annotate include/SDL_byteorder.h @ 1348:40d0975c1769

Date: Mon, 6 Feb 2006 11:41:04 -0500 From: "mystml@adinet.com.uy" Subject: [SDL] ALT-F4 using DirectX My game isn't getting SDL_QUIT when I press ALT-F4 using the DirectX driver; it does get SDL_QUIT when I press the red X in the window. I tracked this down to DX5_HandleMessage() in SDL_dx5events.c; WM_SYSKEYDOWN is being trapped and ignored which causes Windows not to post a WM_CLOSE, hence no SDL_QUIT is being generated. The relevant code is this : /* The keyboard is handled via DirectInput */ case WM_SYSKEYUP: case WM_SYSKEYDOWN: case WM_KEYUP: case WM_KEYDOWN: { /* Ignore windows keyboard messages */; } return(0); If I comment the WM_SYSKEYDOWN case, it falls through DefWindowProc() and ALT-F4 starts working again. I'm not sure about the best way to fix this. One option is handling ALT-F4 as a particular case somehow, but doesn't sound good. Another option would be to handle WM_SYSKEYDOWN separately and breaking instead of returning 0, so processing falls through and goes to DefWindowProc which does The Right Thing (TM). This seems to be the minimal change that makes ALT-F4 work and normal keyboard input continues to work. Does this sound reasonable? Am I overlooking anything? Do I submit a patch? --Gabriel
author Sam Lantinga <slouken@libsdl.org>
date Wed, 08 Feb 2006 17:19:43 +0000
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 /* Macros for determining the byte-order of this platform */
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24
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25 #ifndef _SDL_byteorder_h
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26 #define _SDL_byteorder_h
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27
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28 /* The two types of endianness */
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29 #define SDL_LIL_ENDIAN 1234
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30 #define SDL_BIG_ENDIAN 4321
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31
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32 #ifdef __linux__
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33 # include <endian.h>
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34 # if BYTE_ORDER == LITTLE_ENDIAN
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35 # define SDL_BYTEORDER SDL_LIL_ENDIAN
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36 # else
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37 # define SDL_BYTEORDER SDL_BIG_ENDIAN
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38 # endif
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39
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40 #else
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41
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42 /* Pardon the mess, I'm trying to determine the endianness of this host.
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43 I'm doing it by preprocessor defines rather than some sort of configure
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44 script so that application code can use this too. The "right" way would
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45 be to dynamically generate this file on install, but that's a lot of work.
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46 */
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47 #if (defined(__i386__) || defined(__i386)) || \
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48 defined(__ia64__) || defined(WIN32) || \
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49 (defined(__alpha__) || defined(__alpha)) || \
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50 (defined(__arm__) || defined(__thumb__)) || \
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51 (defined(__sh__) || defined(__sh64__)) || \
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52 (defined(__mips__) && defined(__MIPSEL__)) || \
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53 defined(__SYMBIAN32__) || defined(__x86_64__) || \
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54 defined(__OS2__) || defined(__LITTLE_ENDIAN__)
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55 #define SDL_BYTEORDER SDL_LIL_ENDIAN
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56 #else
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57 #define SDL_BYTEORDER SDL_BIG_ENDIAN
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58 #endif
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59
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60 #endif /* __linux__ */
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61
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62 #endif /* _SDL_byteorder_h */