usr/src/lib/libcurses/screen/setcurscreen.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1988 AT&T */
  28 /*        All Rights Reserved   */
  29
  30 /*
  31  * University Copyright- Copyright (c) 1982, 1986, 1988
  32  * The Regents of the University of California
  33  * All Rights Reserved
  34  *
  35  * University Acknowledgment- Portions of this document are derived from
  36  * software developed by the University of California, Berkeley, and its
  37  * contributors.
  38  */
  39
  40 #pragma ident   "%Z%%M% %I%     %E% SMI"
  41
  42 /*LINTLIBRARY*/
  43
  44 #include <sys/types.h>
  45 #include "curses_inc.h"
  46
  47 SCREEN  *
  48 setcurscreen(SCREEN *new)
  49 {
  50         SCREEN  *rv = SP;
  51
  52         if (new != SP) {
  53
  54 #ifdef  DEBUG
  55                 if (outf)
  56                         fprintf(outf, "setterm: old %x, new %x\n", rv, new);
  57 #endif  /* DEBUG */
  58
  59                 SP = new;
  60                 if (new) {
  61                         (void) setcurterm(SP->tcap);
  62                         LINES = SP->lsize;
  63                         COLS = SP->csize;
  64                         TABSIZE = SP->tsize;
  65                         stdscr = SP->std_scr;
  66                         curscr = SP->cur_scr;
  67                         _virtscr = SP->virt_scr;
  68                 }
  69         }
  70         return (rv);
  71 }