Detect and Use Cameras

using System;
using System.Drawing;
using System.Windows.Forms;
using AForge.Video;
using AForge.Video.DirectShow;

public class CameraCapture
{
    private FilterInfoCollection videoDevices;
    private VideoCaptureDevice videoSource;

    public CameraCapture()
    {
        // Get available video devices
        videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);

        if (videoDevices.Count == 0)
        {
            Console.WriteLine("No video devices found.");
            return;
        }

        // Create instance of VideoCaptureDevice using the first available device
        videoSource = new VideoCaptureDevice(videoDevices[0].MonikerString);

        // Set NewFrame event handler to capture frames
        videoSource.NewFrame += new NewFrameEventHandler(videoSource_NewFrame);
    }

    public void StartCapture()
    {
        // Start capturing
        videoSource.Start();
    }

    public void StopCapture()
    {
        // Stop capturing
        videoSource.Stop();
    }

    private void videoSource_NewFrame(object sender, NewFrameEventArgs eventArgs)
    {
        // Process each captured frame here
        Bitmap frame = (Bitmap)eventArgs.Frame;

        // Display the frame (you can modify this according to your requirements)
        PictureBox pictureBox = new PictureBox();
        pictureBox.Image = frame;
        pictureBox.SizeMode = PictureBoxSizeMode.AutoSize;
        pictureBox.Refresh();
    }
}

public class Program
{
    static void Main(string[] args)
    {
        CameraCapture cameraCapture = new CameraCapture();

        if (cameraCapture.videoDevices.Count > 0)
        {
            // Start capturing from the first available camera
            cameraCapture.StartCapture();

            Console.WriteLine("Press Enter to stop capturing...");
            Console.ReadLine();

            // Stop capturing
            cameraCapture.StopCapture();
        }
        else
        {
            Console.WriteLine("No camera found.");
        }
    }
}