usr/src/lib/libcurses/getch.c

/*
 * Copyright (c) 1981 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
static char sccsid[] = "@(#)getch.c     5.6 (Berkeley) %G%";
#endif /* not lint */

# include       "curses.ext"

/*
 *      This routine reads in a character from the window.
 *
 */
wgetch(win)
reg WINDOW      *win; {

        reg bool        weset = FALSE;
        reg char        inp;

        if (!win->_scroll && (win->_flags&_FULLWIN)
            && win->_curx == win->_maxx - 1 && win->_cury == win->_maxy - 1)
                return ERR;
# ifdef DEBUG
        fprintf(outf, "WGETCH: _echoit = %c, _rawmode = %c\n", _echoit ? 'T' : 'F', _rawmode ? 'T' : 'F');
# endif
        if (_echoit && !_rawmode) {
                cbreak();
                weset++;
        }
        inp = getchar();
# ifdef DEBUG
        fprintf(outf,"WGETCH got '%s'\n",unctrl(inp));
# endif
        if (_echoit) {
                mvwaddch(curscr, win->_cury + win->_begy,
                        win->_curx + win->_begx, inp);
                waddch(win, inp);
        }
        if (weset)
                nocbreak();
        return inp;
}