Retrieve the type of data passed by the child card upon closure.
BPS_API const char* navigator_event_get_card_closed_data_type(bps_event_t *event)
The NAVIGATOR_CHILD_CARD_CLOSED event that informed the parent application of the child card closure.
The navigator_event_get_card_closed_data_type() function extracts the type of data sent by the child card upon calling the navigator_card_close() function. Call this function in the parent application upon receiving a NAVIGATOR_CHILD_CARD_CLOSED event to identify the type of data in the child card's response message. This function doesn't copy data and the returned value is released once the bps_get_event() function is called again.
The type of the data passed from the child card upon success, NULL with errno set otherwise.