Alex Gray

Alex Gray has asked 30 questions and find answers to 108 problems.

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Alex Gray questions

Is it possible to add a category to an Objective-C meta-class?
Perform an assignment and an operation using a ternary operator + && in Objective-C?
Is it possible to determine (at runtime) if a function has been implemented?
Introspect the current block context, à la _cmd inside a method
Is it possible to use NSArray, NSDictionary, and NSNumber "literals" in Xcode 4.3? (LLVM 4.0)
Why / how could NSUInteger be returning a NEGATIVE number?
Why does "conformsToProtocol" not check for "required" method implementations?
Is it possible to add "keyed-subscripting" to Class objects?
How to trigger an IBAction method programmatically vs. via a button, etc?
How to make a jQuery GET/AJAX request to a private/custom URL protocol?

Alex Gray answers

Where are the image files for the constants in NSImage located?
NSTask executed only once
How can I create an image from a region of a screen in Javascript?
Selectively overriding CALayer implicit animations
How to show a subsection or "slice" of an SVG graphic?
How to get the executable path of a command line tool in Objective C (Foundation framework)?
Error after upgrading to xcode 4.6 and iOS 6.1 "used as the name of the previous parameter rather than as part of the selector"
Override a method via ObjC Category and call the default implementation?
How to create OSX .clr palette files?
Compactly disable arc-retain-cycles warning for self-referencing blocks