I think that should be an “or”: if you assign it to a non-local variable *or* pass it as a parameter. That’s because the block is implicitly moved to the heap (which is what a copy does) if the

I think ARC copies the block automatically if you assign it to a variable instead of just having it as a parameter of a function/method call. (A block really only gets copied once; it’s more like

Makes sense, but there’s a bit of a problem. To do that I’m going to have to create the block and keep a reference to it. That doesn’t seem to be how the GCD dispatch code snippet works - it

Oops, sorry, that was weird. Mail sent that message when I just closed the window, which wasn’t what I intended to happen. I was in the process of composing an extremely witty response, but it

Perhaps. :)

Oh wow, I didn't know about that method -- perhaps because my code predated 10.6. :) --Andy

If you mean “cancel” in the sense of “prevent it from starting”, then the answer is yes, you can use

Hi Gerriet, Try this: BOOL didSelect = [[NSWorkspace sharedWorkspace] selectFile:filePath inFileViewerRootedAtPath:containingDirPath]; -Andy

Hi all, Is there a way to cancel a scheduled block used with dispatch_after(…)? While I’m finding the functionality it offers really useful, it seems like as soon as you use it you have to

I just tried it again, and now Xcode told me that: “ Action ‘boxClicked:' sent by 'Check Box' is connected to 'File's Owner,' an invalid target (Objects inside view based table views may only be

It does indeed. Thanks very much for telling me. Kind regards, Gerriet.

Though in concept, I love the idea of KV observers, in practice, I’ve found that they lead to too many crashes. I’ve switched over to sending notifications and it’s much less to worry about and

Gerriet, I am doing the same thing now on iOS. Here’s what I am doing and am open to better approaches. Being able to do this requires a special set up where the cell contents are retrieved from

So, doesn’t NSWorkspace’s activateFileViewerSelecting method do that?

I want to have a Finder window with “/a/hugeFolder/someThin"g selected. [ NSWorkspace.sharedWorkspace openFile: @“/a/hugeFolder/someThing” withApplication: @“Finder" ] results in an

It was the app delegate. I found another solution: The contentArray contains only a few dictionaries - less than a dozen. So I decided to observe all of them: for( NSDictionary *d in

This ought to work, so I think you should focus on finding out why it isn’t. What are you specifying for the target? It should be something that doesn't depend on the cell itself, like the view

macOS 12.6 I have an ArrayController which has ContentArray bound to AppDelegate.contentArray The contentArray contains MutableDictionaries with a key “Flag”, value: boxed BOOL. And a TableView

Just after posting, a web search turned up this, which is I think what I was looking

Hi all, Can anyone link any sort of documentation that explains what all the stuff NSView does for printing does? I’m sure there used to be documentation explaining this but I just can’t find it.