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comparison include/SDL_joystick.h @ 337:9154ec9ca3d2

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Explicitly specify the SDL API calling convention (C by default)
author Sam Lantinga <slouken@libsdl.org>
date Thu, 11 Apr 2002 14:35:16 +0000
parents f6ffac90895c
children b8d311d90021
comparison
equal deleted inserted replaced
336:745873ea091f 337:9154ec9ca3d2
50 50
51 /* Function prototypes */ 51 /* Function prototypes */
52 /* 52 /*
53 * Count the number of joysticks attached to the system 53 * Count the number of joysticks attached to the system
54 */ 54 */
55 extern DECLSPEC int SDL_NumJoysticks(void); 55 extern DECLSPEC int SDLCALL SDL_NumJoysticks(void);
56 56
57 /* 57 /*
58 * Get the implementation dependent name of a joystick. 58 * Get the implementation dependent name of a joystick.
59 * This can be called before any joysticks are opened. 59 * This can be called before any joysticks are opened.
60 * If no name can be found, this function returns NULL. 60 * If no name can be found, this function returns NULL.
61 */ 61 */
62 extern DECLSPEC const char *SDL_JoystickName(int device_index); 62 extern DECLSPEC const char * SDLCALL SDL_JoystickName(int device_index);
63 63
64 /* 64 /*
65 * Open a joystick for use - the index passed as an argument refers to 65 * Open a joystick for use - the index passed as an argument refers to
66 * the N'th joystick on the system. This index is the value which will 66 * the N'th joystick on the system. This index is the value which will
67 * identify this joystick in future joystick events. 67 * identify this joystick in future joystick events.
68 * 68 *
69 * This function returns a joystick identifier, or NULL if an error occurred. 69 * This function returns a joystick identifier, or NULL if an error occurred.
70 */ 70 */
71 extern DECLSPEC SDL_Joystick *SDL_JoystickOpen(int device_index); 71 extern DECLSPEC SDL_Joystick * SDLCALL SDLCALL SDL_JoystickOpen(int device_index);
72 72
73 /* 73 /*
74 * Returns 1 if the joystick has been opened, or 0 if it has not. 74 * Returns 1 if the joystick has been opened, or 0 if it has not.
75 */ 75 */
76 extern DECLSPEC int SDL_JoystickOpened(int device_index); 76 extern DECLSPEC int SDLCALL SDL_JoystickOpened(int device_index);
77 77
78 /* 78 /*
79 * Get the device index of an opened joystick. 79 * Get the device index of an opened joystick.
80 */ 80 */
81 extern DECLSPEC int SDL_JoystickIndex(SDL_Joystick *joystick); 81 extern DECLSPEC int SDLCALL SDL_JoystickIndex(SDL_Joystick *joystick);
82 82
83 /* 83 /*
84 * Get the number of general axis controls on a joystick 84 * Get the number of general axis controls on a joystick
85 */ 85 */
86 extern DECLSPEC int SDL_JoystickNumAxes(SDL_Joystick *joystick); 86 extern DECLSPEC int SDLCALL SDL_JoystickNumAxes(SDL_Joystick *joystick);
87 87
88 /* 88 /*
89 * Get the number of trackballs on a joystick 89 * Get the number of trackballs on a joystick
90 * Joystick trackballs have only relative motion events associated 90 * Joystick trackballs have only relative motion events associated
91 * with them and their state cannot be polled. 91 * with them and their state cannot be polled.
92 */ 92 */
93 extern DECLSPEC int SDL_JoystickNumBalls(SDL_Joystick *joystick); 93 extern DECLSPEC int SDLCALL SDL_JoystickNumBalls(SDL_Joystick *joystick);
94 94
95 /* 95 /*
96 * Get the number of POV hats on a joystick 96 * Get the number of POV hats on a joystick
97 */ 97 */
98 extern DECLSPEC int SDL_JoystickNumHats(SDL_Joystick *joystick); 98 extern DECLSPEC int SDLCALL SDL_JoystickNumHats(SDL_Joystick *joystick);
99 99
100 /* 100 /*
101 * Get the number of buttons on a joystick 101 * Get the number of buttons on a joystick
102 */ 102 */
103 extern DECLSPEC int SDL_JoystickNumButtons(SDL_Joystick *joystick); 103 extern DECLSPEC int SDLCALL SDL_JoystickNumButtons(SDL_Joystick *joystick);
104 104
105 /* 105 /*
106 * Update the current state of the open joysticks. 106 * Update the current state of the open joysticks.
107 * This is called automatically by the event loop if any joystick 107 * This is called automatically by the event loop if any joystick
108 * events are enabled. 108 * events are enabled.
109 */ 109 */
110 extern DECLSPEC void SDL_JoystickUpdate(void); 110 extern DECLSPEC void SDLCALL SDL_JoystickUpdate(void);
111 111
112 /* 112 /*
113 * Enable/disable joystick event polling. 113 * Enable/disable joystick event polling.
114 * If joystick events are disabled, you must call SDL_JoystickUpdate() 114 * If joystick events are disabled, you must call SDL_JoystickUpdate()
115 * yourself and check the state of the joystick when you want joystick 115 * yourself and check the state of the joystick when you want joystick
116 * information. 116 * information.
117 * The state can be one of SDL_QUERY, SDL_ENABLE or SDL_IGNORE. 117 * The state can be one of SDL_QUERY, SDL_ENABLE or SDL_IGNORE.
118 */ 118 */
119 extern DECLSPEC int SDL_JoystickEventState(int state); 119 extern DECLSPEC int SDLCALL SDL_JoystickEventState(int state);
120 120
121 /* 121 /*
122 * Get the current state of an axis control on a joystick 122 * Get the current state of an axis control on a joystick
123 * The state is a value ranging from -32768 to 32767. 123 * The state is a value ranging from -32768 to 32767.
124 * The axis indices start at index 0. 124 * The axis indices start at index 0.
125 */ 125 */
126 extern DECLSPEC Sint16 SDL_JoystickGetAxis(SDL_Joystick *joystick, int axis); 126 extern DECLSPEC Sint16 SDLCALL SDL_JoystickGetAxis(SDL_Joystick *joystick, int axis);
127 127
128 /* 128 /*
129 * Get the current state of a POV hat on a joystick 129 * Get the current state of a POV hat on a joystick
130 * The return value is one of the following positions: 130 * The return value is one of the following positions:
131 */ 131 */
139 #define SDL_HAT_LEFTUP (SDL_HAT_LEFT|SDL_HAT_UP) 139 #define SDL_HAT_LEFTUP (SDL_HAT_LEFT|SDL_HAT_UP)
140 #define SDL_HAT_LEFTDOWN (SDL_HAT_LEFT|SDL_HAT_DOWN) 140 #define SDL_HAT_LEFTDOWN (SDL_HAT_LEFT|SDL_HAT_DOWN)
141 /* 141 /*
142 * The hat indices start at index 0. 142 * The hat indices start at index 0.
143 */ 143 */
144 extern DECLSPEC Uint8 SDL_JoystickGetHat(SDL_Joystick *joystick, int hat); 144 extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetHat(SDL_Joystick *joystick, int hat);
145 145
146 /* 146 /*
147 * Get the ball axis change since the last poll 147 * Get the ball axis change since the last poll
148 * This returns 0, or -1 if you passed it invalid parameters. 148 * This returns 0, or -1 if you passed it invalid parameters.
149 * The ball indices start at index 0. 149 * The ball indices start at index 0.
150 */ 150 */
151 extern DECLSPEC int SDL_JoystickGetBall(SDL_Joystick *joystick, int ball, int *dx, int *dy); 151 extern DECLSPEC int SDLCALL SDL_JoystickGetBall(SDL_Joystick *joystick, int ball, int *dx, int *dy);
152 152
153 /* 153 /*
154 * Get the current state of a button on a joystick 154 * Get the current state of a button on a joystick
155 * The button indices start at index 0. 155 * The button indices start at index 0.
156 */ 156 */
157 extern DECLSPEC Uint8 SDL_JoystickGetButton(SDL_Joystick *joystick, int button); 157 extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetButton(SDL_Joystick *joystick, int button);
158 158
159 /* 159 /*
160 * Close a joystick previously opened with SDL_JoystickOpen() 160 * Close a joystick previously opened with SDL_JoystickOpen()
161 */ 161 */
162 extern DECLSPEC void SDL_JoystickClose(SDL_Joystick *joystick); 162 extern DECLSPEC void SDLCALL SDL_JoystickClose(SDL_Joystick *joystick);
163 163
164 164
165 /* Ends C function definitions when using C++ */ 165 /* Ends C function definitions when using C++ */
166 #ifdef __cplusplus 166 #ifdef __cplusplus
167 } 167 }