Has NSAlert changed recently? Looking at the documentation I see that the only initializer (swift) is `init(error: Error)` yet my code never passes an error. Is the Error argument new? But my issue is

Because of other issues, I am having to use Xcode 9.4.1 for my app. However, there is one function that depends on a third-party tool which fails on macOS 10.14. I'd like to disable the command that c

I solved this problem in 2012, and then again in 2014, when a change disrupted things. Now Mojave is changing the playing field once more... The problem: I need to get the icon for the current keyboar

Let me start by saying I have a solution to my problem, but would like to know why some of the other things I tried didn't work... I have some procedures which are performed on background queues (spec

Running Xcode 9.4.1 on macOS 10.4.2, when I click on a combo box in a window, in the debugger I get an exception: > [General] The window has been marked as needing another Display Window > pass, but i

This is a Swift usage question. I am working on a family of UI objects which share some common behaviors. Having done several, it is time to refactor (for all of the obvious reasons). I would like to

Hi all, Can anybody advise on the following exception/crash that I am encountering? The issue is: > [NSWindowGraphicsContext retainedCGImage]: unrecognized selector sent to instance The problem is tha

Since we finally were able to move up to 10.13 (printing company, historically slow to change), I've noticed that text fields in views and in cell-based table views now exit editing as soon as any cha

I have an app where I see this crash periodically. Does this look to you like the stream is being destroyed before the run loop releases it? Basically an overrelease? Thread 8 Crashed: 0 com.apple.Cor

I have a file type all set up in my target's Document Types and Exported UTIs as so: <key>CFBundleDocumentTypes</key> <array> <dict> <key>CFBundleTypeExtensions</key> <array> <string>livery</string> <

How can I find the window produced by -[NSApplication orderFrontStandardAboutPanel:]? (I’d like to hide the window when my app deactivates.) I know it’s somewhere in the array -[NSApplication windows]

In the iOS app that I’m working on now, we have a problem that I’ve never seen in my years as an iOS programmer. While we have a 99.7% crash free user experience, what does crash is weird as fuck. By

I implemented a new feature that brings up an NSTextField for entering data. Once it's done, I call removeFromSuperview() and it goes away as expected. But then validateUserInterfaceItem is no longer

We have an app that handles incoming server connections. For each connection it opens a window that shows the activity of the connection. When the client is done the window closes. When the activity h

Hi Folks, I will dispense with a rant about the eroding freedoms and the pains of sandboxing. My problem is finding a correct (App Store approval) method to enable drag and drop to the App Icon. I'm f

I have what seems to be a simple operation to perform, but it crashes. I have a custom view which includes an NSTextView called textView. In the mouseDragged(with:) function in my view subclass, I hav

I’ve got a view-based NSTableView that uses NSTextFields. I’d like to be able to select text in some of the columns, mostly so it can be copied to the pasteboard. If I set the “selectable” property of

What's the best way to return data from a scriptable app when the property is a record-type that's declared in the sdef? It corresponds to an Objective-C class. I ended up adding a separate property t

This seems like bug, or I need to override something. I have a class: @interface Blah : NSObject @property (readonly) NSUInteger id; @end The id property is exposed to AppleScript in the Blah class: <

What do you have to do these days to make this work? I tried returning YES from acceptsFirstResponder, as was suggested somewhere. There is 1 NSTrackingArea added to the view, using options NSTracking