ncurses/lib_delwin.c

   1
   2 /***************************************************************************
   3 *                            COPYRIGHT NOTICE                              *
   4 ****************************************************************************
   5 *                ncurses is copyright (C) 1992-1995                        *
   6 *                          Zeyd M. Ben-Halim                               *
   7 *                          zmbenhal@netcom.com                             *
   8 *                          Eric S. Raymond                                 *
   9 *                          esr@snark.thyrsus.com                           *
  10 *                                                                          *
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  21
  22 /*
  23 **      lib_delwin.c
  24 **
  25 **      The routine delwin().
  26 **
  27 */
  28
  29 #include <curses.priv.h>
  30
  31 MODULE_ID("$Id: lib_delwin.c,v 1.8 1997/02/01 23:22:54 tom Exp $")
  32
  33 static bool have_children(WINDOW *win)
  34 {
  35         WINDOWLIST *p;
  36         for (p = _nc_windows; p != 0; p = p->next) {
  37                 if (p->win->_flags & _SUBWIN
  38                  && p->win->_parent == win)
  39                         return TRUE;
  40         }
  41         return FALSE;
  42 }
  43
  44 int delwin(WINDOW *win)
  45 {
  46         T((T_CALLED("delwin(%p)"), win));
  47
  48         if (win == 0
  49          || have_children(win))
  50                 returnCode(ERR);
  51
  52         if (win->_flags & _SUBWIN)
  53                 touchwin(win->_parent);
  54         else if (curscr != 0)
  55                 touchwin(curscr);
  56
  57         _nc_freewin(win);
  58
  59         returnCode(OK);
  60 }