SDL_joystick.h

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/*
  Simple DirectMedia Layer
  Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.
*/

#ifndef _SDL_joystick_h
#define _SDL_joystick_h

#include "SDL_stdinc.h"
#include "SDL_error.h"

#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif

/* The joystick structure used to identify an SDL joystick */
struct _SDL_Joystick;
typedef struct _SDL_Joystick SDL_Joystick;

/* A structure that encodes the stable unique id for a joystick device */
typedef struct {
    Uint8 data[16];
} SDL_JoystickGUID;

typedef Sint32 SDL_JoystickID;


/* Function prototypes */
extern DECLSPEC int SDLCALL SDL_NumJoysticks(void);

extern DECLSPEC const char *SDLCALL SDL_JoystickNameForIndex(int device_index);

extern DECLSPEC SDL_Joystick *SDLCALL SDL_JoystickOpen(int device_index);

extern DECLSPEC const char *SDLCALL SDL_JoystickName(SDL_Joystick * joystick);

extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_JoystickGetDeviceGUID(int device_index);

extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_JoystickGetGUID(SDL_Joystick * joystick);

extern DECLSPEC void SDL_JoystickGetGUIDString(SDL_JoystickGUID guid, char *pszGUID, int cbGUID);

extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_JoystickGetGUIDFromString(const char *pchGUID);

extern DECLSPEC SDL_bool SDLCALL SDL_JoystickGetAttached(SDL_Joystick * joystick);

extern DECLSPEC SDL_JoystickID SDLCALL SDL_JoystickInstanceID(SDL_Joystick * joystick);

extern DECLSPEC int SDLCALL SDL_JoystickNumAxes(SDL_Joystick * joystick);

extern DECLSPEC int SDLCALL SDL_JoystickNumBalls(SDL_Joystick * joystick);

extern DECLSPEC int SDLCALL SDL_JoystickNumHats(SDL_Joystick * joystick);

extern DECLSPEC int SDLCALL SDL_JoystickNumButtons(SDL_Joystick * joystick);

extern DECLSPEC void SDLCALL SDL_JoystickUpdate(void);

extern DECLSPEC int SDLCALL SDL_JoystickEventState(int state);

extern DECLSPEC Sint16 SDLCALL SDL_JoystickGetAxis(SDL_Joystick * joystick,
                                                   int axis);

/* @{ */
#define SDL_HAT_CENTERED    0x00
#define SDL_HAT_UP      0x01
#define SDL_HAT_RIGHT       0x02
#define SDL_HAT_DOWN        0x04
#define SDL_HAT_LEFT        0x08
#define SDL_HAT_RIGHTUP     (SDL_HAT_RIGHT|SDL_HAT_UP)
#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)
/* @} */

extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetHat(SDL_Joystick * joystick,
                                                 int hat);

extern DECLSPEC int SDLCALL SDL_JoystickGetBall(SDL_Joystick * joystick,
                                                int ball, int *dx, int *dy);

extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetButton(SDL_Joystick * joystick,
                                                    int button);

extern DECLSPEC void SDLCALL SDL_JoystickClose(SDL_Joystick * joystick);


/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"

#endif /* _SDL_joystick_h */

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