appkit

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How to get a random unicode character in objective C

I was wondering how to get a random Unicode character so that every time this is run it generates a different value. This is what I have so far to get a character:[详细]

2023-03-05 06:01 分类：问答
NSSound -(id)soundName:(NSString *)name;

Does [NSSound soundNamed:@\"RandomName开发者_StackOverflow\"]; cache sounds like [NSImage imagenNamed:@\"randomName\"]; does? It doesn\'t mention it in the class reference \"The soundNamed: method che[详细]

2023-03-04 12:26 分类：问答
How to end editing in NSTextFieldCell inside NSOutlineView after ESC key is pressed

I\'m trying to get a custom NSTextFieldCell (inside a NSOutlineView) to end editing when the ESC key is pressed but cannot find any way to accomplish this. I tried to add an observer for the NSControl[详细]

2023-03-02 09:57 分类：问答
Lazy Image Drawing

I have an object that needs to draw into a graphic context on demand, however, the content needs time to render and might not be available when the objects draw method is invoked.[详细]

2023-03-01 00:13 分类：问答
Get Certificates in Keychain

I\'ve looked over the Security framework documentation but I can\'t seem to be able to find a way to get all of the certificates on 开发者_如何学JAVAa given keychain. Are there methods to accomplish t[详细]

2023-02-28 14:04 分类：问答
Way to get beginGestureWithEvent/endGestureWithEvent if window isn't frontmost

Is there a way to get - (void)beginGestureWithEvent:(NSEvent *)event and - (void)endGestureWithEvent:(NSEvent *)event[详细]

2023-02-26 02:44 分类：问答
NSCFString leaking when handling key events

I am trying to capture key presses with this code. My problem is tha开发者_StackOverflow中文版t Instruments throws a message about a leak.[详细]

2023-02-22 07:21 分类：问答
NSTextField placeholder text doesn't show unless editing

I set the placeholder text of m开发者_如何学运维y NSTextField in Interface Builder, but the placeholder text doesn\'t show until I click inside the text field to edit it.Have you tried setting the pla[详细]

2023-02-21 05:04 分类：问答
Why on Mac, NSReadPixel() will cause "_NSReadPixel", referenced from: _main in cctJJibI.o ld: symbol(s) not found?

On Mac OS X Snow Leopard, the program uses: #import <Foundation/Foundation.h> #import <ApplicationServices/ApplicationServices.h>[详细]

2023-02-19 20:23 分类：问答
Using undocumented classes such as NSPreferences in Mac App Store

There is an undocumented class called NSPref开发者_C百科erences that appears to be used by Safari and Mail, and eases creation of multipage preference pages.[详细]

2023-02-17 16:23 分类：问答