public void DoWork() { Bitmap frame = InputSource.GetInputFrame(); foreach (Bitmap marker in MarkerPairs.Keys) { if (MarkerDetector.Detecte(frame, marker)) { // 偵測到 marker MarkerPairs[marker].SetViewMatrix(MarkerDetector.ViewMatrix); MarkerPairs[marker].Render(); } else { // 沒有偵測到 marker } } }