diff options
Diffstat (limited to 'code/SDL12/include/SDL_joystick.h')
| -rw-r--r-- | code/SDL12/include/SDL_joystick.h | 92 |
1 files changed, 56 insertions, 36 deletions
diff --git a/code/SDL12/include/SDL_joystick.h b/code/SDL12/include/SDL_joystick.h index e4f72f1..d5135c3 100644 --- a/code/SDL12/include/SDL_joystick.h +++ b/code/SDL12/include/SDL_joystick.h @@ -1,6 +1,6 @@ /* SDL - Simple DirectMedia Layer - Copyright (C) 1997-2006 Sam Lantinga + Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public @@ -20,7 +20,9 @@ slouken@libsdl.org */ -/* Include file for SDL joystick event handling */ +/** @file SDL_joystick.h + * Include file for SDL joystick event handling + */ #ifndef _SDL_joystick_h #define _SDL_joystick_h @@ -34,97 +36,108 @@ extern "C" { #endif -/* In order to use these functions, SDL_Init() must have been called - with the SDL_INIT_JOYSTICK flag. This causes SDL to scan the system - for joysticks, and load appropriate drivers. -*/ +/** @file SDL_joystick.h + * @note In order to use these functions, SDL_Init() must have been called + * with the SDL_INIT_JOYSTICK flag. This causes SDL to scan the system + * for joysticks, and load appropriate drivers. + */ -/* The joystick structure used to identify an SDL joystick */ +/** The joystick structure used to identify an SDL joystick */ struct _SDL_Joystick; typedef struct _SDL_Joystick SDL_Joystick; - /* Function prototypes */ -/* +/** * Count the number of joysticks attached to the system */ extern DECLSPEC int SDLCALL SDL_NumJoysticks(void); -/* +/** * Get the implementation dependent name of a joystick. + * * This can be called before any joysticks are opened. * If no name can be found, this function returns NULL. */ extern DECLSPEC const char * SDLCALL SDL_JoystickName(int device_index); -/* - * Open a joystick for use - the index passed as an argument refers to +/** + * Open a joystick for use. + * + * @param[in] device_index + * The index passed as an argument refers to * the N'th joystick on the system. This index is the value which will * identify this joystick in future joystick events. * - * This function returns a joystick identifier, or NULL if an error occurred. + * @return This function returns a joystick identifier, or NULL if an error occurred. */ extern DECLSPEC SDL_Joystick * SDLCALL SDL_JoystickOpen(int device_index); -/* +/** * Returns 1 if the joystick has been opened, or 0 if it has not. */ extern DECLSPEC int SDLCALL SDL_JoystickOpened(int device_index); -/* +/** * Get the device index of an opened joystick. */ extern DECLSPEC int SDLCALL SDL_JoystickIndex(SDL_Joystick *joystick); -/* +/** * Get the number of general axis controls on a joystick */ extern DECLSPEC int SDLCALL SDL_JoystickNumAxes(SDL_Joystick *joystick); -/* +/** * Get the number of trackballs on a joystick + * * Joystick trackballs have only relative motion events associated * with them and their state cannot be polled. */ extern DECLSPEC int SDLCALL SDL_JoystickNumBalls(SDL_Joystick *joystick); -/* +/** * Get the number of POV hats on a joystick */ extern DECLSPEC int SDLCALL SDL_JoystickNumHats(SDL_Joystick *joystick); -/* +/** * Get the number of buttons on a joystick */ extern DECLSPEC int SDLCALL SDL_JoystickNumButtons(SDL_Joystick *joystick); -/* +/** * Update the current state of the open joysticks. + * * This is called automatically by the event loop if any joystick * events are enabled. */ extern DECLSPEC void SDLCALL SDL_JoystickUpdate(void); -/* +/** * Enable/disable joystick event polling. + * * If joystick events are disabled, you must call SDL_JoystickUpdate() * yourself and check the state of the joystick when you want joystick * information. - * The state can be one of SDL_QUERY, SDL_ENABLE or SDL_IGNORE. + * + * @param[in] state The state can be one of SDL_QUERY, SDL_ENABLE or SDL_IGNORE. */ extern DECLSPEC int SDLCALL SDL_JoystickEventState(int state); -/* +/** * Get the current state of an axis control on a joystick - * The state is a value ranging from -32768 to 32767. - * The axis indices start at index 0. + * + * @param[in] axis The axis indices start at index 0. + * + * @return The state is a value ranging from -32768 to 32767. */ extern DECLSPEC Sint16 SDLCALL SDL_JoystickGetAxis(SDL_Joystick *joystick, int axis); -/* - * Get the current state of a POV hat on a joystick - * The return value is one of the following positions: +/** + * @name Hat Positions + * The return value of SDL_JoystickGetHat() is one of the following positions: */ +/*@{*/ #define SDL_HAT_CENTERED 0x00 #define SDL_HAT_UP 0x01 #define SDL_HAT_RIGHT 0x02 @@ -134,25 +147,32 @@ extern DECLSPEC Sint16 SDLCALL SDL_JoystickGetAxis(SDL_Joystick *joystick, int a #define SDL_HAT_RIGHTDOWN (SDL_HAT_RIGHT|SDL_HAT_DOWN) #define SDL_HAT_LEFTUP (SDL_HAT_LEFT|SDL_HAT_UP) #define SDL_HAT_LEFTDOWN (SDL_HAT_LEFT|SDL_HAT_DOWN) -/* - * The hat indices start at index 0. +/*@}*/ + +/** + * Get the current state of a POV hat on a joystick + * + * @param[in] hat The hat indices start at index 0. */ extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetHat(SDL_Joystick *joystick, int hat); -/* +/** * Get the ball axis change since the last poll - * This returns 0, or -1 if you passed it invalid parameters. - * The ball indices start at index 0. + * + * @param[in] ball The ball indices start at index 0. + * + * @return This returns 0, or -1 if you passed it invalid parameters. */ extern DECLSPEC int SDLCALL SDL_JoystickGetBall(SDL_Joystick *joystick, int ball, int *dx, int *dy); -/* +/** * Get the current state of a button on a joystick - * The button indices start at index 0. + * + * @param[in] button The button indices start at index 0. */ extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetButton(SDL_Joystick *joystick, int button); -/* +/** * Close a joystick previously opened with SDL_JoystickOpen() */ extern DECLSPEC void SDLCALL SDL_JoystickClose(SDL_Joystick *joystick); |