Dialogic 6.2 manual Finishes up when the infopkt stream is exhausted

Developing a Fax Application

for (;;)

{

BT_ZERO(args_fax); args_fax.s_ips = ips;

if ((ret = BfvFaxNextPage(lp, &args_fax)) <= 0 ) break;

BfvFaxSendPage(lp, &args_fax);

}

Loops through the infopkt stream, getting the next page and transmitting it to the driver.

BfvFaxEndOfDocument(lp, &args_fax);

Finishes up when the infopkt stream is exhausted.

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.

You can replace some low-level functions with a high-level function, for example:

BfvLineDialString	These low level functions are
BfvLineCallProgressEnable	replaced with the high level
BfvDataCP	function BfvLineOriginateCall.
BfvLineCallProgressDisable
BfvFaxSetLocalID	These low level functions are
BfvFaxBeginSend	replaced with the high level
BfvFaxGetRemoteInfo	function BfvFaxSend.
BfvFaxWaitForTraining
BfvFaxSendPage
BfvFaxEndOfDocument

Receiving a Fax Using Low-Level Infopkt Function Calls One way to receive a fax using the low-level infopkt 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 BTLINE pointer.

November 2009 68