Mercurial > sdl-ios-xcode
annotate include/SDL_joystick.h @ 1674:7688a73b25b1 SDL-1.3
Finishing up keyboard code revamp, at least for now...
| author | Sam Lantinga <slouken@libsdl.org> |
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| date | Sun, 11 Jun 2006 05:27:10 +0000 |
| parents | 4da1ee79c9af |
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| rev | line source |
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| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 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 |
| 0 | 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. |
| 0 | 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 | |
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13 Lesser General Public License for more details. |
| 0 | 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 |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
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23 /** |
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24 * \file SDL_joystick.h |
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25 * |
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26 * Include file for SDL joystick event handling |
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27 */ |
| 0 | 28 |
| 29 #ifndef _SDL_joystick_h | |
| 30 #define _SDL_joystick_h | |
| 31 | |
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32 #include "SDL_stdinc.h" |
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33 #include "SDL_error.h" |
| 0 | 34 |
| 35 #include "begin_code.h" | |
| 36 /* Set up for C function definitions, even when using C++ */ | |
| 37 #ifdef __cplusplus | |
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38 /* *INDENT-OFF* */ |
| 0 | 39 extern "C" { |
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40 /* *INDENT-ON* */ |
| 0 | 41 #endif |
| 42 | |
| 43 /* In order to use these functions, SDL_Init() must have been called | |
| 44 with the SDL_INIT_JOYSTICK flag. This causes SDL to scan the system | |
| 45 for joysticks, and load appropriate drivers. | |
| 46 */ | |
| 47 | |
| 48 /* The joystick structure used to identify an SDL joystick */ | |
| 49 struct _SDL_Joystick; | |
| 50 typedef struct _SDL_Joystick SDL_Joystick; | |
| 51 | |
| 52 | |
| 53 /* Function prototypes */ | |
| 54 /* | |
| 55 * Count the number of joysticks attached to the system | |
| 56 */ | |
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57 extern DECLSPEC int SDLCALL SDL_NumJoysticks(void); |
| 0 | 58 |
| 59 /* | |
| 60 * Get the implementation dependent name of a joystick. | |
| 61 * This can be called before any joysticks are opened. | |
| 62 * If no name can be found, this function returns NULL. | |
| 63 */ | |
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64 extern DECLSPEC const char *SDLCALL SDL_JoystickName(int device_index); |
| 0 | 65 |
| 66 /* | |
| 67 * Open a joystick for use - the index passed as an argument refers to | |
| 68 * the N'th joystick on the system. This index is the value which will | |
| 69 * identify this joystick in future joystick events. | |
| 70 * | |
| 71 * This function returns a joystick identifier, or NULL if an error occurred. | |
| 72 */ | |
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73 extern DECLSPEC SDL_Joystick *SDLCALL SDL_JoystickOpen(int device_index); |
| 0 | 74 |
| 75 /* | |
| 76 * Returns 1 if the joystick has been opened, or 0 if it has not. | |
| 77 */ | |
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78 extern DECLSPEC int SDLCALL SDL_JoystickOpened(int device_index); |
| 0 | 79 |
| 80 /* | |
| 81 * Get the device index of an opened joystick. | |
| 82 */ | |
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83 extern DECLSPEC int SDLCALL SDL_JoystickIndex(SDL_Joystick * joystick); |
| 0 | 84 |
| 85 /* | |
| 86 * Get the number of general axis controls on a joystick | |
| 87 */ | |
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88 extern DECLSPEC int SDLCALL SDL_JoystickNumAxes(SDL_Joystick * joystick); |
| 0 | 89 |
| 90 /* | |
| 91 * Get the number of trackballs on a joystick | |
| 92 * Joystick trackballs have only relative motion events associated | |
| 93 * with them and their state cannot be polled. | |
| 94 */ | |
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95 extern DECLSPEC int SDLCALL SDL_JoystickNumBalls(SDL_Joystick * joystick); |
| 0 | 96 |
| 97 /* | |
| 98 * Get the number of POV hats on a joystick | |
| 99 */ | |
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100 extern DECLSPEC int SDLCALL SDL_JoystickNumHats(SDL_Joystick * joystick); |
| 0 | 101 |
| 102 /* | |
| 103 * Get the number of buttons on a joystick | |
| 104 */ | |
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105 extern DECLSPEC int SDLCALL SDL_JoystickNumButtons(SDL_Joystick * joystick); |
| 0 | 106 |
| 107 /* | |
| 108 * Update the current state of the open joysticks. | |
| 109 * This is called automatically by the event loop if any joystick | |
| 110 * events are enabled. | |
| 111 */ | |
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112 extern DECLSPEC void SDLCALL SDL_JoystickUpdate(void); |
| 0 | 113 |
| 114 /* | |
| 115 * Enable/disable joystick event polling. | |
| 116 * If joystick events are disabled, you must call SDL_JoystickUpdate() | |
| 117 * yourself and check the state of the joystick when you want joystick | |
| 118 * information. | |
| 119 * The state can be one of SDL_QUERY, SDL_ENABLE or SDL_IGNORE. | |
| 120 */ | |
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121 extern DECLSPEC int SDLCALL SDL_JoystickEventState(int state); |
| 0 | 122 |
| 123 /* | |
| 124 * Get the current state of an axis control on a joystick | |
| 125 * The state is a value ranging from -32768 to 32767. | |
| 126 * The axis indices start at index 0. | |
| 127 */ | |
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128 extern DECLSPEC Sint16 SDLCALL SDL_JoystickGetAxis(SDL_Joystick * joystick, |
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129 int axis); |
| 0 | 130 |
| 131 /* | |
| 132 * Get the current state of a POV hat on a joystick | |
| 133 * The return value is one of the following positions: | |
| 134 */ | |
| 135 #define SDL_HAT_CENTERED 0x00 | |
| 136 #define SDL_HAT_UP 0x01 | |
| 137 #define SDL_HAT_RIGHT 0x02 | |
| 138 #define SDL_HAT_DOWN 0x04 | |
| 139 #define SDL_HAT_LEFT 0x08 | |
| 140 #define SDL_HAT_RIGHTUP (SDL_HAT_RIGHT|SDL_HAT_UP) | |
| 141 #define SDL_HAT_RIGHTDOWN (SDL_HAT_RIGHT|SDL_HAT_DOWN) | |
| 142 #define SDL_HAT_LEFTUP (SDL_HAT_LEFT|SDL_HAT_UP) | |
| 143 #define SDL_HAT_LEFTDOWN (SDL_HAT_LEFT|SDL_HAT_DOWN) | |
| 144 /* | |
| 145 * The hat indices start at index 0. | |
| 146 */ | |
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147 extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetHat(SDL_Joystick * joystick, |
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148 int hat); |
| 0 | 149 |
| 150 /* | |
| 151 * Get the ball axis change since the last poll | |
| 152 * This returns 0, or -1 if you passed it invalid parameters. | |
| 153 * The ball indices start at index 0. | |
| 154 */ | |
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155 extern DECLSPEC int SDLCALL SDL_JoystickGetBall(SDL_Joystick * joystick, |
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156 int ball, int *dx, int *dy); |
| 0 | 157 |
| 158 /* | |
| 159 * Get the current state of a button on a joystick | |
| 160 * The button indices start at index 0. | |
| 161 */ | |
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162 extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetButton(SDL_Joystick * joystick, |
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163 int button); |
| 0 | 164 |
| 165 /* | |
| 166 * Close a joystick previously opened with SDL_JoystickOpen() | |
| 167 */ | |
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168 extern DECLSPEC void SDLCALL SDL_JoystickClose(SDL_Joystick * joystick); |
| 0 | 169 |
| 170 | |
| 171 /* Ends C function definitions when using C++ */ | |
| 172 #ifdef __cplusplus | |
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173 /* *INDENT-OFF* */ |
| 0 | 174 } |
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175 /* *INDENT-ON* */ |
| 0 | 176 #endif |
| 177 #include "close_code.h" | |
| 178 | |
| 179 #endif /* _SDL_joystick_h */ | |
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180 |
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181 /* vi: set ts=4 sw=4 expandtab: */ |