cocoa

Xcode: Is there a location/flag to prevent a Class from compiling?

Is there a place (or flag) in Xcode for files that you don't want to compile? There are some classes that are/may become part of a project but currently won't compile. The main project doesn't link to them but Xcode still tries to compile them. Is there a way to prevent blocking the rest of project from compiling until these new Classes ...

The 10.6.3 os x update broke simulated key-presses for Nestopia.

The iPhone app that I released is a wireless game controller, it translates touches on the device into key-presses on the networked Mac. This allowed for playing emulator (e.g. Nestopia) games using the iPhone as a controller. Of course, the day that I released it coincided with an os x update. After installing this update, the simula...

Accessing resources in the package of an application created with xcode/cocoa

I am trying to make a simple that needs to create an NSImage and I want to put the .png file in the resources of my package contents. I added the .png file to my resources directory in Xcode and when I create the applicaiton the .png file shows up in my resources inside package contents but I am havhing trouble figuring out how to refer...

[Cocoa] Can't find leak in my code.

Hi, I've been spending the last few hours trying to find the memory leak in my code. Here it is: NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; expression = [expression stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]]; // expression is an NSString object. NSArray *argument...

[cocoa] NSSearchField not working as expected

Hi, I'm trying to follow Marcus Zarra in his book 'Core Data'. In the book, he makes a small sample application, but it doesn't give much help when things don't work out... He starts out by visually designing three entities, and then adding array controllers for each entity to the main nib. Second, he adds a tableview and some other vi...

CGGradient in an CGPath

Is it possible to draw a gradient in a path on the iPhone? I'm looking for a replacement of the mac os x method -drawInBezierPath:(NSBezierPath *)path relativeCenterPosition:(NSPoint)relativeCenterPosition of NSGradient. ...

What does that +0100 value mean in NSDate?

When I look at an NSDate value in the debugger, I get something like this: 1.4.2010 22:01:47 +0100 I don't get it what this +0100 is good for. Sometimes it is +0200. Is that supposed to be the time zone or something like that? What's it exactly? How does it affect the "since reference date" value? ...

Hiding NSPanel through a timer in Cocoa

Hello, I am new to Cocoa and would like to know how to hide an NSPanel when a timer tick, I have tried to call [myNSPanel orderout:self], the code runs but the panel is still there. Do I need to do something different? Thanks in advance. ...

NSBitmapImageRep data Format as application icon image??

i have a char* array of data that was in RGBA and then moved to ARGB Bottom line is the set application image looks totally messed up and i cant put my finger on why? //create a bitmap representation of the image data. //The data is expected to be unsigned char** NSBitmapImageRep *bitmap = [[NSBitmapImageRep alloc] ini...

Broken Multithreading With Core Data

This is a better-focused version of an earlier question that touches upon an entirely different subject from before. I am working on a Cocoa Core Data application with multiple threads. There is a Song and Artist; every Song has an Artist relation. There is a delegate code file not cited here; it more or less looks like the template XCo...

Get currently selected item in Mac UI

I want to get the currently selected item (text, image, etc) and display in my Cocoa app's window when a keyboard shortcut is hit. Droplr has functionality like this, for example. How do I go about doing this? For example, I want it to return "(text, image, etc)" as text when that text selected on the screen like this: http://drp.ly/JAd...

Using Spotlight as the "database" of an application

I'm developing an OS X application to organize "things" (as iTunes is to music and iPhoto to photos). Instead of having my own database and index, I'm considering using Spotlight to essentially serve this purpose. Has anyone tried this? Is it wise? The main benefit, as I see it, would be simplicity and avoiding redundancy. It seems a b...

Cocoa nextEventMatchingMask not receiving NSMouseMoved event

Hello, I created a local event loop and showed up a borderless window (derived from NSPanel), I found in the event loop there's no NSMouseMoved event received, although I can receive Mouse button down/up events. What should I do to get the NSMouseMoved events? I found making the float window as key window can receive the NSMouseMoved...

How can i show my pdf file on ipad application

hi i want to create simple pdf reader application for ipad. but did not find the proper documentation or sample code. please guide me from where i should start. Thanks Miraaj ...

Do I need getters and setters if i'm depending on garbage collection in objective-c

New to Cocoa and Objective-c. Do I need getters and setters if I'm depending on garbage collection? For example is it safe to just modify instance variables directly without the dot syntax? And in the dealloc method can I sent them to nil instead of release (or do I even have to release them)? ...

Pointers, am I using them correctly? Objective-c/cocoa

I have this in my @interface struct track currentTrack; struct track previousTrack; int anInt; Since these are not objects, I do not have to have them like int* anInt right? And if setting non-object values like ints, boolean, etc, I do not have to release the old value right (assuming non-GC environment)? The struct contains objects...

Export Core Data Entity as text files in Cocoa

Hello, I have an entity in core data that has 2 Attributes. One that is a string called "name", and another one that is a string called "message". I need a method to create text files for all the attributes that the user has added. I wan't the files names to be the name attribute and the contents to be the message attribute. If anyone ...

Helper Application

How do you create a GUI-Less Application that runs in the background without appearing in the dock or in the application switcher. ...

Best practice for copying private instance vars with NSCopying

I might be missing something obvious here, but I'm implementing NSCopying on one of my objects. That object has private instance variables that are not exposed via getters, as they shouldn't be used outside the object. In my implementation of copyWithZone:, I need alloc/init the new instance, but also set up its state to match the curre...

Anyone know the state of cocoa#?

Having just updated Mono to 2.6.3 (on OS X), I noticed in the installer that cocoa# 0.9.5 is also installed. However using MonoDevelop there are no cocoa# project templates by default, and I was wondering if anyone knew more about creating cocoa# apps. If you goto the cocoa# page on the Mono site you can see it hasn't been updated since...