While we see in the docs for the classes we are looking at that “this class inherits from this other class”, we don’t see the whole inheritance chain. Sometimes, that’s useful. Once we have a model of

On High Sierra, 10.13.n, how does a developer go about uninstalling their own kext placed in /Library/StagedExtensions? As I understand it (maybe incorrectly), these are under SIP protection. The docs

macOS 13.1 Is there a way to ascertain whether a process is sleeping or awake? There is IORegisterForSystemPower which sends seep/wake notifications but needs a runloop. Anything else? Background: I w

I need to do select() with a rather large timeout value (several minutes). So in order not to block the runLoop / mainThread I tried: dispatch_queue_t myQueue = dispatch_get_global_queue( QOS_CLASS_BA

All, I sort of came down with "paralysis analysis" last night. I am developing a small chat app on iOS. I am going to use Foundation's InputStream, OutputStream, and StreamDelegate. I became stuck bet

My app may need to - send an SMS message; or - place what looks like a phone call to a paging system … without user intervention. In other words MessageUI.framework and tel: URLs are out. Is there a w

Hi All, I’m trying to update an old Mac Pro Early 2008 from 10.10.5 to 10.11.6, does anyone know how to do this? I can’t find it on the App Store and can’t find a separate .dmg file to download….. Any

After migrating to macOS 13.1 when I first started Xcode (9.1) it told me that it had to install some components. What are these “components” and where do they live? Also: My macOS 13 partition does n

Starting an document based app in macOS 13.1 I get: […] [default] [ERROR] Failed getting container for URL: [ ~/Desktop/the current document] r, error: Error Domain=BRCloudDocsErrorDomain Code=12 “App

Ack. I'm having a hard time figuring out how to make an NSImageView in an NSScrollView act like it does in Preview.app, where it will stay centered within the window when any axis is smaller than the

All, I created a simple iOS app to connect to a server and receive a message. I am doing this as an example app using InputStream, OutputStream, and StreamDelegate. The Server is a simple Java app run

Hi all, Is there a way to cancel a scheduled block used with dispatch_after(…)? While I’m finding the functionality it offers really useful, it seems like as soon as you use it you have to commit to t

I'm using NSTextContainer with exclusionPaths, NSLayoutManager, and UITextView for rendering text into balloons, and the user can control the font size. When overflow occurs, I'd like to show an indic

macOS 12.6, Xcode Version 9.1 (9B55). A window with: fixedSpace | fixedTextField | fixedSpace | textField(width ≥ 50) | fixedSpace | textField(width ≥ 100) | variableSpace( width ≥ 10) This implies wi

macOS 12.6, Xcode Version 9.1 (9B55). I added a NumberFormatter (Decimal) to some TextField. This now shows: “12.345”. Not bad, but I want to see: “12.3”. NSNumberFormatter has a property: maximumFrac

I want to have a Finder window with “/a/hugeFolder/someThin"g selected. [ NSWorkspace.sharedWorkspace openFile: @“/a/hugeFolder/someThing” withApplication: @“Finder" ] results in an AlertPanel: “There

macOS 12.6 I have an ArrayController which has ContentArray bound to AppDelegate.contentArray The contentArray contains MutableDictionaries with a key “Flag”, value: boxed BOOL. And a TableView which

Hi all, Can anyone link any sort of documentation that explains what all the stuff NSView does for printing does? I’m sure there used to be documentation explaining this but I just can’t find it. (And

Dear all, My name is Akifumi Takata. Regards, Akifumi Takata

Hi all, I’m suddenly running into some linker errors against AudioToolbox on a project after upgrading Xcode and installing High Sierra (not sure which of these did it). Undefined symbols for architec