Is it possible to get the Worker object from a task handle of the type IOmniTaskControl? For example, on a terminate event, I want to log details of which worker was affected.
IOmniTaskControl doesn't provide such functionality.
When you create new task, add its implementor and the IOmniTaskControl reference to some list/dictionary and then in OnTerminate look into that list/dictionary. (And don't forget to remove that entry from the list/dictionary or task controller won't be destroyed as the list/dictionary would keep a reference to it.)