====== onFileProgress() ======
wrtc.onFileProgress() is an event function repetitively called during file transfer, each time a new chunk of the file is received.

You can use this event to indicate to user the file transfer progress (eg with a progress bar).

===== Arguments =====
wrtc.onFileProgress(fileName, send, progressPercent, address)
  * fileName - string containing name of file being transferred
  * send - boolean:
    * true - file is being sent
    * false - file is being received
  * progressPercent - value 0-100 indicating how much of the file has been transferred
  * address - address of other end of file transfer (receiving end if send=true, sending end if send=false)

===== Return value =====
Ignored.

===== Also See =====
[[ixnx:wrtc:js:api:wrtc:onfilereceived|wrtc.onFileReceived()]]

[[ixnx:wrtc:js:api:wrtc:sendfile|wrtc.sendFile()]]