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Recent questions tagged cocoa
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cocoa - Storing CLLocationCoordinates2D in NSMutableArray
After some searching, I got the following solution : reference. CLLocationCoordinate2D* new_coordinate = malloc(sizeof( ... Objective C newbie. See Question&Answers more detail:os...
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625
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cocoa - init and awakeFromNib
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...
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cocoa - Swift NSImage to CGImage
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...
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699
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cocoa - How to create an overlay window in Java?
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...
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Oct 24, 2021
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cocoa - How to determine whether an NSSearchField/NSTextField has input focus?
How can I determine whether an NSSearchField/NSTextField has input focus? See Question&Answers more detail:os...
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Oct 24, 2021
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cocoa
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cocoa - NSPasteboard and simple custom data
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...
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Oct 24, 2021
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cocoa
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595
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cocoa touch - Does Interface Builder use the -init method to initialize view controllers?
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...
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Oct 24, 2021
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71.8m
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cocoa
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561
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cocoa - Objective-C Enumeration, NS_ENUM & NS_OPTIONS
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...
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Oct 24, 2021
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cocoa
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508
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cocoa touch - What's the height of a UITabBar on iOS 8, iOS 9, iOS 10, and iOS 11?
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...
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Oct 24, 2021
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591
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cocoa - Core Text's CTFramesetterSuggestFrameSizeWithConstraints() returns incorrect size every time
According to the docs, CTFramesetterSuggestFrameSizeWithConstraints () "determines the frame size needed for a string range" ... x 31.000000 See Question&Answers more detail:os...
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Oct 24, 2021
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cocoa
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cocoa - How to change the height of an NSWindow titlebar?
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...
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Oct 24, 2021
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71.8m
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cocoa
0
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785
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cocoa - How do I draw the desktop on Mac OS X?
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...
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Oct 24, 2021
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cocoa
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614
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cocoa - What's the difference between a CoreAnimation Layer Backed View and a Layer Hosting View?
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...
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Oct 24, 2021
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71.8m
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cocoa
0
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708
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answer
cocoa touch - Does UIActivityIndicator require manual threading on iPhone
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...
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Oct 24, 2021
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cocoa
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585
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cocoa - How do I find all the property keys of a KVC compliant Objective-C object?
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...
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Oct 24, 2021
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71.8m
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cocoa
0
votes
597
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answer
cocoa - How to redirect the nslog output to file instead of console
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...
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Oct 24, 2021
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71.8m
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cocoa
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1.1k
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answer
cocoa touch - How to Convert UIImage to CIImage and vice versa
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...
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Oct 24, 2021
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71.8m
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cocoa
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551
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cocoa touch - Lua on the iPhone?
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...
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Oct 24, 2021
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cocoa
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560
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cocoa touch - Navigation bar has wrong position when modal a view controller with flip horizontal transition in iOS 7
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...
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Oct 24, 2021
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Technique[技术]
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71.8m
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cocoa
0
votes
737
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answer
cocoa - What is the difference between NIB and XIB Interface Builder file formats?
What is difference between nib and xib in Interface Builder files? See Question&Answers more detail:os...
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Oct 24, 2021
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cocoa
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votes
603
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cocoa touch - Get underlying NSData from UIImage
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...
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Oct 24, 2021
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cocoa
0
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468
views
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cocoa touch - iPhone Development Environment (from scratch)
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...
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Oct 24, 2021
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Technique[技术]
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71.8m
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cocoa
0
votes
644
views
1
answer
cocoa - Lock screen by API in macOS
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...
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Oct 24, 2021
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71.8m
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cocoa
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678
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cocoa - Detecting screen recording settings on macOS Catalina
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...
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Oct 24, 2021
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Technique[技术]
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71.8m
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cocoa
0
votes
413
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1
answer
cocoa - Google App Engine with ClientLogin Interface for Objective-C
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...
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Oct 24, 2021
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71.8m
points)
cocoa
0
votes
668
views
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answer
cocoa touch - UILabel UITextField UITextView
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...
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Oct 24, 2021
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71.8m
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cocoa
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cocoa - Profiling Objective-C binary image size
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...
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Oct 24, 2021
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cocoa touch - Is it necessary to use weak references to self always inside blocks..?
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...
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Oct 24, 2021
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71.8m
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