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28 
29 /****************************************************************************
30  *  Author: Thomas E. Dickey                    1997-on                     *
31  ****************************************************************************/
32 
33 #include <curses.priv.h>
34 
35 MODULE_ID("$Id: define_key.c,v 1.10 2006/06/17 18:19:48 tom Exp $")
36 
37 NCURSES_EXPORT(int)
38 define_key(const char *str, int keycode)
39 {
40     int code = ERR;
41 
42     T((T_CALLED("define_key(%s,%d)"), _nc_visbuf(str), keycode));
43     if (SP == 0) {
44 	code = ERR;
45     } else if (keycode > 0) {
46 	if (str != 0) {
47 	    define_key(str, 0);
48 	} else if (has_key(keycode)) {
49 	    while (_nc_remove_key(&(SP->_keytry), (unsigned) keycode))
50 		code = OK;
51 	}
52 	if (str != 0) {
53 	    if (key_defined(str) == 0) {
54 		(void) _nc_add_to_try(&(SP->_keytry), str, (unsigned) keycode);
55 		code = OK;
56 	    } else {
57 		code = ERR;
58 	    }
59 	}
60     } else {
61 	while (_nc_remove_string(&(SP->_keytry), str))
62 	    code = OK;
63     }
64     returnCode(code);
65 }
66