def callback(track_transfer_batch, entry, dest, done, total, fraction, user_param1, ...)
Emitted regularly throughout the transfer to allow progress bars and other UI elements to be updated.
track_transfer_batch : |
instance of RB.TrackTransferBatch that is emitting the signal |
entry : |
the RB.RhythmDBEntry being transferred |
dest : |
the destination URI for the transfer |
done : |
some measure of how much of the transfer is done |
total : |
the total amount of that same measure |
fraction : |
the fraction of the transfer that is done |
user_param1 : |
first user parameter (if any) specified with the connect() method |
... : |
additional user parameters (if any) |