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    After some searching, I got the following solution : reference. CLLocationCoordinate2D* new_coordinate = malloc(sizeof( ... Objective C newbie. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'd like understand why if i try to set value (I.e. setAlphaValue or setTitle) for an object (like a NSButton) in ... :@"My title"]; } } @end See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    How can I convert a NSImage to CGImage in Swift? In Objective-C I did it like this: - (CGImageRef)CGImage { ... at the line let maskRef ... See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm trying to create a HUD style display for a foreign application. To do this, I'd need to make a ... through Cocoa (Rococoa) or Carbon. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    How can I determine whether an NSSearchField/NSTextField has input focus? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm having a really difficult time trying to get NSPasteboard to work, so forgive me for my lack of ... me with my dragging operations. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have setup tab bar controller using interface builder, and each tab bar item is linked to a view controller ( ... of memory warning. Any idea? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    What's the correct way to create an enumeration with a specific type in Objective-C? How does NS_ENUM and ... _type _name; enum : _type See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    The height of the UITabBar seems to have changed between iOS 7 and 8/9/10/11. I'm posting this question for ... 9/10/11 on iPhone and iPad? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    According to the docs, CTFramesetterSuggestFrameSizeWithConstraints () "determines the frame size needed for a string range" ... x 31.000000 See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I want to change the height of an NSWindow titlebar. Here are some examples: And I could use an NSToolbar, ... movable. Have you any ideas? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I want to draw the desktop on Mac OS X (Snow Leopard). Specifically, I want to achieve the same effect as ... desktop background, that is OK. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    What is the difference between a Layer Backed View and a Layer Hosting View in Core Animation? What are the ... appropriate to use either type? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am running creating an iPhone application which performs a costly operation and I wanted to create an ... this kind of behavior? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Is there a method that returns all the keys for an object conforming to the NSKeyValueCoding protocol? Something along ... so far. Thanks, G. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have cocoa application running on OS X. I have used NSLog for debugging purpose. Now I want to redirect the ... console but only in file ?? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm trying to get CIImage from ImageView that display on the screen. UIImage *image = myImageView.image; convert image ... .]; How to do this? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am trying to use Lua on the iPhone. On Mac OS X, in a normal (non-iOS) Cocoa application, I used the following ... app if it has Lua in it.) See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    When I am trying to modal a view controller with flip horizontal transition in iOS7, the origin of navigation ... Any help will be appreciated. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    What is difference between nib and xib in Interface Builder files? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I can create UIImage from NSData using [UIImage imageWithData:] or [UIImage initWithData:] methods. I wonder if ... myData = [myImage getData]; See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I've developed on Windows and .NET for my whole career so forgive my ignorance on this one. What would be the ... Windows that's fine. Thanks. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Is there an API, that can lock the screen as the menu bar entry you can add from Keychain preferences? This ... bringing the system to sleep. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    What's is a reliable way to detect if user has enabled this API? CGWindowListCreateImage returns a valid object even if ... { return YES; } } See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm experiencing the same problem in this previous stackoverflow.com post. Specifically, I seem to be able to ... for Google App Engine code. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    What's the fundamental difference between them? Is a UITextField that's not editable is effectively a UILabel? Are those essentially the same? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm looking for tools and approaches to determining what parts of of my Cocoa and Cocoa-Touch ... without undermining code maintainability? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am getting confused with use of self inside blocks, I go through some of Apple's documents but still cannot find ... ? **I am using ARC See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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