The GrabberListener class is the base class for all classes implementing a callback handler. A callback handler class has to be derived from GrabberListener and has to overwrite one or more callback methods. Every instance of a callback handler class has to be registered in Grabber by a call to Grabber::addListener. The available methods are:
Header File: tisudshl.h
This method is called when the list of available video capture devices has changed.
This method is called when the video capture device is lost, i.e. unplugged.
This method is called after the video capture device has copied a new frame into a memory buffer.
This method is called after the video capture device has delivered a new frame and allows modifications to the OverlayBitmap.
tListenerType enumerates the callback types supported by the Grabber.
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