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28/*
29 * $Id: demo_keyok.c,v 1.5 2006/11/04 20:09:51 tom Exp $
30 *
31 * Demonstrate the keyok() function.
32 * Thomas Dickey - 2002/11/23
33 */
34
35#include <test.priv.h>
36
37#if defined(NCURSES_VERSION) && NCURSES_EXT_FUNCS
38int
39main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
40{
41    int lastch = ERR;
42    int ch;
43    WINDOW *win;
44
45    initscr();
46    (void) cbreak();		/* take input chars one at a time, no wait for \n */
47    (void) noecho();		/* don't echo input */
48
49    printw("Typing any function key will disable it, but typing it twice in\n");
50    printw("a row will turn it back on (just for a demo).");
51    refresh();
52
53    win = newwin(LINES - 2, COLS, 2, 0);
54    scrollok(win, TRUE);
55    keypad(win, TRUE);
56    wmove(win, 0, 0);
57
58    while ((ch = wgetch(win)) != ERR) {
59	const char *name = keyname(ch);
60	wprintw(win, "Keycode %d, name %s\n",
61		ch,
62		name != 0 ? name : "<null>");
63	wclrtoeol(win);
64	wrefresh(win);
65	if (ch >= KEY_MIN) {
66	    keyok(ch, FALSE);
67	    lastch = ch;
68	} else if (lastch >= KEY_MIN) {
69	    keyok(lastch, TRUE);
70	}
71    }
72    endwin();
73    ExitProgram(EXIT_SUCCESS);
74}
75#else
76int
77main(void)
78{
79    printf("This program requires the ncurses library\n");
80    ExitProgram(EXIT_FAILURE);
81}
82#endif
83