Detect Virtual/Fake webcam

Question

Hello,
We are developing a WPF C# application which requires a webcam screen shot capture. For this we need to detect fake webcams and remove them from the list of camera devices. Any idea on how to distinguish real webcams from fake ones?
Thanks,
Nabil D.

Answer 1

Hello,
I want To show you how access To the camera with AForge libraries, download and extract libraries from 
http://www.aforgenet.com/framework/downloads.html
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using AForge.Video;
using AForge.Video.DirectShow;
namespace cam_aforge1
public partial class Form1 : Form
private bool DeviceExist = false;
private FilterInfoCollection videoDevices;
private VideoCaptureDevice videoSource = null;
public Form1()
InitializeComponent();
// get the devices name
private void getCamList()
try
videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
comboBox1.Items.Clear();
if (videoDevices.Count == 0)
throw new ApplicationException();
DeviceExist = true;
foreach (FilterInfo device in videoDevices)
comboBox1.Items.Add(device.Name);
comboBox1.SelectedIndex = 0; //make dafault to first cam
catch (ApplicationException)
DeviceExist = false;
comboBox1.Items.Add("No capture device on your system");
//refresh button
private void rfsh_Click(object sender, EventArgs e)
getCamList();
//toggle start and stop button
private void start_Click(object sender, EventArgs e)
if (start.Text == "&Start")
if (DeviceExist)
videoSource = new VideoCaptureDevice(videoDevices[comboBox1.SelectedIndex].MonikerString);
videoSource.NewFrame += new NewFrameEventHandler(video_NewFrame);
CloseVideoSource();
videoSource.DesiredFrameSize = new Size(160, 120);
//videoSource.DesiredFrameRate = 10;
videoSource.Start();
label2.Text = "Device running...";
start.Text = "&Stop";
timer1.Enabled = true;
else
label2.Text = "Error: No Device selected.";
else
if (videoSource.IsRunning)
timer1.Enabled = false;
CloseVideoSource();
label2.Text = "Device stopped.";
start.Text = "&Start";
//eventhandler if new frame is ready
private void video_NewFrame(object sender, NewFrameEventArgs eventArgs)
Bitmap img = (Bitmap)eventArgs.Frame.Clone();
//do processing here
pictureBox1.Image = img;
//close the device safely
private void CloseVideoSource()
if (!(videoSource == null))
if (videoSource.IsRunning)
videoSource.SignalToStop();
videoSource = null;
//get total received frame at 1 second tick
private void timer1_Tick(object sender, EventArgs e)
label2.Text = "Device running... " + videoSource.FramesReceived.ToString() + " FPS";
//prevent sudden close while device is running
private void Form1_FormClosed(object sender, FormClosedEventArgs e)
CloseVideoSource();