"Bear" <bear@nobody.com> wrote in message
news:45e39900@newsgroups.borland.com...
> I want to download via multi threads.
Then you need to run multiple FTP connections. A single connection
can only download 1 file at a time.
> Each download thread only download a Part via idFTP.
The FTP protocol does not support the type of fine tuning that is
required for such an operation. You can tell a download where to
start from, but not where to end. You would have better luck using
HTTP v1.1 instead, which supports ranged transfers.
> But idFTP will use TIdIOHandler.ReadStream:
So? TidFTP supports downloading files beginning at a specified
offset.
> It always set the Stream Size to the Position.
As it should be. It is making sure that the stream matches the data
that was actually transferred.
> How to avoid this?
You can't.
> Is there are feature to allow idFTP only download a part of a remote
> file to a part of a local file?
Not to the degree needed for what you are asking for.
Gambit
