98 lines
3.0 KiB
C
98 lines
3.0 KiB
C
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/* -*- Mode: C; tab-width: 4 -*- */
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/* blank --- blank screen */
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#if !defined( lint ) && !defined( SABER )
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static const char sccsid[] = "@(#)blank.c 5.00 2000/11/01 xlockmore";
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#endif
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/*-
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* Copyright (c) 1991 by Patrick J. Naughton.
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright notice appear in all copies and that
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* both that copyright notice and this permission notice appear in
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* supporting documentation.
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*
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* This file is provided AS IS with no warranties of any kind. The author
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* shall have no liability with respect to the infringement of copyrights,
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* trade secrets or any patents by this file or any part thereof. In no
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* event will the author be liable for any lost revenue or profits or
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* other special, indirect and consequential damages.
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*
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* Revision History:
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* 10-May-1997: Compatible with xscreensaver :) OK you probably should not
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* use this for xscreensaver but I could not resist.
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* 21-Mar-1996: Ron Hitchens <ron@idiom.com>
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* Bonehead alert. Don't blank during password prompting.
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* 19-Mar-1996: Ron Hitchens <ron@idiom.com>
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* Changed to activate X server's native screensaver.
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* On some devices, this will result in power saving "sleep"
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* mode, or video blanking.
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* 31-Aug-1990: Written.
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*/
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#ifdef STANDALONE
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#define PROGCLASS "Blank"
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#define HACK_INIT init_blank
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#define HACK_DRAW draw_blank
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#define blank_opts xlockmore_opts
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#define DEFAULTS "*delay: 1000000 \n"
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#include "xlockmore.h" /* in xscreensaver distribution */
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#else /* STANDALONE */
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#include "xlock.h" /* in xlockmore distribution */
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#endif /* STANDALONE */
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ModeSpecOpt blank_opts =
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{0, (XrmOptionDescRec *) NULL, 0, (argtype *) NULL, (OptionStruct *) NULL};
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#ifdef USE_MODULES
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const ModStruct blank_description =
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{"blank", "init_blank", "draw_blank", "release_blank",
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"refresh_blank", "init_blank", (char *) NULL, &blank_opts,
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3000000, 1, 1, 1, 64, 1.0, "",
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"Shows nothing but a black screen", 0, NULL};
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#endif
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extern Bool enablesaver;
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void
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init_blank(ModeInfo * mi)
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{
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MI_CLEARWINDOW(mi);
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/* Must set PreferBlanking, or XForceScreenSaver won't work */
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if (!MI_IS_INWINDOW(mi) && !MI_IS_INROOT(mi) && !enablesaver)
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XSetScreenSaver(MI_DISPLAY(mi), 0, 0, PreferBlanking, 0);
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}
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/* ARGSUSED */
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void
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draw_blank(ModeInfo * mi)
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{
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/* Leave the lights on while user types password */
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if (!MI_IS_INWINDOW(mi) && !MI_IS_INROOT(mi) && !enablesaver) {
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if (MI_IS_ICONIC(mi))
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XForceScreenSaver(MI_DISPLAY(mi), ScreenSaverReset);
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else
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XForceScreenSaver(MI_DISPLAY(mi), ScreenSaverActive);
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}
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}
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void
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release_blank(ModeInfo * mi)
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{
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/* clear screensaver settings, just in case */
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if (!MI_IS_INWINDOW(mi) && !MI_IS_INROOT(mi) && !enablesaver) {
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XForceScreenSaver(MI_DISPLAY(mi), ScreenSaverReset);
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XSetScreenSaver(MI_DISPLAY(mi), 0, 0, 0, 0);
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}
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}
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void
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refresh_blank(ModeInfo * mi)
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{
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/* Do nothing, it will refresh by itself :) */
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}
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