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Developing a Fax Application
November 2009 74
BT_ZERO(args_fax);
args_fax.local_id = "Id_string";
BfvFaxSetLocalID(lp,&args_fax);
Sets the local ID to transmit to the sending machine.
BT_ZERO(args_fax);
BfvFaxBeginReceive(lp, &args_fax);
Begins the Phase B handshaking procedure.
BfvFaxGetRemoteInfo (lp, &args_fax);
Waits for the remote to send its ID and capabilities.
Note: The previous phone call is terminated by the application if the
remote fax machine's ID does not match the expected value.
BfvFaxWaitForTraining (lp, &args_fax);
Waits for the completion of the Phase B handshaking process.
do
{
BT_ZERO(args_fax);
args_fax.buf = buf;
args_fax.size = size;
/* receive data into buffer */
if (BfvFaxReceiveData(lp,&args_fax) <= 0)
break;
/* Process buffer contents */
Process(buf);
}
Keeping track of the resolution of each page is the application's
responsibility.
When the function returns a 0 at exit from the loop, the application
must determine, from the value of args_fax.expect_another, if
there is another page to receive.
BfvFaxEndReception(lp, &args_fax);
Call this function when there are no more pages to receive.
BT_ZERO(args_admin);
BfvLineDetach (lp, &args_admin);
Frees all the memory for the attached line and closes the device.