I just noticed that +[CIPlugIn loadAllPlugIns] has been deprecated since 10.15 (OK, I'm a little slow), along with all the other CIPlugIn methods except for loadNonExecutablePlugIns. I don't see any documentation about what I'm supposed to do instead. What's the deal?

Why is it that I can open a symbolic link, but can't read it? I am aware that I can get the contents of a symlink file using the readlink function, but still, it seems like this ought to work. Here's example code: #include <iostream> #include <unistd.h> #include <fcntl.h> int main(int argc, const char * argv[]) { // Make sure there is not already a file where we will create the link unlink( "/tmp/ReadSymLink-test" ); // Create a symlink int result = symlink( "../usr", "/tmp/ReadSymLink-test"); int err; if (result == 0) { std::cout << "created file /tmp/ReadSymLink-test\n"; } else { err = errno; std::cerr << "symlink failed with error " << err << "\n"; return 1; } // Open it for reading int fd = open( "/tmp/ReadSymLink-test", O_RDONLY | O_SYMLINK ); if (fd < 0) { err = errno; std::cerr << "open failed with error " << err << "\n"; return 2; } std::cout << "open succeeded\n"; // and read it char buffer[200]; ssize_t bytesRead = read( fd, buffer, sizeof(buffer) ); if (bytesRead < 0) { err = errno; std::cerr << "read failed with error " << err << "\n"; return 2; } else { buffer[ bytesRead ] = '\0'; std::cout << "read of symlink result: " << buffer << "\n"; } return 0; } The result, running under Sonoma 14.2 (beta) is created file /tmp/ReadSymLink-test open succeeded read failed with error 1

I replied to this thread a couple of hours ago, but the recent post list, sorted by Last Update, does not show it, and my watch list shows an update date based on a previous reply.

I want to be able to simulate mouse clicks, moves, and drags within my own app. I can do that using CGEventPost, but that requires accessibility permission, which seems silly to require when I'm not trying to control another app. An alternative is to create mouse NSEvents and use -[NSApplication postEvent:atStart:]. By that approach, I am able to click a button and watch it highlight and unhighlight, but the mouse cursor never moves and the pressedMouseButtons class property of NSEvent never changes. Is there a better way to simulate mouse events without requiring accessibility permission?

As an exercise in learning Swift, I rewrote a toy C++ command line tool in Swift. After switching to an UnsafeRawBufferPointer in a critical part of the code, the Release build of the Swift version was a little faster than the Release build of the C++ version. But the Debug build took around 700 times as long. I expect a Debug build to be somewhat slower, but by that much? Here's the critical part of the code, a function that gets called many thousands of times. The two string parameters are always 5-letter words in plain ASCII (it's related to Wordle). By the way, if I change the loop ranges from 0..<5 to [0,1,2,3,4], then it runs about twice as fast in Debug, but twice as slow in Release. func Score( trial: String, target: String ) -> Int { var score = 0 withUnsafeBytes(of: trial.utf8) { rawTrial in withUnsafeBytes(of: target.utf8) { rawTarget in for i in 0..<5 { let trial_i = rawTrial[i]; if trial_i == rawTarget[i] // strong hit { score += kStrongScore } else // check for weak hit { for j in 0..<5 { if j != i { let target_j = rawTarget[j]; if (trial_i == target_j) && (rawTrial[j] != target_j) { score += kWeakScore break } } } } } } } return score }

If I use [UTType exportedTypeWithIdentifier:] to get one of the types in my app's Info.plist, and then ask for the preferredFilenameExtension of that UTType, I get the wrong extension, i.e., not the first file extension listed for that UTI in my Info.plist. Is this one of those situations where AppKit is looking in some database that can get out of sync with what's actually in the Info.plist?

I made a new app icon with Icon Composer, and added it to my Xcode project. In the built app, I see AppIcon.icon next to the old AppIcon.icns. But Tahoe is not showing the new icon. Is this because Tahoe has cached the old icon somewhere, and if so, is there some way to make it refresh?

I have some working Objective-C code that displays a WKWebView and allows printing that content. However, it uses the method -[WKWebView printOperationWithPrintInfo:], which the documentation says is deprecated as of macOS 10.15. However, it doesn't say why this method is deprecated, or what the recommended replacement is. The declaration in WKWebView.h does not even indicate that the method is deprecated. But as an alternative, I tried using +[NSPrintOperation printOperationWithView:printInfo]. Doing it that way just prints a blank page. So, should I keep doing it the doubtful way?

When I tried turning on ENABLE_ENHANCED_SECURITY = YES in an Xcode 26.1 beta project, I got a bunch of "module file not found" errors like this: While building module 'CoreServices': In file included from <module-includes>:1: /Applications/Xcode26.1-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/CoreServices.framework/Headers/CoreServices.h:19:2: fatal error: module file '/Volumes/Work/Xcode-derived/PlainCalc3-gixjfymjqamwmufdwcseugzjehqa/Build/Intermediates.noindex/ExplicitPrecompiledModules/CoreFoundation-5POB3HW0BHFSPWLD7DOOKAULM.pcm' not found: module file not found 19 | #include <CoreFoundation/CoreFoundation.h> | ^ I tried deleting the project's derived data. Is this a known issue?

I've recently switched from using Xcode 15 under Ventura to using Xcode 26 under Sequoia on an Intel-CPU Mac. This is a macOS project that uses a legacy build location, and the sources are C++ and Objective-C. For every source being compiled, I get a clang warning "no such include directory" for these 4 directories: $BUILD_DIR/Debug/include $BUILD_DIR/SBEngineV4.build/Debug/V4 Dual SBEngine.build/DerivedSources-normal/x86_64 $BUILD_DIR/SBEngineV4.build/Debug/V4 Dual SBEngine.build/DerivedSources/x86_64 $BUILD_DIR/SBEngineV4.build/Debug/V4 Dual SBEngine.build/DerivedSources I can't figure out where it's getting those directories. I added a Run Script build phase that says echo $HEADER_SEARCH_PATHS, and the first path that reports is the $BUILD_DIR/Debug/include path, yet I don't see that when I look at the header search paths in the target build settings. I tried deleting all the derived data. I tried Xcode 26.0.1 and 26.1 beta 2.

The documentation of the NSPopover property hasFullSizeContent says that when it's true, you should Use the safeAreaLayoutGuide of the contentViewController view to ensure that your content is fully visible and doesn’t become clipped when displayed. I can do that by adding auto-layout constraints programmatically, but is there a way to do it in the xib? When I googled it, the AI summary begins To use safe areas in a Mac XIB (Interface Builder), enable the "Use Safe Area Layout Guides" checkbox in the File Inspector for your view but I have not found any non-AI indications that such a checkbox exists for macOS. (I'm using Xcode 26.2.)

I have a view that conforms to DropDelegate. When a file is dragged from the Finder and dropped on the view, the performDrop(info:) method successfully extracts a URL from the item provider and returns true, but the drag image slides away as if the drop had been rejected. Why? func performDrop(info: DropInfo) -> Bool { bgColor = .yellow let providers = info.itemProviders(for: [.fileURL]) print("performDrop, providers: \(providers.count)") if let aProvider = providers.first { if aProvider.hasItemConformingToTypeIdentifier(UTType.url.identifier) { aProvider.loadItem(forTypeIdentifier: UTType.url.identifier) { (item, error) in if let error = error { print("Error retrieving item provider data: \(error.localizedDescription)") return } if let url = item as? URL { print("Received file URL (from Data.1): \(url)") } else if let data = item as? Data, let url = URL(dataRepresentation: data, relativeTo: nil) { print("Received file URL (from Data.2): \(url)") } } } } return true }

When I use the Xcode 13 beta to build an app, view-based NSTableViews don't draw anything when the app is run under macOS 10.12 or earlier. I filed a bug (FB9278241), just wondering if anyone has any insight or workaround.

In the General system settings panel in Ventura, under Login Items, there are 2 sections: "Add Login Items", and "Login Items Added by Apps". What is this second category, and where can I find more about how to create such login items?

I'm trying to use signposts to help profile C++ code with Instruments (with Xcode 14 beta 5), and it's not working. A section of code in question, which is definitely getting reached, starts like this static os_log_t sSignpost_log = nullptr; if (__builtin_available( macOS 10.14, * )) { if (sSignpost_log == nullptr) { sSignpost_log = os_log_create( "com.frameforge.gscn", "PointsOfInterest" ); } os_signpost_interval_begin( sSignpost_log, 99, "com.frameforge.gscn" ); } and ends like this if (__builtin_available( macOS 10.14, * )) { os_signpost_interval_end( sSignpost_log, 99, "com.frameforge.gscn" ); } In Instruments, I have a Points of Interest instrument, and in the recording options for that instrument, I added 99 and com.frameforge.gscn as a row under "signpost code names". But after recording a run, the Points of Interest instrument always shows "No Data". I tried adding an os_signpost instrument, and it shows some data, but none of mine. What am I missing?