OnVideoFrameBitmap event usage

Sample code

OnVideoFrameBitmap event 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;

Use "Graphics" to update the existing Bitmap. "Graphics" object must be disposed. "e.UpdateData" must be set to true.
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