I used to think that folders needed to have an extension so that they are recognized as packages by the Finder. That extension would be declared in the owning application's Info.plist. Obviously t...

I have a NSTextView with a sizeable quantity of text. Whenever I scroll however, the view isn't updated properly. There are some artifacts that remain at the top or the bottom of the view. It appea...

I have a toolbar with various options and some options should not be visible in some cases. I have already figured out a way to disable them in my application, using this callback: - (BOOL) valid...

I want to convert NSAttributedString containing RTFD to uppercase without losing attributes of existing characters and graphics. Thanks,

I'm making Development tool which needs Git, Heroku, Python, Ruby. So I need package installer to check and install git and heroku toolbelt, if those are not exist. In my guess, I can use package...

On running the following code: let pid = getAppPid() let AXApp = AXUIElementCreateApplication(pid) var children: CFTypeRef? let returnVal = AXUIElementCopyAttributeValue(AXApp, kAXChildrenAttrib...

I have been following the Handmade Hero project where Casey Muratori creates a complete game engine from scratch without the use of libraries. This engine is highly portable since it renders its ow...

I've discovered CADisplayLink for IOS 3.1+ which triggers events when the display has been refreshed, effectively allowing you to synchronise with display updates without having to use NSTimer. Is...

I added the google_mobile_ads sdk v11.6.0 in my swift project. Now when I run the project I get the following error ld: warning: Could not find or use auto-linked library 'swiftXPC': library 'swift...

I want to be able to add a button to the title bar of all windows that open on a Mac. The button will go on the right hand side, opposite the X - + buttons. This is asked about windows of my app ...

I am trying to install the package: cloud_firestore and am getting an error when running the pod install when installing the dependency BoringSSL-GRPC. Is it possible for me to install the dependen...

I want to programmatically trigger a 'click' event on my Safari Extension toolbarItem so that my custom popover appears after something happens on the webpage. I'm using the new Xcode extension IDE...

When I run the command npx react-native run-ios in my terminal on my Mac I receive the error CompileC /Users/jessicageorge-mannella/Library/Developer/Xcode/DerivedData/AwesomeProject-ctnixtnnzajiwu...

I am new to Mac OS X development. In XCode/Cocoa developers environment each Objective-C projects starts with #import <Cocoa/Cocoa.h> It works fine but I am puzzled with Cocoa.h file location...

I'm trying to get my program to recognize a double click with an NSCollectionView. I've tried following this guide: http://www.springenwerk.com/2009/12/double-click-and-nscollectionview.html but wh...

Short and sweet: How can I tell Interface Builder to center a window on a user's screen? I've seen the positioning tool on the inspector, but eyeballing doesn't always land as squarely as I like. I...

I'm trying to get an update of the current active (foreground) application. Even across computer screens. I'm using this code to try to do it: print(NSWorkspace.sharedWorkspace().frontmostApplicat...

I want to calculate the histogram of a CGImage. I am using the CIAreaHistogram built-in CoreImage filter. Justin Mrkva has done something along similar lines. He says: I get the CIImage for the...

Is there a simple way to do something like.. [NSMagicDataConverter humanStringWithBytes:20000000] ..which would return "19.1MB"?

Is it possible to strikethrough the text in a label (NSTextField)? I have tried to use the Font Panel, but apparently these are ignored when I try to set them:

How can I create a single installer package for an OS X binary as well as a few configuration and script files? Final folders should look like this: Any help would be appreciated. Thanks.

I can't get scrolling both vertically and horizontally to work with a custom layout for NSCollectionView. According to the docs, in my subclass I return the collectionViewContentSize and if that is...

I can open a Terminal tab using the following AppleScript: tell application "Terminal" set myTab to do script "exec sleep 1" get myTab end tell This returns a string like: tab 1 of window id 3...

As the title tells,now i can simple convert HTML into NSAttributedString with initWithHTML:documentAttributes: , but what i want to do here is reverse. Is there any 3rd party library to achieve thi...

The documentation for the Keychain Services API leaves a bit to be desired. One thing that I can't seem to locate are details on accessing the Secure Notes that the Keychain Access app lets you add...