​OnVideoFrameBitmap usage

OnVideoFrameBitmap sample usage:

Bitmap bmp = new Bitmap(@"c:\vf\pics\1.jpg");

using (Graphics g = Graphics.FromImage(e.Frame))
{
    g.DrawImage(bmp, 0, 0, bmp.Width, bmp.Height);
    e.UpdateData = true;
}

bmp.Dispose();

Main idea – usage of Graphics to update existing Bitmap, Graphics object must be disposed, e.UpdateData must be set to true.