Dialogic® Global Call API Library Reference

etrieve the network call reference value — gc_GetNetCRV( )
returned is technology specific, see the technology-specific error header file(s) for the error
definition (for example, ccerr.h or isdnerr.h file for the ISDN call control library).
Example
/*
* Assume the following has been done:
* 1. device has been opened (e.g. :N_dtiB1T1:P_isdn, :N_dtiB1T2:P_isdn, etc...)
* 2. gc_WaitCall() has been issued to wait for a call.
* 3. gc_GetMetaEvent() or gc_GetMetaEventEx() (Windows) has been
* called to convert the event into metaevent.
* 4. a GCEV_OFFERED event has been detected.
*/
#include
#include
#include
#include
#include
METAEVENT metaevent;
int get_net_crv()
{
LINEDEV ldev; /* Line device */
CRN crn; /* call reference number */
int netcrv; /* Network Call Reference Value */
GC_INFO gc_error_info; /* GlobalCall error information data */
}
/*
* Do the following:
* 1. Get the CRN from the metaevent
* 2. Get the corresponding line device
* 3. Proceed to retrieve the Call Reference Value as shown below
*/
crn = metaevent.crn;
if(gc_CRN2LineDev(crn, &ldev) != GC_SUCCESS) {
/* process error return as shown */
gc_ErrorInfo( &gc_error_info );
printf ("Error: gc_CRN2LineDev() on crn: 0x%lx, GC ErrorValue: 0x%hx - %s,
CCLibID: %i - %s, CC ErrorValue: 0x%lx - %s\n",
crn, gc_error_info.gcValue, gc_error_info.gcMsg,
gc_error_info.ccLibId, gc_error_info.ccLibName,
gc_error_info.ccValue, gc_error_info.ccMsg);
return (gc_error_info.gcValue);
}
if(gc_GetNetCRV(crn, &netcrv) != GC_SUCCESS) {
/* process error return as shown */
gc_ErrorInfo( &gc_error_info );
printf ("Error: gc_GetNetCRV() on linedev: 0x%lx, GC ErrorValue: 0x%hx - %s,
CCLibID: %i - %s, CC ErrorValue: 0x%lx - %s\n",
ldev, gc_error_info.gcValue, gc_error_info.gcMsg,
gc_error_info.ccLibId, gc_error_info.ccLibName,
gc_error_info.ccValue, gc_error_info.ccMsg);
return (gc_error_info.gcValue);
}
return(0);
Dialogic ® Global Call API Library Reference — January 2008 175
Dialogic Corporation