Function spinNodeDeregisterCallback 

pub unsafe extern "C" fn spinNodeDeregisterCallback(
    hNode: spinNodeHandle,
    hCb: spinNodeCallbackHandle,
) -> spinError

Unregisters a callback from a node @see spinError

@param hNode The node from which to unregister the callback @param hCb The callback handle to unregister

@return spinError The error code; returns SPINNAKER_ERR_SUCCESS (or 0) for no error