static EventCallBackStruct getCallBackStruct(Hashtable map, int id) {
        Enumeration keys = map.keys();
        while (keys.hasMoreElements()) {
            String name = (String) keys.nextElement();
            EventCallBackStruct callback_struct =
                    (EventCallBackStruct) map.get(name);
            if (callback_struct.id == id)
                return callback_struct;
        }
        return null;
    }
static EventCallBackStruct getCallBackStruct ( Hashtable map , int id ) { Enumeration keys = map . keys ( ) ; while ( keys . hasMoreElements ( ) ) { String name = ( String ) keys . nextElement ( ) ; EventCallBackStruct callback_struct = ( EventCallBackStruct ) map . get ( name ) ; if ( callback_struct . id == id ) return callback_struct ; } return null ; }
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