A firsthand account of how the Mac human interface was developed 40 years ago for the Lisa, and resources for learning to code for macOS.
Downloading runtime support from Apple can save you wondering why a tool appears to be broken.
Source code workthrough of one method of checking for and automatically downloading updates to an app, in Swift 5 for macOS 10.11-10.14.
is Swift somehow superior to Objective-C? Or is it a second-class language for macOS? Do those questions have any meaning at all?
How can an app check that nothing has nobbled it? How to use its code signature to perform a simple launch test.
Presenting two or more versions of the same text close together is a challenge. Here’s how I arrived at one solution, and implemented it.
How to cater for Dark Mode when printing an AppKit view, and how to add a command to export a document in PDF format. Swift 5.0.
This error message can occur when running any command tool, or an app which calls a command tool, in 10.14.3 and earlier.
In Sierra but not Mojave, when the user opens an ancillary window, it appears for a moment, then vanishes. Is it a bug in the code, or in AppKit?
How many apps should launch faster, deliver better performance, be smaller, and use less memory than they have in the past.