If you are doing the downloading then yes, it is possible.
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Question
verifying if a download complete ( DELPHI 7 interprise )
Hi everyone!
i need build a application :
the application need to check if a download as completed, and if download completed then move the downloaded file to other folder
for example, i'll download a test.txt, saved in c:\test\test.txt, when finished, application moves teste.txt to c:\testing\teste.txt
all downloads need to be controled...
its possible ?
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Answers
Well it depends. For example if it was an file on an HTTP server you could use this: http://www.scalabium.com/f
If it was on an FTP server you could use the Indy components(which you might already have, if not look here: http://www.indyproject.org
Each way you can download the file where you want it to begin with, and move it once it completes.
If you are attempting to move a file after it completes from some other application you would not know when it is complete unless that application was communicating with yours. Going by file size, open handles, date last modified isn't good enough.
the only sure way is a checksum, or similar
a CRC + datetime + filesize is also a good way
each file has content, which is most of the times unique
you calculate it with for example:
http://delphi.about.com/od
you set a calculated md5 on the server in a separate file for example:
downloadfile.md5
then after the download is complete, read calculate the md5 locally, compare to the server md5 and check the size
that should give a idea if the file downloaded is correct.
that is if md5 checksums are supplied by the supplier
http://www.pc-tools.net/wi
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by: malayali_tvmPosted on 2009-11-07 at 14:04:06ID: 25768248
try to use small .bat file