The GH_FileWatcher type exposes the following members.
Gets or sets the active flag on this watcher.
Gets or sets the time during which events are buffered. If multiple events for the same file occur within the buffered timespan, they will be merged into one event.
Gets or sets invoke behaviour for events. If true, then the event delegate is called via the Grasshopper main UI thread. This is almost always what you need.
Gets the file or folder path currently being watched.