core-foundation

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Using IOHIDManager to Get Modifier Key Events

I\'m trying to use IOHIDManager to get modifier key events because Cocoa flagsChanged events are lacking (difficult to differentiate between press/release, left/right if both are down, etc.) Here\'s t[详细]

2023-03-30 22:15 分类：问答
What is an NSCFDictionary?

I\'m getting an NSCFDictionary returned to me and I can\'t figure out how to use it.I know it\'s of type NSCFDictionary because I printed th开发者_Go百科e class and it came out as __NCSFDictionary.I c[详细]

2023-03-29 19:39 分类：问答
How to access a different formats within an icns file (Apple Icon Image format)

does anyone know how to access different formats of an icns file? For example this file contains multiple sizes of t开发者_Python百科he same icon:[详细]

2023-03-28 14:11 分类：问答
USBPrivateDataSample on Mac Snow Leopard

I need to create application that get notified each time I plug or unplug USB, and also can get access to it. For start, I tried to use USBPrivateDataSample application as example:[详细]

2023-03-24 07:08 分类：问答
Creating custom Core Foundation types.

Is it possible to create custom Core Foundation type开发者_开发百科s? Does anyone know any document or something that could help me with this?[详细]

2023-03-24 02:57 分类：问答
Segmentation fault with CFNumberGetValue

I\'m totally perplexed at how this code is able to cause a segmentation fault. The code works fine on 10.5+ but seg faults on 10.4. Any ideas? The fault occurs during CFNumberGetValue.[详细]

2023-03-22 21:54 分类：问答
How to use CoreFoundation in QuickTime SDK for Windows?

Anybody can help me for co开发者_如何学Pythonmpile this code in Cygwin / MingW / VS20(05|08|10)?[详细]

2023-03-21 02:13 分类：问答
CFDictionary returns null

I\'m attempting to use Core Foundation for the first time and I must be missing something. I am attempting to use NSObjects as my keys and values for a CFMutableDictionaryRef.[详细]

2023-03-20 16:32 分类：问答
Is there a constant for the maximum CGFloat value?

I need to create a CGSize to compute text height of an arbitrary text with arbitrary length. UIKit has this nice method -siz开发者_JS百科eWithFont:constrainedToSize: and my text is only constrained in[详细]

2023-03-11 19:13 分类：问答
How to correctly release a CGMutablePathRef in -dealloc?

Problem: Maybe the CGMutablePathRef has been created and set, but maybe not. What I do right now in -dealloc is:[详细]

2023-03-10 04:09 分类：问答