Function spinNodeIsReadable 

pub unsafe extern "C" fn spinNodeIsReadable(
    hNode: spinNodeHandle,
    pbResult: *mut bool8_t,
) -> spinError

Checks whether a node is readable @see spinError

@param hNode The node to check @param pbResult The boolean pointer to return whether or not the node is readable

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