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Developing a Fax Application
November 2009 81
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.
Sending a Noninfopkt-Formatted Fax Stored in MMR Format
One way to send a fax using function calls for noninfopkt-formatted
raw G3 files is demonstrated below. Each function is presented in
sequential order, and the action it performs is described beneath it.
This example sends a one-page fax whose page and strip data are
stored in noninfopkt-formatted files. The page consists of a Group 3
document (mmrdoc.g3) that is stored on disk in MMR format.
The application controls the format of images sent to the channel;
this format is independent of the format of data transmitted by the
channel.
BT_ZERO(args_admin);
args_admin.unit = unit;
lp = BfvLineAttach(&args_admin);
Attaches to a free channel and gets a line pointer.
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_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, and calls the user
function to optionally decide when to terminate call progress.
BT_ZERO(args_t30);
args_t30.bit_rate = BITRATE_14400;
args_t30.scan_time = SCANTIME_0;
BfvFaxT30Params(lp,&args_t30);
Configures the channel's maximum transmission rate. This function
is optional.
BT_ZERO(args_page);
args_page.top_margin = 0;
args_page.bottom_margin = 0;