eye_tracking_modes.c

#include <stdio.h>
#include "tobii_research_eyetracker.h"
 
void eye_tracking_modes_example(TobiiResearchEyeTracker* eyetracker) {
    char* initial_eye_tracking_mode = NULL;
 
    TobiiResearchStatus status = tobii_research_get_eye_tracking_mode(eyetracker, &initial_eye_tracking_mode);
 
    printf("The eye tracker's initial eye tracking mode is %s with status %i.\n", initial_eye_tracking_mode, status);
    {
        TobiiResearchEyeTrackingModes* all_eye_tracking_modes = NULL;
        size_t i = 0;
 
        status = tobii_research_get_all_eye_tracking_modes(eyetracker, &all_eye_tracking_modes);
 
        if (status == TOBII_RESEARCH_STATUS_OK) {
            for (; i < all_eye_tracking_modes->mode_count; i++) {
                status = tobii_research_set_eye_tracking_mode(eyetracker, all_eye_tracking_modes->modes[i]);
                printf("Eye tracking mode set to %s with status %i.\n", all_eye_tracking_modes->modes[i], status);
            }
 
            status = tobii_research_set_eye_tracking_mode(eyetracker, initial_eye_tracking_mode);
 
            printf("Eye tracking mode reset to %s with status %i.\n", initial_eye_tracking_mode, status);
 
            tobii_research_free_string(initial_eye_tracking_mode);
        } else {
            printf("tobii_research_get_all_eye_tracking_modes returned status %i.\n", status);
        }
 
        tobii_research_free_eye_tracking_modes(all_eye_tracking_modes);
    }
}