NSOperationMBS.Close

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
event	Cocoa Threading	MBS MacFrameworks Plugin	8.0	✅ Yes	❌ No	❌ No	❌ No

The event called just before the operation object is destroyed.

NSOperationMBS.Finished

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
event	Cocoa Threading	MBS MacFrameworks Plugin	8.0	✅ Yes	❌ No	❌ No	❌ No

The event called after work has finished.

This event is called asynchronously on the main thread, so you can do GUI stuff here to show the result.
Not called if object is released earlier.

NSOperationMBS.Open

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
event	Cocoa Threading	MBS MacFrameworks Plugin	8.0	✅ Yes	❌ No	❌ No	❌ No

The event called when the object is created.

Called on the main thread.

NSOperationMBS.Work

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
event	Cocoa Threading	MBS MacFrameworks Plugin	8.0	✅ Yes	❌ No	❌ No	❌ No

The event called for an operation to do the work.

You should test isCancelled regularly to see whether operation was cancelled.

Please read on the ThreadMBS.Work event for more details.
(NSOperationMBS is a Mac OS X feature, but the ThreadMBS class, does nearly the same on all platforms)