using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using AForge;
using AForge.Video;
using AForge.Video.DirectShow;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private FilterInfoCollection capture;
        private VideoCaptureDevice source;

        private void Form1_Load(object sender, EventArgs e)
        {
            capture = new FilterInfoCollection(FilterCategory.VideoInputDevice);
            foreach(FilterInfo Device in capture)
            {
                comboBox1.Items.Add(Device.Name);
            }
            comboBox1.SelectedIndex = 0;
            source = new VideoCaptureDevice();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            source = new VideoCaptureDevice(capture[comboBox1.SelectedIndex].MonikerString);
            source.NewFrame += new NewFrameEventHandler(VideoSource_NewFrame);
            source.Start();
        }

        private void VideoSource_NewFrame(object sender, NewFrameEventArgs e)
        {
            pictureBox1.Image = (Bitmap)e.Frame.Clone();
        }
    }
}