slouken@0
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/*
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slouken@5535
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Simple DirectMedia Layer
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slouken@10737
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Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
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slouken@0
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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slouken@0
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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slouken@0
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/**
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* \file SDL_joystick.h
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*
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* Include file for SDL joystick event handling
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*
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philipp@10213
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* The term "device_index" identifies currently plugged in joystick devices between 0 and SDL_NumJoysticks(), with the exact joystick
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* behind a device_index changing as joysticks are plugged and unplugged.
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*
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* The term "instance_id" is the current instantiation of a joystick device in the system, if the joystick is removed and then re-inserted
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* then it will get a new instance_id, instance_id's are monotonically increasing identifiers of a joystick plugged in.
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*
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* The term JoystickGUID is a stable 128-bit identifier for a joystick device that does not change over time, it identifies class of
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* the device (a X360 wired controller for example). This identifier is platform dependent.
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*
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*
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*/
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#ifndef SDL_joystick_h_
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#define SDL_joystick_h_
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slouken@0
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slouken@1356
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#include "SDL_stdinc.h"
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#include "SDL_error.h"
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slouken@0
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#include "begin_code.h"
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \file SDL_joystick.h
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*
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* In order to use these functions, SDL_Init() must have been called
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* with the ::SDL_INIT_JOYSTICK flag. This causes SDL to scan the system
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* for joysticks, and load appropriate drivers.
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*
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* If you would like to receive joystick updates while the application
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* is in the background, you should set the following hint before calling
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* SDL_Init(): SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS
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*/
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slouken@0
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slouken@10636
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/**
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slouken@10636
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* The joystick structure used to identify an SDL joystick
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*/
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struct _SDL_Joystick;
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typedef struct _SDL_Joystick SDL_Joystick;
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/* A structure that encodes the stable unique id for a joystick device */
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typedef struct {
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Uint8 data[16];
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} SDL_JoystickGUID;
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/**
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* This is a unique ID for a joystick for the time it is connected to the system,
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* and is never reused for the lifetime of the application. If the joystick is
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* disconnected and reconnected, it will get a new ID.
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*
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* The ID value starts at 0 and increments from there. The value -1 is an invalid ID.
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*/
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typedef Sint32 SDL_JoystickID;
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slouken@6707
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slouken@9884
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typedef enum
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{
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SDL_JOYSTICK_TYPE_UNKNOWN,
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SDL_JOYSTICK_TYPE_GAMECONTROLLER,
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SDL_JOYSTICK_TYPE_WHEEL,
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SDL_JOYSTICK_TYPE_ARCADE_STICK,
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SDL_JOYSTICK_TYPE_FLIGHT_STICK,
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SDL_JOYSTICK_TYPE_DANCE_PAD,
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SDL_JOYSTICK_TYPE_GUITAR,
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SDL_JOYSTICK_TYPE_DRUM_KIT,
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SDL_JOYSTICK_TYPE_ARCADE_PAD,
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SDL_JOYSTICK_TYPE_THROTTLE
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} SDL_JoystickType;
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typedef enum
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{
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SDL_JOYSTICK_POWER_UNKNOWN = -1,
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SDL_JOYSTICK_POWER_EMPTY,
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SDL_JOYSTICK_POWER_LOW,
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SDL_JOYSTICK_POWER_MEDIUM,
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SDL_JOYSTICK_POWER_FULL,
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SDL_JOYSTICK_POWER_WIRED,
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SDL_JOYSTICK_POWER_MAX
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} SDL_JoystickPowerLevel;
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slouken@0
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/* Function prototypes */
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/**
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* Count the number of joysticks attached to the system right now
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*/
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extern DECLSPEC int SDLCALL SDL_NumJoysticks(void);
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/**
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* Get the implementation dependent name of a joystick.
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* This can be called before any joysticks are opened.
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* If no name can be found, this function returns NULL.
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*/
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extern DECLSPEC const char *SDLCALL SDL_JoystickNameForIndex(int device_index);
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/**
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* Return the GUID for the joystick at this index
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* This can be called before any joysticks are opened.
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*/
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extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_JoystickGetDeviceGUID(int device_index);
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/**
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* Get the USB vendor ID of a joystick, if available.
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* This can be called before any joysticks are opened.
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* If the vendor ID isn't available this function returns 0.
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*/
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extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetDeviceVendor(int device_index);
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/**
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* Get the USB product ID of a joystick, if available.
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* This can be called before any joysticks are opened.
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* If the product ID isn't available this function returns 0.
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*/
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extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetDeviceProduct(int device_index);
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/**
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* Get the product version of a joystick, if available.
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* This can be called before any joysticks are opened.
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* If the product version isn't available this function returns 0.
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*/
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extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetDeviceProductVersion(int device_index);
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/**
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* Get the type of a joystick, if available.
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* This can be called before any joysticks are opened.
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*/
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extern DECLSPEC SDL_JoystickType SDLCALL SDL_JoystickGetDeviceType(int device_index);
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/**
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* Get the instance ID of a joystick.
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slouken@10934
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* This can be called before any joysticks are opened.
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slouken@10934
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* If the index is out of range, this function will return -1.
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*/
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extern DECLSPEC SDL_JoystickID SDLCALL SDL_JoystickGetDeviceInstanceID(int device_index);
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/**
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* Open a joystick for use.
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philipp@9227
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* The index passed as an argument refers to the N'th joystick on the system.
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philipp@9569
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* This index is not the value which will identify this joystick in future
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philipp@9569
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* joystick events. The joystick's instance id (::SDL_JoystickID) will be used
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* there instead.
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*
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* \return A joystick identifier, or NULL if an error occurred.
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*/
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extern DECLSPEC SDL_Joystick *SDLCALL SDL_JoystickOpen(int device_index);
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/**
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* Return the SDL_Joystick associated with an instance id.
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*/
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icculus@9916
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extern DECLSPEC SDL_Joystick *SDLCALL SDL_JoystickFromInstanceID(SDL_JoystickID joyid);
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icculus@9916
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icculus@9916
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/**
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* Return the name for this currently opened joystick.
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* If no name can be found, this function returns NULL.
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*/
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extern DECLSPEC const char *SDLCALL SDL_JoystickName(SDL_Joystick * joystick);
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/**
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slouken@6690
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* Return the GUID for this opened joystick
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*/
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slouken@6738
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extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_JoystickGetGUID(SDL_Joystick * joystick);
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slouken@6690
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/**
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* Get the USB vendor ID of an opened joystick, if available.
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slouken@10595
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* If the vendor ID isn't available this function returns 0.
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slouken@10595
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*/
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slouken@10595
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extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetVendor(SDL_Joystick * joystick);
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slouken@10595
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slouken@10595
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/**
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slouken@10595
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* Get the USB product ID of an opened joystick, if available.
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slouken@10595
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* If the product ID isn't available this function returns 0.
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slouken@10595
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*/
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slouken@10595
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extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetProduct(SDL_Joystick * joystick);
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slouken@10595
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slouken@10595
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/**
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slouken@10595
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* Get the product version of an opened joystick, if available.
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slouken@10595
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* If the product version isn't available this function returns 0.
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slouken@10595
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*/
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slouken@10595
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extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetProductVersion(SDL_Joystick * joystick);
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slouken@10595
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slouken@10595
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/**
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slouken@10855
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* Get the type of an opened joystick.
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slouken@10855
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*/
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slouken@10855
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extern DECLSPEC SDL_JoystickType SDLCALL SDL_JoystickGetType(SDL_Joystick * joystick);
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slouken@10855
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slouken@10855
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/**
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icculus@6746
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* Return a string representation for this guid. pszGUID must point to at least 33 bytes
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icculus@6746
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* (32 for the string plus a NULL terminator).
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slouken@6690
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*/
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icculus@8028
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extern DECLSPEC void SDLCALL SDL_JoystickGetGUIDString(SDL_JoystickGUID guid, char *pszGUID, int cbGUID);
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slouken@6690
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slouken@6690
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/**
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slouken@10595
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* Convert a string into a joystick guid
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slouken@6690
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*/
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slouken@6738
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extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_JoystickGetGUIDFromString(const char *pchGUID);
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slouken@6690
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slouken@6707
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/**
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slouken@6707
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* Returns SDL_TRUE if the joystick has been opened and currently connected, or SDL_FALSE if it has not.
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slouken@6707
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*/
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slouken@6707
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extern DECLSPEC SDL_bool SDLCALL SDL_JoystickGetAttached(SDL_Joystick * joystick);
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slouken@6690
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slouken@6690
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/**
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slouken@6974
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* Get the instance ID of an opened joystick or -1 if the joystick is invalid.
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slouken@0
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*/
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slouken@6690
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extern DECLSPEC SDL_JoystickID SDLCALL SDL_JoystickInstanceID(SDL_Joystick * joystick);
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slouken@0
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slouken@3407
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/**
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slouken@3407
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* Get the number of general axis controls on a joystick.
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slouken@0
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*/
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slouken@1895
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extern DECLSPEC int SDLCALL SDL_JoystickNumAxes(SDL_Joystick * joystick);
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slouken@0
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slouken@3407
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/**
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slouken@3407
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* Get the number of trackballs on a joystick.
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slouken@7191
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*
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slouken@3407
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* Joystick trackballs have only relative motion events associated
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slouken@3407
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* with them and their state cannot be polled.
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slouken@0
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*/
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slouken@1895
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extern DECLSPEC int SDLCALL SDL_JoystickNumBalls(SDL_Joystick * joystick);
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slouken@0
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slouken@3407
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/**
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slouken@3407
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* Get the number of POV hats on a joystick.
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slouken@0
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247 |
*/
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slouken@1895
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248 |
extern DECLSPEC int SDLCALL SDL_JoystickNumHats(SDL_Joystick * joystick);
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slouken@0
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249 |
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slouken@3407
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250 |
/**
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slouken@3407
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251 |
* Get the number of buttons on a joystick.
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slouken@0
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252 |
*/
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slouken@1895
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253 |
extern DECLSPEC int SDLCALL SDL_JoystickNumButtons(SDL_Joystick * joystick);
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slouken@0
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254 |
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slouken@3407
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255 |
/**
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slouken@3407
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256 |
* Update the current state of the open joysticks.
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slouken@7191
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257 |
*
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slouken@3407
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* This is called automatically by the event loop if any joystick
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slouken@3407
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* events are enabled.
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slouken@0
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260 |
*/
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slouken@337
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261 |
extern DECLSPEC void SDLCALL SDL_JoystickUpdate(void);
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slouken@0
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262 |
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slouken@3407
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263 |
/**
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slouken@3407
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264 |
* Enable/disable joystick event polling.
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slouken@7191
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265 |
*
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slouken@3407
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266 |
* If joystick events are disabled, you must call SDL_JoystickUpdate()
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slouken@3407
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267 |
* yourself and check the state of the joystick when you want joystick
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slouken@3407
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* information.
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slouken@7191
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*
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slouken@3407
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* The state can be one of ::SDL_QUERY, ::SDL_ENABLE or ::SDL_IGNORE.
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slouken@0
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*/
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slouken@337
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272 |
extern DECLSPEC int SDLCALL SDL_JoystickEventState(int state);
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slouken@0
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273 |
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slouken@10724
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274 |
#define SDL_JOYSTICK_AXIS_MAX 32767
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slouken@10724
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275 |
#define SDL_JOYSTICK_AXIS_MIN -32768
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slouken@3407
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276 |
/**
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slouken@3407
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277 |
* Get the current state of an axis control on a joystick.
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slouken@7191
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278 |
*
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slouken@3407
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279 |
* The state is a value ranging from -32768 to 32767.
|
slouken@7191
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280 |
*
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slouken@3407
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281 |
* The axis indices start at index 0.
|
slouken@0
|
282 |
*/
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slouken@1895
|
283 |
extern DECLSPEC Sint16 SDLCALL SDL_JoystickGetAxis(SDL_Joystick * joystick,
|
slouken@1895
|
284 |
int axis);
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slouken@0
|
285 |
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slouken@3407
|
286 |
/**
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slouken@10752
|
287 |
* Get the initial state of an axis control on a joystick.
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slouken@10752
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288 |
*
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slouken@10752
|
289 |
* The state is a value ranging from -32768 to 32767.
|
slouken@10752
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290 |
*
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slouken@10752
|
291 |
* The axis indices start at index 0.
|
slouken@10752
|
292 |
*
|
slouken@10752
|
293 |
* \return SDL_TRUE if this axis has any initial value, or SDL_FALSE if not.
|
slouken@10752
|
294 |
*/
|
slouken@10752
|
295 |
extern DECLSPEC SDL_bool SDLCALL SDL_JoystickGetAxisInitialState(SDL_Joystick * joystick,
|
slouken@10752
|
296 |
int axis, Sint16 *state);
|
slouken@10752
|
297 |
|
slouken@10752
|
298 |
/**
|
slouken@3407
|
299 |
* \name Hat positions
|
slouken@0
|
300 |
*/
|
gabomdq@7678
|
301 |
/* @{ */
|
slouken@7191
|
302 |
#define SDL_HAT_CENTERED 0x00
|
philipp@9806
|
303 |
#define SDL_HAT_UP 0x01
|
slouken@7191
|
304 |
#define SDL_HAT_RIGHT 0x02
|
slouken@7191
|
305 |
#define SDL_HAT_DOWN 0x04
|
slouken@7191
|
306 |
#define SDL_HAT_LEFT 0x08
|
slouken@7191
|
307 |
#define SDL_HAT_RIGHTUP (SDL_HAT_RIGHT|SDL_HAT_UP)
|
slouken@7191
|
308 |
#define SDL_HAT_RIGHTDOWN (SDL_HAT_RIGHT|SDL_HAT_DOWN)
|
slouken@7191
|
309 |
#define SDL_HAT_LEFTUP (SDL_HAT_LEFT|SDL_HAT_UP)
|
slouken@7191
|
310 |
#define SDL_HAT_LEFTDOWN (SDL_HAT_LEFT|SDL_HAT_DOWN)
|
gabomdq@7678
|
311 |
/* @} */
|
slouken@3407
|
312 |
|
slouken@3407
|
313 |
/**
|
slouken@3407
|
314 |
* Get the current state of a POV hat on a joystick.
|
slouken@3407
|
315 |
*
|
slouken@3407
|
316 |
* The hat indices start at index 0.
|
slouken@7191
|
317 |
*
|
slouken@3407
|
318 |
* \return The return value is one of the following positions:
|
slouken@3407
|
319 |
* - ::SDL_HAT_CENTERED
|
slouken@3407
|
320 |
* - ::SDL_HAT_UP
|
slouken@3407
|
321 |
* - ::SDL_HAT_RIGHT
|
slouken@3407
|
322 |
* - ::SDL_HAT_DOWN
|
slouken@3407
|
323 |
* - ::SDL_HAT_LEFT
|
slouken@3407
|
324 |
* - ::SDL_HAT_RIGHTUP
|
slouken@3407
|
325 |
* - ::SDL_HAT_RIGHTDOWN
|
slouken@3407
|
326 |
* - ::SDL_HAT_LEFTUP
|
slouken@3407
|
327 |
* - ::SDL_HAT_LEFTDOWN
|
slouken@0
|
328 |
*/
|
slouken@1895
|
329 |
extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetHat(SDL_Joystick * joystick,
|
slouken@1895
|
330 |
int hat);
|
slouken@0
|
331 |
|
slouken@3407
|
332 |
/**
|
slouken@3407
|
333 |
* Get the ball axis change since the last poll.
|
slouken@7191
|
334 |
*
|
slouken@3407
|
335 |
* \return 0, or -1 if you passed it invalid parameters.
|
slouken@7191
|
336 |
*
|
slouken@3407
|
337 |
* The ball indices start at index 0.
|
slouken@0
|
338 |
*/
|
slouken@1895
|
339 |
extern DECLSPEC int SDLCALL SDL_JoystickGetBall(SDL_Joystick * joystick,
|
slouken@1895
|
340 |
int ball, int *dx, int *dy);
|
slouken@0
|
341 |
|
slouken@3407
|
342 |
/**
|
slouken@3407
|
343 |
* Get the current state of a button on a joystick.
|
slouken@7191
|
344 |
*
|
slouken@3407
|
345 |
* The button indices start at index 0.
|
slouken@0
|
346 |
*/
|
slouken@1895
|
347 |
extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetButton(SDL_Joystick * joystick,
|
slouken@1895
|
348 |
int button);
|
slouken@0
|
349 |
|
slouken@3407
|
350 |
/**
|
slouken@3407
|
351 |
* Close a joystick previously opened with SDL_JoystickOpen().
|
slouken@0
|
352 |
*/
|
slouken@1895
|
353 |
extern DECLSPEC void SDLCALL SDL_JoystickClose(SDL_Joystick * joystick);
|
slouken@0
|
354 |
|
slouken@9884
|
355 |
/**
|
icculus@9917
|
356 |
* Return the battery level of this joystick
|
icculus@9917
|
357 |
*/
|
slouken@9884
|
358 |
extern DECLSPEC SDL_JoystickPowerLevel SDLCALL SDL_JoystickCurrentPowerLevel(SDL_Joystick * joystick);
|
slouken@9884
|
359 |
|
slouken@0
|
360 |
/* Ends C function definitions when using C++ */
|
slouken@0
|
361 |
#ifdef __cplusplus
|
slouken@0
|
362 |
}
|
slouken@0
|
363 |
#endif
|
slouken@0
|
364 |
#include "close_code.h"
|
slouken@0
|
365 |
|
slouken@10638
|
366 |
#endif /* SDL_joystick_h_ */
|
slouken@1895
|
367 |
|
slouken@1895
|
368 |
/* vi: set ts=4 sw=4 expandtab: */
|