Webcam shot

using System;
using AForge.Video.DirectShow;
using AForge.Video;
using System.Drawing;
using System.Drawing.Imaging;

namespace WebCam_Screenshot
{
    public class WebCamHandler
    {
        private FilterInfoCollection videoDevices;
        private VideoCaptureDevice videoSource;
        private Bitmap lastFrame;

        public WebCamHandler()
        {
            videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
            videoSource = new VideoCaptureDevice(videoDevices[0].MonikerString);
            videoSource.NewFrame += new NewFrameEventHandler(video_NewFrame);
        }

        public void getImage()
        {
            videoSource.Start();

            // Busy form of waiting
            while (lastFrame == null)
                ; // no-op

            videoSource.SignalToStop();
            videoSource.WaitForStop();
        }

        private void video_NewFrame(object sender, NewFrameEventArgs eventArgs)
        {

            lastFrame = eventArgs.Frame;
            lastFrame.Save("C:\\Users\\samue\\Documents\\immagini webcam\\img.png", ImageFormat.Png);
        }
    }
}