include/SDL_quit.h

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FUNCTIONS

This source file includes following functions.
  1. SDL_QuitRequested

   1 /*
   2     SDL - Simple DirectMedia Layer
   3     Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
   4 
   5     This library is free software; you can redistribute it and/or
   6     modify it under the terms of the GNU Library General Public
   7     License as published by the Free Software Foundation; either
   8     version 2 of the License, or (at your option) any later version.
   9 
  10     This library is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13     Library General Public License for more details.
  14 
  15     You should have received a copy of the GNU Library General Public
  16     License along with this library; if not, write to the Free
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18 
  19     Sam Lantinga
  20     slouken@devolution.com
  21 */
  22 
  23 #ifdef SAVE_RCSID
  24 static char rcsid =
  25  "@(#) $Id: SDL_quit.h,v 1.3.2.2 2001/02/10 07:20:02 hercules Exp $";
  26 #endif
  27 
  28 /* Include file for SDL quit event handling */
  29 
  30 #ifndef _SDL_quit_h
  31 #define _SDL_quit_h
  32 
  33 /* 
  34   An SDL_QUITEVENT is generated when the user tries to close the application
  35   window.  If it is ignored or filtered out, the window will remain open.
  36   If it is not ignored or filtered, it is queued normally and the window
  37   is allowed to close.  When the window is closed, screen updates will 
  38   complete, but have no effect.
  39 
  40   SDL_Init() installs signal handlers for SIGINT (keyboard interrupt)
  41   and SIGTERM (system termination request), if handlers do not already
  42   exist, that generate SDL_QUITEVENT events as well.  There is no way
  43   to determine the cause of an SDL_QUITEVENT, but setting a signal
  44   handler in your application will override the default generation of
  45   quit events for that signal.
  46 */
  47 
  48 /* There are no functions directly affecting the quit event */
  49 #define SDL_QuitRequested() \
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  50         (SDL_PumpEvents(), SDL_PeepEvents(NULL,0,SDL_PEEKEVENT,SDL_QUITMASK))
  51 
  52 #endif /* _SDL_quit_h */

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