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Detect Webcam Programmatically In C#

1. First of all download the DLLs from AForge.NET website - ‘http://www.aforgenet.com/framework/downloads.html’
2. Once the DLLs are downloaded lets create a windows based application (You can use console based application as well). See the screenshot below for project structure

Click to Enlarge


3. Add the reference of following DLLs in the project
   1. AForge.Video.dll
   2. AForge.Video.DirectShow
4. Add following name space in ‘Form1.cs’

using AForge.Video.DirectShow;




5. Add a button on the screen with the caption ‘Detect’ and write the following code on button click event

private FilterInfoCollection devices;
string IsWebCamExists = "NOT EXIST";
private void btnDetectWebcam_Click(object sender, EventArgs e) {
  devices = new FilterInfoCollection(FilterCategory.VideoInputDevice);

  if (devices.Count > 0)
    IsWebCamExists = "EXIST";

  MessageBox.Show(string.Format("Webcam Status: {0}", IsWebCamExists));
}