core-foundation

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What does CF in CFnumber,CFstring etc in xcode application mean?

I have minimum exposure to Xcode and i/o kit. I came across terms like CFString, CFNumber etc. Whether this CF have any particular meaning like these strings and numbers inh开发者_运维技巧erited from[详细]

2023-04-09 09:58 分类：问答
Core Foundation objects and retain/release messages

Let\'s say we have some Core Foundation objects, such 开发者_开发问答as CGColorRef, that are added to an NSArray like this:[详细]

2023-04-09 07:26 分类：问答
CTFramesetterSuggestFrameSizeWithConstraints: what attributes can be set?

The documentation for CTFramesetterSuggestFrameSizeWithConstraints describes the frameAttributes parameter as so:[详细]

2023-04-08 14:06 分类：问答
Why does Aquatic Prime fail to validate file on second attempt?

I have the Objective-C version of Aquatic Prime working in my app.When I swap out the Objective-C class for the CoreFoundation functions, I can validate the license file once, but subsequent validatio[详细]

2023-04-07 19:22 分类：问答
Exporting a Symmetric Key SecKeyRef item as a CFDataRef

I am having some trouble with getting a symmetric key exported from a SecKeyRef to a CFDataRef for wrapping or storing,or simply for use with other Cocoa code.[详细]

2023-04-05 12:53 分类：问答
What is the Core Foundation equivalent code for the Cocoa method +[NSData dataWithContentsOfFile:]?

I\'m using Core Foundation functions. What is the Core Foundation equivalent code for the C开发者_StackOverflowocoa expression [NSData dataWithContentsOfFile:filePath]?Create a CFURL referring to the[详细]

2023-04-05 10:57 分类：问答
Casting a basic CFTypeRef to a more specific CoreFoundation type

Is there a simple way to convert开发者_Go百科 a CTypeRef to a specific CoreFoundation type? I\'m not looking to cast inline as (CFStringRef)myObjectRef but would like to create a helper method to do t[详细]

2023-04-04 23:47 分类：问答
Core Foundation object - Potential leak

I have the following (adapted from Apple Low Level File Management - Resolving Aliases) NSString *resolvedPath = nil;[详细]

2023-04-04 14:39 分类：问答
Do I need to release an NSString created by CFUUIDCreateString()?

I am creating a NSString like this, should I release it afterwards or not? CFUUIDRefuuidObj = CFUUIDCreate(nil);[详细]

2023-04-04 04:51 分类：问答
What to do when "memory leaks" are caused by the Foundation framework?

The application I\'m working on at the moment is accumulating more and more memory as time passes. It\'s not really a memory leak, since the Leaks tool doesn\'t recognize it as a leak, but it is somet[详细]

2023-03-30 23:40 分类：问答