Cheat Engine

nwongfeiying · Posted: Wed Apr 01, 2009 8:26 am Post subject: [C++] File transfer

What APIs do I use for creating file transfers? I can imagine using sockets, but do I literally send the file data over? There must be some kind of better method to doing it. I'm asking because I'm creating an auto-update for a program.

lurc · Posted: Wed Apr 01, 2009 9:12 am Post subject:

Yes you literally send data over lol. ReadFile, and send. There might be an easier method. What do you want to send it over? Ftp? Http?

tombana · Posted: Wed Apr 01, 2009 10:51 am Post subject:

TransmitFile() can be used to send files over winsock sockets. You can pass it the path of the file you want to send. I don't know about efficiency and I don't know if it checks if the data was send correctly (like a CRC check).

nwongfeiying · Posted: Wed Apr 01, 2009 11:51 am Post subject:

tombana · Posted: Wed Apr 01, 2009 1:25 pm Post subject:

Rembember that when you manually send the file over winsock you have to divide the file up into chunks of max 4 kb or so. Otherwise the winsock buffer can't hold the data.

nwongfeiying · Posted: Wed Apr 01, 2009 3:49 pm Post subject:

TransmitFile() doesn't require that, does it?

oib111 · Posted: Wed Apr 01, 2009 4:24 pm Post subject:

How else would you send it? And I suggest using TransmitFile if your a beginner with winsock. But if you know enough winsock I'm sure you can find a more efficient way.

nwongfeiying · Posted: Wed Apr 01, 2009 7:41 pm Post subject:

I think TransmitFile() is probably the best way to do it over winsock.

kitterz · Posted: Wed Apr 01, 2009 7:49 pm Post subject:

if you upload the files to a server/website, you can download them using

URLDownloadToFile()

nwongfeiying · Posted: Wed Apr 01, 2009 8:05 pm Post subject:

I could do that, but I probably won't. I like the idea of transferring from winsock better.