Thanks, Quincey, for taking the trouble to respond. I’m pleased to say that after far too many hours of going over the details of my code (and having to make a trip to our local Apple store to get my “magic mouse” replaced), it is now working correctly. I’ve been writing code for Macs off-and-on for 30 years, and once again I conclude that dogged persistence is an essential attribute. Undoubtedly, you know that, but I mention it for any newbs who might read this. Boyd
> On Sep 18, 2015, at 6:02 PM, Quincey Morris > <quinceymor...@rivergatesoftware.com> wrote: > > On Sep 18, 2015, at 16:40 , Boyd Collier <bcoll...@mail.sdsu.edu > <mailto:bcoll...@mail.sdsu.edu>> wrote: >> >> Any suggestions why this might be happening would be greatly appreciated. > > You should approach this systematically. > > 1. Is your app actually creating 2 window controllers? You can look at the > object pointer in the debugger, and see if you had different objects each > time. > > If there are multiple objects being created, are they being created serially > (one being disposed of before the other is created), or in parallel (both > created simultaneously)? > > 2. Is your app creating 2 documents? > > 3. If there is only 1 window controller object, you can start looking at > various pieces of nib-loading API (e.g. windowDidLoad, viewDidLoad, that sort > of thing) to find out you’re instantiating a nib twice, or triggering the > same machinery twice in the loading of a single nib. > > Also, keep in mind that it’s not impossible that Cocoa is creating an extra > document or window controller for its own purposes (e.g. as part of state > restoration, or file versioning, or something newer like handoff). This > *might* be the price of doing business, or it *might* indicate a problem in a > different area of your app that it’s not obvious you should look at. > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
