| bang |  | The bang message functions the same as sending a non-zero number, causing the object to commence watching the file for changes. | 
| int | filewatch-flag (0 or non-zero) [int] 
 | Turns on the filewatch object. Sending a non-zero number causes the filewatch object to commence watching the file for changes. Sending a 0 causes the object to ignore changes to the file. | 
| anything | filepath/filename [list] 
 | A filepath or filename within the Max search path will set which file is to be watched by filepath. | 
| stop |  | The stop message functions the same as sending a 0, causing the object to ignore any file changes. |