I am familiar with the usage of Bonjour for advertising services on the "local" domain. I have worked through several examples, and I know the corresponding Cocoa classes I use for that. I am curious about how I advertise a simple Bonjour service to a different subnet. Specifically, I am trying to write a network service that runs on ...
I am writing a quicklook plugin for an MPO file. The plugin isn't that much of a problem, but the problem is trying to debug it. Apples documentation says that to debug you use qlmanage -r <filename> And I have. However, none of my breakpoints are matched. I assume this is as it hasn't matched my quicklook plugin with the type. Usin...
What's the difference between referring to an instance variable in an objective-c class as this: self.myIvar and myIvar if it's been declared as a property in the header and synthesized? ...
How to play an mp3 file, on repeat, on OS X 10.5 or higher? Please reply with a code snippet. Thanks. ...
I have a class that I want to share between two different applications. The on,y real difference is the base framework it references. Cocoa imports and of course Cocoa-Touch imports . I would like to use a precompiler directive to check what I am compiling to and allow the correct import. What can I check to see if what My target is...
Hi guys, can I get the list of messages that one object can response in runtime? (in Cocoa). ...
I watch the Core Data guides, and there are two way to obtain a new NSManagedObject instances. - initWithEntity:insertIntoManagedObjectContext: of NSManagedObject class + insertnewObjectForEntityForName:inManagedObjectContext: of NSEntityDescription class Are there any difference between both methods? Or, they just mean the same thin...
Hi, I'm trying to format some text in NSTextView to be placed in a single line with black background. One piece of text needs to be left aligned, the other piece (but still in the same line) needs to be centered. NSString *header = [NSString stringWithFormat: @"" "<table style=\"width: 100%; background: black; " ...
Hi, I'm a total noob to Xcode and Interface builder. I'm on version 3.2.3 and OSX 10.6.4. What I'd like to know, and haven't been able to find out, is how to display a list of n items. Using .Net, I'd probably use a Data Repeater control and then use that to repeatedly populate the controls I'd like to display. Is there an equivalent ...
I need to parse following string into NSDate. Example: 2008-09-28T02:48:16+05:30 I tried following but it is not working NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease]; [dateFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZ"]; NSLog(@"Date=%@",[dateFormatter dateFromString:@"2008-09-28T02:48:16+05:30"]);...
I have created a worker thread that uses a CFRunLoop to receive messages from a CFSocket. Now I need to send other messages to the worker thread so a CFMessagePort looked ideal. However its entirely non obvious to use: The documentation states that the name parameter is needed when communicating between processes. In my worker thread I...
I have a simple window with 3 buttons and I am trying to add a system-wide hot key so i can "press" those buttons without having to switch to that app, press a button and then go back to what I was doing. Something like Cmd+Shift+1 press button 1, Cmd+Shift+2 press button 2, etc. Is there any way to achieve this in Cocoa (with Objectiv...
counter = [myArray count]; for (i = 0 ; i < count ; i++) { [[anotherArray objectAtIndex:i] setTitle:[myArray objectAtIndex:i]]; } I would like to do it the objective C 2.0 way but can't seem to find how to access the index 'i' (if that's possible anyway). for (NSString *myString in myArray) { [[anotherArray objectAtIndex:i]...
I have already read other similar question about that problem, but that don't work for me. I'm building an iPhone app that talks with a TCP server (windows, but never mind) and I'm using AsyncSocket from cocoaasyncsocket (googlecode). It's a very useful class, but I can't use that at all. In my code I create a "connector" which I all...
This issue is giving me serious headaches, I don't have a clue what's going on here. If you don't have any experience with the Windows Live network, I ask you to read this anyway, maybe it has nothing to do with it and am I overlooking something totally unrelated. In short: I wrote an Objective-C class that allows me to connect to the W...
I've got a function that returns a std::string object. I'm working with Cocoa/CoreGraphics and I need a way to get the data from that string into a CFData object so that I can feed that into a CGDataProviderCreateWithCFData object to make a CGImage. The CreateCFData function wants a const UInt8* object (UInt8 being a typedef for unsign...
Hi everyone, I store a float number in my SQLite (through core data) like this: unit.conversion = [NSNumber numberWithFloat:0.001]; When I look at the SQLite database the value is 0.0010000000474974513 unit.conversion is an optional float in my datamodel... What's wrong with that? Thanks ...
I'm trying to implement a technique similar to the one in the ImageBrowserViewAppearance sample code from Apple (located here: http://developer.apple.com/library/mac/#samplecode/ImageBrowserViewAppearance/Introduction/Intro.html ), where CALayers are generated on top of the items in the IKImageBrowserView to customize the appearances of ...
I'm trying to build a super-simple Cocoa app, basically one that has one function (for example, main()) with a while loop. It does some stuff, does a curl request, then waits a few seconds before starting over. I've got my project all setup in XCode with all the necessary variables and functions, but I don't know where to put my main() ...
I have created a simple custom NSView (plugin item) When i do resize my NSView in interface builder - everything displays normally (black rect) But when i drag NSView to reposition it, nothing is displayed. What method should be implemented to fix this issue? -(void)drawRect:(NSRect)dirtyRect { [super drawRect:dirtyRect]; [NS...