usr/src/ucblib/libcurses/getch.c

   1 /*
   2  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
   3  * Use is subject to license terms.
   4  */
   5
   6 /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
   7 /*        All Rights Reserved   */
   8
   9 /*
  10  * Copyright (c) 1980 Regents of the University of California.
  11  * All rights reserved.  The Berkeley software License Agreement
  12  * specifies the terms and conditions for redistribution.
  13  */
  14
  15 #pragma ident   "%Z%%M% %I%     %E% SMI"
  16
  17 /*LINTLIBRARY*/
  18
  19 #ifndef lint
  20 static char
  21 sccsid[] = "@(#)getch.c 1.9 88/02/08 SMI"; /* from UCB 5.3 86/04/16 */
  22 #endif  /* not lint */
  23
  24 #include        "curses.ext"
  25
  26 /*
  27  *      This routine reads in a character from the window.
  28  */
  29
  30 int
  31 wgetch(WINDOW *win)
  32 {
  33         bool    weset = FALSE;
  34         char    inp;
  35
  36         if (!win->_scroll && (win->_flags&_FULLWIN) &&
  37             win->_curx == win->_maxx - 1 && win->_cury == win->_maxy - 1)
  38                 return (ERR);
  39 #ifdef DEBUG
  40         fprintf(outf, "WGETCH: _echoit = %c, _rawmode = %c\n",
  41                 _echoit ? 'T' : 'F', _rawmode ? 'T' : 'F');
  42 #endif
  43         if (_echoit && !_rawmode) {
  44                 cbreak();
  45                 weset++;
  46         }
  47         inp = getchar();
  48 #ifdef DEBUG
  49         fprintf(outf, "WGETCH got '%s'\n", unctrl(inp));
  50 #endif
  51         if (_echoit) {
  52                 (void) mvwaddch(curscr, win->_cury + win->_begy,
  53                         win->_curx + win->_begx, inp);
  54                 (void) waddch(win, inp);
  55         }
  56         if (weset)
  57                 nocbreak();
  58         return ((int)inp);
  59 }