[RESOLVE]File Transfer using MSComm

[ccscabang]

Hi,

I'm trying to create an application that will perform a file transfer (like hyperterminal's XMODEM). Can somebody help me how/what is the command/protocol on sending/receiving files using only MSComm. Is this even possible?

I've found some codes (c and vb). its a big help since it discusses about how to upload and download the file. But as to sending it through the modem, none. Anyone got an idea?

Thanks.

[ccscabang]

Hello,

Thanks.... I've found a way already.

[WilmariB]

Hello, I am trying to do the same thing. If you could please give me an idea of how to do the file transfer using the MScomm control I would be very very thankful.

Wating for you response...

[ccscabang]

You'd have to establish a connection first. dial the number you are to transfer the file and stay connected with it, now you'll have a point to point access. then break the file to 128 bytes, add Start of Header (SOH), a block of number, a one's complement of that block of number, and the 128 bytes of data.

there are protocols though, i'd suggest you read this link at ddj.com:

http://www.ddj.com/documents/s=984/ddj9512c/9512c.htm

but you'd have to be registered with it. i only register for 6 months.