I need to determine whether I am drawing into a CGPDFContext or a different context at runtime. In AppKit, I can use [NSGraphicsContext currentContextDrawingToScreen], but this is code that is passed

I have a CoreData-based app where I am experimenting with inter-device synchronization using iCloudKit. At the moment, I am running in Development mode and am using an iPad and a MacCatalyst app as th

I needed to add many attributes to my CoreData model. Filling in these attributes will happen during migration of old docs, which means loading all the files that each asset points to. Since it can ta

macOS 15.4; Xcode Version 11.4 (11E146) I have a window with a WkWebView. This WkWebView should handle a special scheme. The only way to do this that I know of, is: @IBOutlet var wkWebView: WKWebView!

I've noticed that the vertical scrollbar in the scroll view for my collection view is wrong after app restoration. This happens if the full collection (via CoreData) has, say 1000 items in it, then I

I’m going through Chris Eidhof’s Core Data tutorial here https://www.objc.io/issues/4-core-data/full-core-data-application/ and noticed something that ends up creating a build error directly after cre

iOS 13+, Xcode 11.4.1, Storyboard-based application. I am using a navigation stack to manage some data edits. That is, • nav-controller root is a list of items. • tap on item to segue to a detail pane

Hi, I see that the old AppleScript list that was hosted by Apple is no more, does anyone know of an alternative? Thanks a lot Dave

I am getting a crash, but only in the release version. I get a very helpful "Error 1" if I try to debug the release version, and logging doesn't get me anything, as the crash prevents the log entry fr

Hi all, I have a problem with controls in a sheet-modal window. The button control’s target and action are set up to call a method in File’s Owner, which is a NSWindowController subclass that owns the

Can you take a look at this for me? I think I’ve been cooped up at home too long, because whatever is going on, I’m missing it. Context: I’m working on a data import function for a new app. It looks l

Kurt, The menu key equivalents are pulled out before -keyDown: is called. You can override that event in -performKeyEquivalent:, a methof of NSResponder (and therefore views, etc). You can probably ca

macOS 15.4 I have a SwiftUI ContentView, which contains a few vertically stacked Views. For one of these I need the following functionality: when the mouse moves inside the view, or when the view is c

Ran into an interesting issue today… Mac app Xcode 9.4.1, 32bit, 10.12 SDK, 10.6 Deployment Target non-sandboxed app I am opening an NSSavePanel to allow a user to save the results of a report that is

I need to replace calls to CGShowTextAtPoint() with calls to -drawAtPoint:withAttributes: I made this change and drawing fails… :/ i.e. no text rendered, no exception, logging of errors, etc. simply n

Hi There I see from the docs that when you create an NSAlert that you should dispose of it yourself. My code for creating a simple alert and using it looks like this :- NSAlert *alert = [[[NSAlert all

I have my web view displaying correctly, but I've run into a problem in getting the auto layout constraints working correctly. Basically, I build the appropriate web view as a subview of a custom view

My app currently supports 10.9, and I want to add a feature that displays an HTML document stored locally (in the bundle). The obvious way is to have a window which contains a web view. However, WKWeb

Yes. Prior to 10.12, WKWebView was not available in Interface Builder and could only be instantiated in code. -Owen

Does anyone know if it is necessary to dispatch_suspend/resume a queue or source when sleep/wake notifications triggered in a macOS app? I've read the docs and done some searching but couldn't find an