Question

I’m developing a Winform application using c# to have something like photo kiosk that we can see in shopping mall.

I managed to find ways to capture image from webcam and store the captured image using easywebcam component. However, I want to have a photo frame around the webcam streaming video hence when the image is captured, the photo frame is included as well.

I have done research for days but still can’t get any idea for this. Can any guru enlighten me for this?

Answer 1

I’ve used AForge library for working with web cam from C# and I’ve liked how clean it’s API is.
Here the samples how to add timestamp to video, take snapshot, etc:
http://www.aforgenet.com/framework/samples/video.html

If I understand correctly, you need to have original frame when taking snapshot, so you make a copy of it before painting on frame:

Image lastUneditedFrame;

private void VideoSourcePlayer_NewFrame(object sender, ref Bitmap image)
    {
        if (lastUneditedFrame != null) 
        {
             lastUneditedFrame.Dispose();
        }

        lastUneditedFrame = image.Clone(new Rectangle(0, 0, image.Width, image.Height), image.PixelFormat);

        var graphics = Graphics.FromImage(image);

        // do the drawing of photo frame

        graphics.Dispose();
    }

// on snapshot button click, simply call lastUneditedFrame.Save();