2014/10/15 下午 10:04:50

iphone Programming Glossary: c's

Mac/iPhone: Is there a way to get a thread identifier without using Objective-C?

http://stackoverflow.com/questions/1540603/mac-iphone-is-there-a-way-to-get-a-thread-identifier-without-using-objective-c

C Is there a way to get any kind of thread identifier of the currently running thread without resorting to Objective C's NSThread. I'm improving our custom debug tracing system to handle multiple threads properly. For each line of trace output..

Multiple Clipped Rects to Create Collage in Core Graphics

http://stackoverflow.com/questions/2234668/multiple-clipped-rects-to-create-collage-in-core-graphics

where the first 1 3rd of the image is a colum of A's pic the middle is a column of B's pic and the last is a column of C's pic. I have some code written but it is only showing the first column and not the rest I think I have to clear the clipping..

What is a “delegate” in Objective C's iPhone development? [duplicate]

http://stackoverflow.com/questions/2534094/what-is-a-delegate-in-objective-cs-iphone-development

is a &ldquo delegate&rdquo in Objective C's iPhone development duplicate This question already has an answer here How do I create delegates in Objective C 8.. has an answer here How do I create delegates in Objective C 8 answers What is a delegate in Objective C's iPhone development iphone ios objective c share improve this question See this discussion A delegate allows one object..

MonoTouch & C# VS Objective C for iphone app

http://stackoverflow.com/questions/2696518/monotouch-c-sharp-vs-objective-c-for-iphone-app

Objective C since most documentation out there in the world uses it and or C level CoreFoundation APIs . Objective C's dynamic nature will feel foreign at first but you may find it quite liberating once you grok it fully. Having used many..

dismiss modalviewcontroller from another modalviewcontroller

http://stackoverflow.com/questions/5935462/dismiss-modalviewcontroller-from-another-modalviewcontroller

controller. So if you want to dismiss controller C you call dismissModalViewController at C.parentViewController. As C's parent is B thus B is dismissing its modal child controller that it presented. But you want to even dismiss B. Its responsibility..

Understanding reference counting with Cocoa and Objective-C

http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c

to have a look at Objective C and Cocoa with a view to playing with the iPhone SDK. I'm reasonably comfortable with C's malloc and free concept but Cocoa's references counting scheme has me rather confused. I'm told it's very elegant once you..

What are the differences between nil, NULL and [NSNULL nil]?

http://stackoverflow.com/questions/6814427/what-are-the-differences-between-nil-null-and-nsnull-nil

context pointers to NULL and nil is used for all Obj C object references. The difference exists because although Obj C's syntax happens to ride on top of C's the design of the language is higher level and its object IDs aren't conceptually the.. used for all Obj C object references. The difference exists because although Obj C's syntax happens to ride on top of C's the design of the language is higher level and its object IDs aren't conceptually the same as just pointers . Hence the..

Using Core Graphics/ Cocoa, can you draw to a bitmap context from a background thread?

http://stackoverflow.com/questions/702914/using-core-graphics-cocoa-can-you-draw-to-a-bitmap-context-from-a-background-t

of the API itself ie can it be used at all from more than one thread global state and other re entrancy issues such as C's strtok are common reasons that an API might not be thread safe too . Atomicity of individual operations can multiple threads..