Hello, I wrote codes to processing images on a second thread and the main thread displays and handles "progress dialog box". Because it is not possible to create a "UI thread" according to Cocoa framework, I had the main thread process the progress dialog box, while a second thread process images.
However, a problem occurred when I decided to create QuickTime movie files with the processed images on the second thread. It turned out that QuickTime movie can't be created on a second thread, which is not a main thread. An uncaught exception was raised QTMovie_QuickTime class must be initialized on the main thread. *** Terminating app due to uncaught exception 'QTMovieInitializedOnWrongThread', reason: 'QTMovie_QuickTime class must be initialized on the main thread.' Then, is there any code pattern or example to handle progress dialog and time consuming tasks in a main thread without blocking user interaction? Or a solution doesn't need to be confined in that model. If it can utilize a second thread, it is better. Can anyone share his/her idea with me? Thank you. JongAm Park_______________________________________________ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
