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Current File : //proc/2/cwd/usr/share/doc/ncurses-devel-5.7/test/demo_keyok.c
/****************************************************************************
 * Copyright (c) 2002-2003,2006 Free Software Foundation, Inc.              *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
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 * "Software"), to deal in the Software without restriction, including      *
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 * copies of the Software, and to permit persons to whom the Software is    *
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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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