Current File : //usr/share/doc/ncurses-devel-5.9/test/demo_keyok.c
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/*
* $Id: demo_keyok.c,v 1.5 2006/11/04 20:09:51 tom Exp $
*
* Demonstrate the keyok() function.
* Thomas Dickey - 2002/11/23
*/
#include <test.priv.h>
#if defined(NCURSES_VERSION) && NCURSES_EXT_FUNCS
int
main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
{
int lastch = ERR;
int ch;
WINDOW *win;
initscr();
(void) cbreak(); /* take input chars one at a time, no wait for \n */
(void) noecho(); /* don't echo input */
printw("Typing any function key will disable it, but typing it twice in\n");
printw("a row will turn it back on (just for a demo).");
refresh();
win = newwin(LINES - 2, COLS, 2, 0);
scrollok(win, TRUE);
keypad(win, TRUE);
wmove(win, 0, 0);
while ((ch = wgetch(win)) != ERR) {
const char *name = keyname(ch);
wprintw(win, "Keycode %d, name %s\n",
ch,
name != 0 ? name : "<null>");
wclrtoeol(win);
wrefresh(win);
if (ch >= KEY_MIN) {
keyok(ch, FALSE);
lastch = ch;
} else if (lastch >= KEY_MIN) {
keyok(lastch, TRUE);
}
}
endwin();
ExitProgram(EXIT_SUCCESS);
}
#else
int
main(void)
{
printf("This program requires the ncurses library\n");
ExitProgram(EXIT_FAILURE);
}
#endif
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