Thanks a lot, seems to have cured things. I added a line to set the window delegate to nil before [myWindow close] and things are ok now. ---markus---

Sorry for the delay. As this is a pet project it had to stay in the back for some time now. Only today did I find the time to play with the app again and copy a crash dump. How I'd do this in Xcode or

Thanks, tried it but did not help. The box was checked, tried both ways, same crash.

Way back when I dabbled around with ObjC (that was in 2002!) I created a small app that shows images from disk. About a year ago I upgraded this app to 64bit and ARC. This went well after a bit of fla

Thanks, that was it. Just for the peace of my mind ... why? ---markus---

I have written a small Cocoa program that works in High Sierra but stopped working in Mojave. The program loads a graphics file from disk and displays it full screen. At the bottom it should write the