ncurses/lib_delch.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                           *
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  21
  22 /*
  23 **      lib_delch.c
  24 **
  25 **      The routine wdelch().
  26 **
  27 */
  28
  29 #include <curses.priv.h>
  30
  31 MODULE_ID("$Id: lib_delch.c,v 1.5 1997/02/01 23:18:18 tom Exp $")
  32
  33 int wdelch(WINDOW *win)
  34 {
  35 chtype  *temp1, *temp2;
  36 chtype  *end;
  37 chtype  blank = _nc_background(win);
  38
  39         T((T_CALLED("wdelch(%p)"), win));
  40
  41         end = &win->_line[win->_cury].text[win->_maxx];
  42         temp2 = &win->_line[win->_cury].text[win->_curx + 1];
  43         temp1 = temp2 - 1;
  44
  45         while (temp1 < end)
  46             *temp1++ = *temp2++;
  47
  48         *temp1 = blank;
  49
  50         win->_line[win->_cury].lastchar = win->_maxx;
  51
  52         if (win->_line[win->_cury].firstchar == _NOCHANGE
  53                                    || win->_line[win->_cury].firstchar > win->_curx)
  54             win->_line[win->_cury].firstchar = win->_curx;
  55
  56         _nc_synchook(win);
  57         returnCode(OK);
  58 }