void free_device(data_t *data)
{
/* Close the connection to the device */
gestic_close(data->gestic);
/* Release resources that were associated with the gestic_t-instance */
gestic_cleanup(data->gestic);
/* Release the gestic_t-instance itself */
gestic_free(data->gestic);
}
int main() {
int i;
/* Create GestIC-Instance */
gestic_t *gestic = gestic_create();
/* Bitmask later used for starting a stream with SD- and position-data */
const int stream_flags = gestic_data_mask_position | gestic_data_mask_sd;
/* Pointer to the internal data-buffers */
const gestic_signal_t * sd = NULL;
const gestic_position_t * pos = NULL;
printf("GestIC-Stream-Demo version %s\n", gestic_version_str());
/* Initialize all variables and required resources of gestic */
gestic_initialize(gestic);
/* Aquire the pointers to the data-buffers */
sd = gestic_get_sd(gestic, 0);
pos = gestic_get_position(gestic, 0);
/* Try to open a connection to the device */
if(gestic_open(gestic) < 0) {
fprintf(stderr, "Could not open connection to device.\n");
return -1;
}
/* Try to reset the device to the default state:
* - Automatic calibration enabled
* - All frequencies allowed
* - Approach detection disabled
*/
if(gestic_set_auto_calibration(gestic, 1, 100) < 0 ||
gestic_select_frequencies(gestic, gestic_all_freq, 100) < 0 ||
gestic_set_approach_detection(gestic, 0, 100) < 0)
{
fprintf(stderr, "Could not reset device to default state.\n");
return -1;
}
/* Set output-mask to the bitmask defined above and stream all data */
if(gestic_set_output_enable_mask(gestic, stream_flags, stream_flags,
gestic_data_mask_all, 100) < 0)
{
fprintf(stderr, "Could not set output-mask for streaming.\n");
return -1;
}
/* Listens for about 10 seconds to incoming messages */
for(i = 0; i < 200; ++i) {
/* Try to fetch stream-data until no more messages are available*/
while(!gestic_data_stream_update(gestic, 0)) {
/* Output the position */
printf("Position: %5d %5d %5d\n", pos->x, pos->y, pos->z);
/* Output the SD-data */
printf("SD-Data: %5.0f %5.0f %5.0f %5.0f %5.0f\n",
sd->channel[0], sd->channel[1], sd->channel[2],
sd->channel[3], sd->channel[4]);
}
Sleep(50);
}
/* Close connection to device */
gestic_close(gestic);
/* Release further resources that were used by gestic */
gestic_cleanup(gestic);
gestic_free(gestic);
return 0;
}