| Interface | Description | 
|---|---|
| FrameCallback | 
 Callback that will be invoked from  
FrameGrabberRecognizer when it receives new frame for processing. | 
| Class | Description | 
|---|---|
| FrameGrabberRecognizer | 
 A recognizer that never produces a result, but sends every frame that it receives to given
  
FrameCallback. | 
| FrameGrabberRecognizer.Result |