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      1 /*
      2     SDL - Simple DirectMedia Layer
      3     Copyright (C) 1997-2006 Sam Lantinga
      4 
      5     This library is free software; you can redistribute it and/or
      6     modify it under the terms of the GNU Lesser General Public
      7     License as published by the Free Software Foundation; either
      8     version 2.1 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     Lesser General Public License for more details.
     14 
     15     You should have received a copy of the GNU Lesser General Public
     16     License along with this library; if not, write to the Free Software
     17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
     18 
     19     Sam Lantinga
     20     slouken (at) libsdl.org
     21 */
     22 
     23 /* Include file for SDL quit event handling */
     24 
     25 #ifndef _SDL_quit_h
     26 #define _SDL_quit_h
     27 
     28 #include "SDL_stdinc.h"
     29 #include "SDL_error.h"
     30 
     31 /*
     32   An SDL_QUITEVENT is generated when the user tries to close the application
     33   window.  If it is ignored or filtered out, the window will remain open.
     34   If it is not ignored or filtered, it is queued normally and the window
     35   is allowed to close.  When the window is closed, screen updates will
     36   complete, but have no effect.
     37 
     38   SDL_Init() installs signal handlers for SIGINT (keyboard interrupt)
     39   and SIGTERM (system termination request), if handlers do not already
     40   exist, that generate SDL_QUITEVENT events as well.  There is no way
     41   to determine the cause of an SDL_QUITEVENT, but setting a signal
     42   handler in your application will override the default generation of
     43   quit events for that signal.
     44 */
     45 
     46 /* There are no functions directly affecting the quit event */
     47 #define SDL_QuitRequested() \
     48         (SDL_PumpEvents(), SDL_PeepEvents(NULL,0,SDL_PEEKEVENT,SDL_QUITMASK))
     49 
     50 #endif /* _SDL_quit_h */
     51