On 2009 Dec 15, at 16:15, Graham Cox wrote:
> You should probably arrange for the thread to submit its undo tasks to the
> undo manager on the main thread,
Indeed, NSUndoManager is not thread-safe. I use one of the
-performSelectorOnMainThread... methods in this situation. Watch for deadloc
On 15/12/2009, at 1:02 PM, Scott Squires wrote:
> I have some image processing routines that are on another thread and undo
> objects are created.
>
> When these are done in a series by the user (several minutes apart) and an
> undo is preformed then one by one they are invoked from just one u
