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annotate include/SDL_input.h @ 5004:0c72ae7b7cb2

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Added native atomic operations for Windows, Mac OS X, and gcc compiler intrinsics. Changed the CAS return value to bool, so it's efficient with OSAtomicCompareAndSwap32Barrier() Added an atomic test adapted from code by Michael Davidsaver
author Sam Lantinga <slouken@libsdl.org>
date Sun, 16 Jan 2011 15:16:39 -0800
parents 3e69e077cb95
children b530ef003506
rev   line source
4465
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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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18
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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 /**
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24 * \file SDL_input.h
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25 *
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26 * Include file for lowlevel SDL input device handling.
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27 *
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28 * This talks about individual devices, and not the system cursor. If you
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29 * just want to know when the user moves the pointer somewhere in your
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30 * window, this is NOT the API you want. This one handles things like
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31 * multi-touch, drawing tablets, and multiple, separate mice.
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32 *
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33 * The other API is in SDL_mouse.h
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34 */
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35
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36 #ifndef _SDL_input_h
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37 #define _SDL_input_h
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38
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39 #include "SDL_stdinc.h"
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40 #include "SDL_error.h"
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41 #include "SDL_video.h"
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42
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43 #include "begin_code.h"
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44 /* Set up for C function definitions, even when using C++ */
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45 #ifdef __cplusplus
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46 /* *INDENT-OFF* */
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47 extern "C" {
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48 /* *INDENT-ON* */
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49 #endif
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50
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51
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52 /* Function prototypes */
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53
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54 /* !!! FIXME: real documentation
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55 * - Redetect devices
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56 * - This invalidates all existing device information from previous queries!
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57 * - There is an implicit (re)detect upon SDL_Init().
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58 */
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59 extern DECLSPEC int SDLCALL SDL_RedetectInputDevices(void);
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60
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61 /**
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62 * \brief Get the number of mouse input devices available.
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63 */
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64 extern DECLSPEC int SDLCALL SDL_GetNumInputDevices(void);
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65
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66 /**
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67 * \brief Gets the name of a device with the given index.
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68 *
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69 * \param index is the index of the device, whose name is to be returned.
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70 *
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71 * \return the name of the device with the specified index
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72 */
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73 extern DECLSPEC const char *SDLCALL SDL_GetInputDeviceName(int index);
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74
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75
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76 extern DECLSPEC int SDLCALL SDL_IsDeviceDisconnected(int index);
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77
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78 /* Ends C function definitions when using C++ */
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79 #ifdef __cplusplus
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80 /* *INDENT-OFF* */
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81 }
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82 /* *INDENT-ON* */
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83 #endif
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84 #include "close_code.h"
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85
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86 #endif /* _SDL_mouse_h */
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87
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88 /* vi: set ts=4 sw=4 expandtab: */