageCell:img]; NSMutableAttributedString *res = [[NSMutableAttributedString alloc] initWithAttributedString:[NSAttributedString attributedStringWithAttachment:attachment]]; ...

When using the new ‘addSymbolEffect’ effect method on NSImageView with the ‘.rotate.byLayer’ parameter with an applicable SF Symbol 6 symbol, the resulting animation is not completely as expected, to say it mildly. This is the code line I use: imageView.addSymbolEffect(.rotate.byLayer, options: .repeat(.continuous), animated: true) The correct layer rotates around the correct anchor point, but the whole image is moving up and down. The same code with the same symbol in iOS 18 beta runs perfectly. Does anyone know how to get this new rotate API correctly working in macOS 15 beta? In case an Apple engineer reads this: FB13916874 contains example projects for macOS (wobbling rotation) and iOS (perfect rotation), and a screen recording what I see in macOS 15 beta.

Is there any way to get dock size? I got Dock Window using CGWindowListCopyWindowInfo. But I found its frame covers my entire screen. Same promble as Notification Center. Any way to get their size?

In Monterey, when a user was at the top of a ScrollView implemented inside of a NSHostingController's view (that was itself embedded in a window with a NSToolbar), the window's toolbar background would be hidden until the user scrolled from the top. In Ventura, this behavior is different, with the toolbar's background visible all of the time unless a traditional NSScrollView is used (which means no SwiftUI). Is there the ability to change this behavior within SwiftUI some how now?

I have a NSRulerView with a vertical orientation. It works fine from macOS 10.13 to 11.x. In macOS Monterey (12.2.1 here), the ruler view is not receiving drawHashMarksAndLabelsInRect: messages when the associated NSTextView is scrolled vertically. When the parent NSScrollView is resized, the ruler view is correctly refreshed on all macOS versions. [Q] Is it a known bug in macOS Monterey?

Hi, I'm trying to make a weather menu bar app, and I want to have it so that the icon of the app in the menu changes with the actual weather, but the icon isn't showing up. There is still a space in the menu bar where I can click and open the app, it's just that the icon has disappeared. Any ideas to fix it?

Hi, I have an existing AppKit-based Mac app that I have been working on for a few years. For a new feature, I wanted to have the app opened by a different app, so I setup the URL scheme under CFBundleURLTypes in my Info.plist, and adopted this delegate callback:   - (void)application: (NSApplication *)application openURLs:(nonnull NSArray<NSURL *> *)urls Now when I invoke the URL from the 2nd app, it opens my app correctly, BUT this delegate method isn't called. What's interesting is that if I make a totally new app with a URL scheme and adopt this delegate method, it gets called without a problem! SO what about my original project could be responsible for this 'opensURLs' method to not be called? I've been searching for a solution for a couple of days without any luck. The macOS app's target has a Deployment Target of 10.15 and I'm running this on macOS12.0 with Xcode 13.