Detect Webcam using AForge

Hi,

I'm working on a game that needs to take picture with a webcam and then do some image analysis to determine the position of tokens.

For that I made a c# dll that use AForge library to detect webcam and do the analysis. It works when I try it on a c# application, but when I integrate the DLL in my game in Unity, it won't detect any webcam.

I built my dll and each dll of AForge in framework 3.5 x86.

Here the code that should find the webcam:

  // Code update
             // enumerate video devices
             FilterInfoCollection videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
 
             // create video source
             LogFile.Instance.Log("Count" + videoDevices.Count);
             _findCamera = false;
             for (int i = 0; i < videoDevices.Count; i++)
             {
                 LogFile.Instance.Log(videoDevices[i].Name.Trim());
                 if (videoDevices[i].Name.Trim() == CAM_NAME/*true*/) // Set "true" for tests with other camera.
                 {
                     _videoSource = new VideoCaptureDevice(videoDevices[i].MonikerString);
                     _findCamera = true;
                 }
             }
             if (_findCamera == false)
             {
                 return;
             }

While running in Unity, the videoDevices.count is 0.

I found a post that says that it won’t work, but it was said in 2011. Directshow seemed not to be supported.I hope there is a way now. http://forum.unity3d.com/threads/76860-C-script

By the way, I have no error message. Just that the program can't find the webcam.

Thank you for your help.