[Interest] Watching files two ways

[Sensei]

Dear all,

I'm using QFileSystemWatcher to watch a list of files, checking for the 
existence of files.

Right now I can detect if a file changes, and it's ok. However, can I 
track if a file *comes back*?

For instance, if I rename a watched file "a.txt" and rename it to 
"b.txt", I get the slot running. Can I detect if the "b.txt" gets 
renamed back to "a.txt"?


Thanks & Cheers!