I know Apple is not the only ressource out there, and many people create great videos in conferences and presentations. If someone knows a great video or podcast on the topics KVC or KVO, please let me know. I would be glad about it! Edit: Changed Title so it's more clear this is indeed programming related. KVO / KVC / MVC != KFC ...
Any help? Now can get NSSize, duration and its all. ...
To gain a better understanding, I think it would be great to watch every video available on the net. For me, training videos became sort of entertaining. I love them! And at the same time, it's the most productive form of "watching movies". Unfortunately, I tend to find videos from conferences or podcasts only by accident, so maybe you ...
I'm new in Core Data, and i got a problem i can't get my head around how to do "the right way" I'll try and examplify my problem. I got a entity Car. And a list of all the cars in my program. The cars have some attributes, but they are not predefined. So for each car i want to be able to define some properties. Therefore i have define...
Hello, I would like to add a custom view (a pager) in the dock, just before the trash and was wondering on how to perform a such task. Do you have any pointer to help me to start? Thanks in advance for your help :) regards, ...
Hi every one. I am new programmer in Obj-C and cocoa. Im a trying to write a framework which will be used to read a binary files (Flexible Image Transport System or FITS binary files, usually used by astronomers). The binary data, that I am interested to extract, can have various formats and I get its properties by reading the header of...
I want to write a program that monitors packets in and packets out, or in other words, network statistics. Is there any useful class in cocoa? I know there are some existed tools, but it will be a sub-routine of my program. So I must implement on my own. Thanks a lot! P.S. I only want to calculate one program / process 's statistics r...
I have an application thad loads in plugins that have their own UI. There is an IBOutlet called ContainerView in my AppDelegate. When the plugin loads, it puts its own view (that is stored in a xib in the plugin bundle) into the Container view like so [ContainerView addSubview:viewFromPlugin]; When the view loads, everything is fine ...
In my cocoa app, how can I load/scale my .icns file? In this case, I want to load up my 16x16 image. ...
Hi, I have a typical app with some settings in my options.nib. I can choose to turn on or off for the slideshow in options.nib. But how do I pass this variable to myOtherController? What is the typical method to solve this problem? ...
I have a question regarding using KVO-compliant methods to insert/remove objects from an array. I'm working through Aaron Hillegass' Cocoa Programming for Mac OS X and I saw the following line of code (in the insertObject:inEmployeesAtIndex: method: [[undoManager prepareWithInvocationTarget:self] removeObjectFromEmployeesAtIndex:index];...
I am using core data and am generating classes from my data model. I implement custom methods in these classes, however when i regenerate i generate over the top so i end up copying and pasting a bit. What i would like to do is split my implementation files ('.m') so i can have one header file with multiple '.m' files. then i can keep m...
Hi all, I am new to cocoa bindings so I tried to make a simple application which will simply calculate avg of employees salary and display it in a text field, using cocoa bindings. I followed these steps: Made the model class : Person with one property for now - @property (readwrite, assign) int salary; In the application delegate cl...
I'm in need of generating and viewing PDF/X-1a. After spending quite some time I came to the conclusion that the only way (hopefully someone will prove me wrong) to achieve this is to use Cocoa. More context: I need to generate PDF/X-1a, that is, all the fonts embeded, spot colors, overprint, ... preferably from Python. But the only lib...
Hobbyist Cocoa programmer here. Have been looking around all the usual places, but this seems relatively under-explained: I am writing something a little out of the ordinary. It is much simpler than, but similar to, a desktop publishing app. I want editable text boxes on a canvas, arbitrarily placed. This is document-based and I’d real...
I am trying to manipulate an image using a chain of CIFilters, and then examine each byte of the resulting image (bitmap). Long term, I do not need to display the resulting image (bitmap) -- I just need to "analyze" it in memory. But near-term I am displaying it on screen, to help with debugging. I have some "bitmap examination" cod...
Yesterday I read somewhere that NSTask isn't thread safe and that bothers me a lot, because I'm running a NSTask within a NSThread and is so far not experiencing any threading issues with it. My code is organized like this A: main thread -> B: worker thread -> C: worker task C: The worker task is a commandline program. B: The worker t...
Hi It seems that Objective C jumps thru hoops to make seemingly simple tasks extremely difficult. I simply need to create a sequence of strings, image1.jpg, image2.jpg, etc etc ie in a loop var imgString:String='image'+i+'.jpg; I assume a best practice is to use a NSMutableString with appendString method? What am I doing wrong?? NSM...
I have some processing in my Cocoa app that sometimes ends up calling through a hierarchy of data to do a bunch of work as the result of an event. Each small piece creates and destroys some resources. I don't want those resources around most of the time, but I would like to find a smart way of creating them before all the work and killin...
I have a table of draggable rows. I'm subclassing NSImageCell to render an image, mapped via bindings. How do I get a double-click event from this cell? ...