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Developing a Fax Application
November 2009 65
args_admin.config_file_name = "usrcnfig.cfg";
BfvLineReset(lp,&args_admin);
Resets the channel and sets the user-configured options selected in
the user-defined configuration file named, usrcnfig.cfg.
BT_ZERO(args_infopkt);
args_infopkt.fname = name;
args_infopkt.fmode = "r";
ips = BfvInfopktOpen(&args_infopkt);
Opens the infopkt-formatted file called name for reading and
transmission.
BT_ZERO(args_tel);
args_tel.phonenum = "w7814499009";
args_tel.call_protocol_code = CALL_PROTOCOL_FAX;
args_tel.func = userfunc;
args_tel.arg = userarg;
BfvLineOriginateCall(lp,&args_tel);
Dials the phone number, monitors call progress, calls the user
function to optionally decide when to terminate call progress.
BT_ZERO(args_fax);
args_fax.s_ips = ips;
args_fax.local_id = local_id;
BfvFaxSend(lp,&args_fax);
Transmits documents based on an infopkt stream.
BT_ZERO(args_infopkt);
args_infopkt.ips = ips;
BfvInfopktClose (&args_infopkt);
Closes the infopkt stream file after the file is sent.
BT_ZERO(args_admin);
BfvLineDetach (lp, &args_admin);
Frees all memory for the attached line and closes the device.
Receiving a Fax Using High-Level Function Calls A typical way to
receive a fax using the high-level fax function calls is demonstrated
below. Each function is presented in sequential order, and the action
it performs is described beneath it.
BT_ZERO(args_admin);
args_admin.unit = unit;
lp = BfvLineAttach(&args_admin);
Attaches to a free channel and gets a line pointer.