Internet Direct (Indy) Version 9.0.2 Beta
IsWorking
Indicates if the Control or Data channel is in use for data transfer.

Description
IsWorking is a Boolean property that indicates if the Control or DataChannel for the FTP client is currently being used for an FTP data transfer. IsWorking is set to True in FTP Command reply handlers for RETR, LIST, NLST, and STAT prior to being a data transfer to the client. IsWorking is set to False when the transfer is completed or the DataChannel is closed during the operation.