6#ifndef __SMARTLOCK_KEYPAD_IDL__ 
    7#define __SMARTLOCK_KEYPAD_IDL__ 
   18        constant 
int NO_ERROR           = 0;    
 
   19        constant 
int ERR_SLOT_EMPTY     = 1;    
 
 
int getPIN(out string pin)
Retrieve last entered PIN from keypad.
MetaData getMetaData()
Retrieve keypad metadata.
Common base for all events.
MetaData metaData
MetaData of this keypad.