Hi all, I have realised I’m having some subtle problems with images not being saved quite how I need them to be, and the problem seems to be caused by colorspace issues. Up until now I’ve kind of igno

> Do you suspect that throwing them on their own queue that you made would be an easy way to solve that? In terms of my own issue, the work items I'm dealing with are GUI-related so their natural home

This sounds very similar to problems I have encountered myself. Issue 1: GCD callbacks are part of an autorelease pool, but you can't rely on it getting drained in a reliable manner, so wrap your call

Dear all, Thanks for your replies. It turned out it wasn't due to a zombie pointer, though I did turn on that setting to check (hadn't thought of that as a possibility for this problem). After quite a

Hi all, Can anybody advise on the following exception/crash that I am encountering? The issue is: The problem is that as far as I can see this is something internal to AppKit, and I’m not sure what is

Thankyou both for your replies. I'm as sure as I can be that I'm not creating multiple timers, but I certainly checked for that. I appreciate that this is probably not the best design, due to the bloc

Hi all, I’ve been trying to figure out what happened on an overnight run of the code that drives our scientific experiment, and I’m seeing logs that imply that a timer has been firing much more rapidl

Thankyou Jens (and also Jon) for your reply. That was just what I was hoping for - an API that I didn’t even know where to look for (though obvious in retrospect!). That should do very nicely.

HiI all, I have a dictionary that has been loaded from a plist file, which has a deep structure of dictionaries within dictionaries. I would like to modify just one key-value pair deep in that hierarc

Hi all, At the moment I am saving tiff files in a one-liner using [[myNSImage TIFFRepresentation] writeToFile:atomically:]. I am considering a change to write rather large multi-page tiff files instea

(Belated) thankyou to the various very helpful replies I had to this question of mine. I think I understand it now, and can see what is not going to work with my setup. I still find the behaviour a li

Hi all, I have a property "velocity" that returns a custom object representing a 2D vector. That vector object has properties "x" and "y". From time to time, the value of velocity to be displayed will