Restart/Resume FTP Download

Resume downloading a file from an FTP server.

Download Chilkat FTP2 ActiveX

LOCAL loFtp
LOCAL lnSuccess
LOCAL lcLocalFilename
LOCAL lcRemoteFilename

loFtp = CreateObject('Chilkat.Ftp2')

*  Any string unlocks the component for the 1st 30-days.
lnSuccess = loFtp.UnlockComponent("Anything for 30-day trial")
IF (lnSuccess <> 1) THEN
    =MESSAGEBOX(loFtp.LastErrorText)
    QUIT
ENDIF

loFtp.Hostname = "ftp.chilkatsoft.com"
loFtp.Username = "****"
loFtp.Password = "****"

*  Connect and login to the FTP server.
lnSuccess = loFtp.Connect()
IF (lnSuccess <> 1) THEN
    =MESSAGEBOX(loFtp.LastErrorText)
    QUIT
ENDIF

*  Change to the remote directory where the file is located.
*  This step is only necessary if the file is not in the root directory
*  for the FTP account.
lnSuccess = loFtp.ChangeRemoteDir("temp")
IF (lnSuccess <> 1) THEN
    =MESSAGEBOX(loFtp.LastErrorText)
    QUIT
ENDIF

*  To resume a download, it is assumed that the partial file
*  is already present on the local filesystem.
*  You only need to set the RestartNext property to resume
*  the download.  The Chilkat FTP component sets the resume
*  point by getting the existing size of the target (local) file.
loFtp.RestartNext = 1

lcLocalFilename = "big.zip"

lcRemoteFilename = "big.zip"

*  Resume downloading...
lnSuccess = loFtp.GetFile(lcRemoteFilename,lcLocalFilename)
IF (lnSuccess <> 1) THEN
    =MESSAGEBOX(loFtp.LastErrorText)
    QUIT
ENDIF

loFtp.Disconnect()

=MESSAGEBOX("File Downloaded!")