private void b_dalej_Click(object sender, RoutedEventArgs e)
        {
            watek[6]     = false;
            wlacz_kinect = false;

            progressBar1.Visibility = Visibility.Hidden;

            if (watek_active)
            {
                t1.Abort();
                watek_active = false;
            }

            if (kinect_active)
            {
                Thread.Sleep(100);
                kinectSensor.Stop();

                foreach (var potentialSensor in KinectSensor.KinectSensors)
                {
                    if (potentialSensor.Status == KinectStatus.Disconnected)
                    {
                        kinectSensor = null;
                        break;
                    }
                }
                this.kinectSensor.SkeletonFrameReady -= this.nui_SkeletonFrameReady;
                this.kinectSensor.SkeletonStream.Disable();
            }

            //
            PrezentacjaCwiczenia a = new PrezentacjaCwiczenia();

            a.Wlacz(tryb, kinect_active, magia);
            a.Show();

            kinect_active = false;
            this.Close();

            Close();
        }
        private void b_dalej_Click(object sender, RoutedEventArgs e)
        {
            watek[6] = false;
            wlacz_kinect = false;

            progressBar1.Visibility = Visibility.Hidden;

            if (watek_active)
            {
                t1.Abort();
                watek_active = false;
            }

            if (kinect_active)
            {
                Thread.Sleep(100);
                kinectSensor.Stop();

                foreach (var potentialSensor in KinectSensor.KinectSensors)
                {
                    if (potentialSensor.Status == KinectStatus.Disconnected)
                    {
                        kinectSensor = null;
                        break;
                    }
                }
                this.kinectSensor.SkeletonFrameReady -= this.nui_SkeletonFrameReady;
                this.kinectSensor.SkeletonStream.Disable();
            }

            //
            PrezentacjaCwiczenia a = new PrezentacjaCwiczenia();
            a.Wlacz(tryb, kinect_active, magia);
            a.Show();

            kinect_active = false;
            this.Close();

            Close();
        }