Voice API for HMP Library Reference - Dialogic

ATDX_STATE( ) — return the current state of the channel
� Cautions
This function extracts the current state from the driver and requires the same processing resources
as many other functions. For this reason, applications should not base their state machines on this
function.
� Errors
This function will fail and return AT_FAILURE if an invalid channel device handle is specified in
chdev.
� Example
#include
#include
#include
main()
{
int chdev;
long chstate;
}
/* Open the channel device */
if ((chdev = dx_open("dxxxB1C1",NULL)) == -1) {
/* Process error */
}
.
.
/* Examine state of the channel. Perform application specific action based
* on state of the channel
*/
if((chstate = ATDX_STATE(chdev)) == AT_FAILURE) {
/* Process error */
}
printf("current state of channel %s = %ld\n", ATDX_NAMEP(chdev), chstate);
.
.
� See Also
None.
44 Voice API for HMP Library Reference — September 2004