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30 * $Id: demo_keyok.c,v 1.9 2022/12/10 23:31:31 tom Exp $
32 * Demonstrate the keyok() function.
33 * Thomas Dickey - 2002/11/23
36 #include <test.priv.h>
38 #if defined(NCURSES_VERSION) && NCURSES_EXT_FUNCS
42 static const char *msg[] =
44 "Usage: demo_keyok [options]"
50 for (n = 0; n < SIZEOF(msg); n++)
51 fprintf(stderr, "%s\n", msg[n]);
53 ExitProgram(ok ? EXIT_SUCCESS : EXIT_FAILURE);
60 main(int argc, char *argv[])
67 while ((ch = getopt(argc, argv, OPTS_COMMON)) != -1) {
71 ExitProgram(EXIT_SUCCESS);
73 usage(ch == OPTS_USAGE);
80 setlocale(LC_ALL, "");
82 (void) cbreak(); /* take input chars one at a time, no wait for \n */
83 (void) noecho(); /* don't echo input */
85 printw("Typing any function key will disable it, but typing it twice in\n");
86 printw("a row will turn it back on (just for a demo).");
89 win = newwin(LINES - 2, COLS, 2, 0);
94 while ((ch = wgetch(win)) != ERR) {
95 const char *name = keyname(ch);
96 if (ch == ESCAPE && prior == ch)
99 wprintw(win, "Keycode %d, name %s\n",
101 name != 0 ? name : "<null>");
107 } else if (lastch >= KEY_MIN) {
112 ExitProgram(EXIT_SUCCESS);
118 printf("This program requires the ncurses library\n");
119 ExitProgram(EXIT_FAILURE);