Can't disable "finger touches" using EpdController

[vzukanov]

There is TouchUtils class in the demo app which, supposedly, disables finger touches using EpdController API:

public class TouchUtils {

    public static void disableFingerTouch(Context context) {
        boolean canFingerTouch = EpdController.isCTPPowerOn();
        if (canFingerTouch) {
            int width = context.getResources().getDisplayMetrics().widthPixels;
            int height = context.getResources().getDisplayMetrics().heightPixels;
            Rect rect = new Rect(0, 0, width, height);
            Rect[] arrayRect =new Rect[]{rect};
            EpdController.setAppCTPDisableRegion(context, arrayRect);
        }
    }

    public static void enableFingerTouch(Context context) {
        boolean canFingerTouch = !EpdController.isCTPPowerOn();
        if (!canFingerTouch) {
            EpdController.appResetCTPDisableRegion(context);
        }
    }
}

I tried to use the same approach in my app and it didn't work. Furthermore, I removed the calls to the aforementioned methods from your demo app and its behavior didn't change at all. So, it looks like these calls do nothing.

How can I disable "finger touches" programatically?