This post is a collection of common error messages you may receive during application development in Xcode. Error message Receiver ‘NSManagedObjectContext’ for class message is a forward declaration Solution Add #import <CoreData/CoreData.h> to the … – Prefix.pch Prefix header file in the Supporting Files folder
Tag Archives: MacOSX
QWERTY Hungarian keyboard on an English Macintosh keyboard
The English characters on the English and Hungarian keyboards are almost at the same place. The exceptions are the Z and Y keys, those are swapped. When you activate the Hungarian keyboard on a Mac with an English keyboard, the Z key will display Y and the Y key will display Z on the screen. …
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How to lock your Macintosh and Windows computer
Always lock your computer to protect your secrets in the office while you are getting a cup of water from the kitchen. To lock a Macintosh computer Press the Control – Command – Q keys, or In the upper left corner click the Apple logo and select Lock Screen To lock a Windows computer In Windows, …
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Apple Objective-C programming fundamentals – Part 1 – The language.
To write an application for an Apple device (iPhone, iPod, iPadn, Macintosh) Apple recommends the Ojbective-C language. Xcode, the Apple development environment (IDE) supports the usage of Objective-C. This article summarizes the basics of Objective-C for beginners of that language. It is helpful if you already have some programming experience, otherwise some terms will require …
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