1102 lines
39 KiB
C
1102 lines
39 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org>
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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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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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/**
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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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* 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 "player_index" is the number assigned to a player on a specific
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* controller. For XInput controllers this returns the XInput user index.
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* Many joysticks will not be able to supply this information.
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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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#ifndef SDL_joystick_h_
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#define SDL_joystick_h_
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#include <SDL3/SDL_stdinc.h>
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#include <SDL3/SDL_error.h>
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#include <SDL3/SDL_guid.h>
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#include <SDL3/SDL_mutex.h>
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#include <SDL3/SDL_properties.h>
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#include <SDL3/SDL_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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/**
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* The joystick structure used to identify an SDL joystick
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*/
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#ifdef SDL_THREAD_SAFETY_ANALYSIS
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extern SDL_Mutex *SDL_joystick_lock;
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#endif
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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 SDL_GUID 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 1 and increments from there. The value 0 is an invalid ID.
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*/
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typedef Uint32 SDL_JoystickID;
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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_GAMEPAD,
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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, /* <= 5% */
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SDL_JOYSTICK_POWER_LOW, /* <= 20% */
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SDL_JOYSTICK_POWER_MEDIUM, /* <= 70% */
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SDL_JOYSTICK_POWER_FULL, /* <= 100% */
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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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#define SDL_JOYSTICK_AXIS_MAX 32767
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#define SDL_JOYSTICK_AXIS_MIN -32768
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/* Set max recognized G-force from accelerometer
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See src/joystick/uikit/SDL_sysjoystick.m for notes on why this is needed
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*/
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#define SDL_IPHONE_MAX_GFORCE 5.0
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/* Function prototypes */
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/**
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* Locking for atomic access to the joystick API
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*
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* The SDL joystick functions are thread-safe, however you can lock the
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* joysticks while processing to guarantee that the joystick list won't change
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* and joystick and gamepad events will not be delivered.
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*
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* \since This function is available since SDL 3.0.0.
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*/
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extern DECLSPEC void SDLCALL SDL_LockJoysticks(void) SDL_ACQUIRE(SDL_joystick_lock);
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/**
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* Unlocking for atomic access to the joystick API
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*
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* \since This function is available since SDL 3.0.0.
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*/
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extern DECLSPEC void SDLCALL SDL_UnlockJoysticks(void) SDL_RELEASE(SDL_joystick_lock);
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/**
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* Return whether a joystick is currently connected.
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*
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* \returns SDL_TRUE if a joystick is connected, SDL_FALSE otherwise.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_GetJoysticks
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*/
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extern DECLSPEC SDL_bool SDLCALL SDL_HasJoystick(void);
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/**
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* Get a list of currently connected joysticks.
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*
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* \param count a pointer filled in with the number of joysticks returned
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* \returns a 0 terminated array of joystick instance IDs which should be
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* freed with SDL_free(), or NULL on error; call SDL_GetError() for
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* more details.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_HasJoystick
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* \sa SDL_OpenJoystick
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*/
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extern DECLSPEC SDL_JoystickID *SDLCALL SDL_GetJoysticks(int *count);
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/**
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* Get the implementation dependent name of a joystick.
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*
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* This can be called before any joysticks are opened.
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*
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* \param instance_id the joystick instance ID
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* \returns the name of the selected joystick. If no name can be found, this
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* function returns NULL; call SDL_GetError() for more information.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_GetJoystickName
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* \sa SDL_GetJoysticks
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*/
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extern DECLSPEC const char *SDLCALL SDL_GetJoystickInstanceName(SDL_JoystickID instance_id);
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/**
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* Get the implementation dependent path of a joystick.
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*
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* This can be called before any joysticks are opened.
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*
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* \param instance_id the joystick instance ID
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* \returns the path of the selected joystick. If no path can be found, this
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* function returns NULL; call SDL_GetError() for more information.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_GetJoystickPath
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* \sa SDL_GetJoysticks
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*/
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extern DECLSPEC const char *SDLCALL SDL_GetJoystickInstancePath(SDL_JoystickID instance_id);
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/**
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* Get the player index of a joystick.
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*
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* This can be called before any joysticks are opened.
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*
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* \param instance_id the joystick instance ID
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* \returns the player index of a joystick, or -1 if it's not available
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_GetJoystickPlayerIndex
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* \sa SDL_GetJoysticks
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*/
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extern DECLSPEC int SDLCALL SDL_GetJoystickInstancePlayerIndex(SDL_JoystickID instance_id);
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/**
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* Get the implementation-dependent GUID of a joystick.
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*
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* This can be called before any joysticks are opened.
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*
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* \param instance_id the joystick instance ID
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* \returns the GUID of the selected joystick. If called with an invalid
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* instance_id, this function returns a zero GUID.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_GetJoystickGUID
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* \sa SDL_GetJoystickGUIDString
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*/
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extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_GetJoystickInstanceGUID(SDL_JoystickID instance_id);
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/**
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* Get the USB vendor ID of a joystick, if available.
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*
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* This can be called before any joysticks are opened. If the vendor ID isn't
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* available this function returns 0.
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*
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* \param instance_id the joystick instance ID
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* \returns the USB vendor ID of the selected joystick. If called with an
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* invalid instance_id, this function returns 0.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_GetJoystickVendor
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* \sa SDL_GetJoysticks
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*/
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extern DECLSPEC Uint16 SDLCALL SDL_GetJoystickInstanceVendor(SDL_JoystickID instance_id);
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/**
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* Get the USB product ID of a joystick, if available.
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*
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* This can be called before any joysticks are opened. If the product ID isn't
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* available this function returns 0.
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*
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* \param instance_id the joystick instance ID
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* \returns the USB product ID of the selected joystick. If called with an
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* invalid instance_id, this function returns 0.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_GetJoystickProduct
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* \sa SDL_GetJoysticks
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*/
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extern DECLSPEC Uint16 SDLCALL SDL_GetJoystickInstanceProduct(SDL_JoystickID instance_id);
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/**
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* Get the product version of a joystick, if available.
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*
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* This can be called before any joysticks are opened. If the product version
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* isn't available this function returns 0.
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*
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* \param instance_id the joystick instance ID
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* \returns the product version of the selected joystick. If called with an
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* invalid instance_id, this function returns 0.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_GetJoystickProductVersion
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* \sa SDL_GetJoysticks
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*/
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extern DECLSPEC Uint16 SDLCALL SDL_GetJoystickInstanceProductVersion(SDL_JoystickID instance_id);
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/**
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* Get the type of a joystick, if available.
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*
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* This can be called before any joysticks are opened.
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*
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* \param instance_id the joystick instance ID
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* \returns the SDL_JoystickType of the selected joystick. If called with an
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* invalid instance_id, this function returns
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* `SDL_JOYSTICK_TYPE_UNKNOWN`.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_GetJoystickType
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* \sa SDL_GetJoysticks
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*/
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extern DECLSPEC SDL_JoystickType SDLCALL SDL_GetJoystickInstanceType(SDL_JoystickID instance_id);
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/**
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* Open a joystick for use.
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*
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* The joystick subsystem must be initialized before a joystick can be opened
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* for use.
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*
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* \param instance_id the joystick instance ID
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* \returns a joystick identifier or NULL if an error occurred; call
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* SDL_GetError() for more information.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_CloseJoystick
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*/
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extern DECLSPEC SDL_Joystick *SDLCALL SDL_OpenJoystick(SDL_JoystickID instance_id);
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/**
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* Get the SDL_Joystick associated with an instance ID, if it has been opened.
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*
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* \param instance_id the instance ID to get the SDL_Joystick for
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* \returns an SDL_Joystick on success or NULL on failure or if it hasn't been
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* opened yet; call SDL_GetError() for more information.
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*
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* \since This function is available since SDL 3.0.0.
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*/
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extern DECLSPEC SDL_Joystick *SDLCALL SDL_GetJoystickFromInstanceID(SDL_JoystickID instance_id);
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/**
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* Get the SDL_Joystick associated with a player index.
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*
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* \param player_index the player index to get the SDL_Joystick for
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* \returns an SDL_Joystick on success or NULL on failure; call SDL_GetError()
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* for more information.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_GetJoystickPlayerIndex
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* \sa SDL_SetJoystickPlayerIndex
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*/
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extern DECLSPEC SDL_Joystick *SDLCALL SDL_GetJoystickFromPlayerIndex(int player_index);
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/**
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* Attach a new virtual joystick.
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*
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* \param type type of joystick
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* \param naxes number of axes
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* \param nbuttons number of buttons
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* \param nhats number of hats
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* \returns the joystick instance ID, or 0 if an error occurred; call
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* SDL_GetError() for more information.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_AttachVirtualJoystickEx
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* \sa SDL_DetachVirtualJoystick
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*/
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extern DECLSPEC SDL_JoystickID SDLCALL SDL_AttachVirtualJoystick(SDL_JoystickType type,
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int naxes,
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int nbuttons,
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int nhats);
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/**
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* The structure that defines an extended virtual joystick description
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*
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* The caller must zero the structure and then initialize the version with `SDL_VIRTUAL_JOYSTICK_DESC_VERSION` before passing it to SDL_AttachVirtualJoystickEx()
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* All other elements of this structure are optional and can be left 0.
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*
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* \sa SDL_AttachVirtualJoystickEx
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*/
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typedef struct SDL_VirtualJoystickDesc
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{
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Uint16 version; /**< `SDL_VIRTUAL_JOYSTICK_DESC_VERSION` */
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Uint16 type; /**< `SDL_JoystickType` */
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Uint16 naxes; /**< the number of axes on this joystick */
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Uint16 nbuttons; /**< the number of buttons on this joystick */
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Uint16 nhats; /**< the number of hats on this joystick */
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Uint16 vendor_id; /**< the USB vendor ID of this joystick */
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Uint16 product_id; /**< the USB product ID of this joystick */
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Uint16 padding; /**< unused */
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Uint32 button_mask; /**< A mask of which buttons are valid for this controller
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e.g. (1 << SDL_GAMEPAD_BUTTON_SOUTH) */
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Uint32 axis_mask; /**< A mask of which axes are valid for this controller
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e.g. (1 << SDL_GAMEPAD_AXIS_LEFTX) */
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const char *name; /**< the name of the joystick */
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void *userdata; /**< User data pointer passed to callbacks */
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void (SDLCALL *Update)(void *userdata); /**< Called when the joystick state should be updated */
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void (SDLCALL *SetPlayerIndex)(void *userdata, int player_index); /**< Called when the player index is set */
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int (SDLCALL *Rumble)(void *userdata, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble); /**< Implements SDL_RumbleJoystick() */
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int (SDLCALL *RumbleTriggers)(void *userdata, Uint16 left_rumble, Uint16 right_rumble); /**< Implements SDL_RumbleJoystickTriggers() */
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int (SDLCALL *SetLED)(void *userdata, Uint8 red, Uint8 green, Uint8 blue); /**< Implements SDL_SetJoystickLED() */
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int (SDLCALL *SendEffect)(void *userdata, const void *data, int size); /**< Implements SDL_SendJoystickEffect() */
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} SDL_VirtualJoystickDesc;
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/**
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* The current version of the SDL_VirtualJoystickDesc structure
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*/
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#define SDL_VIRTUAL_JOYSTICK_DESC_VERSION 1
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/**
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* Attach a new virtual joystick with extended properties.
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*
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* \param desc Joystick description
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* \returns the joystick instance ID, or 0 if an error occurred; call
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* SDL_GetError() for more information.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_AttachVirtualJoystick
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* \sa SDL_DetachVirtualJoystick
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*/
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extern DECLSPEC SDL_JoystickID SDLCALL SDL_AttachVirtualJoystickEx(const SDL_VirtualJoystickDesc *desc);
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/**
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* Detach a virtual joystick.
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*
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* \param instance_id the joystick instance ID, previously returned from
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* SDL_AttachVirtualJoystick()
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* \returns 0 on success or a negative error code on failure; call
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* SDL_GetError() for more information.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_AttachVirtualJoystick
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* \sa SDL_AttachVirtualJoystickEx
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*/
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extern DECLSPEC int SDLCALL SDL_DetachVirtualJoystick(SDL_JoystickID instance_id);
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/**
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* Query whether or not a joystick is virtual.
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*
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* \param instance_id the joystick instance ID
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* \returns SDL_TRUE if the joystick is virtual, SDL_FALSE otherwise.
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*
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* \since This function is available since SDL 3.0.0.
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*/
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extern DECLSPEC SDL_bool SDLCALL SDL_IsJoystickVirtual(SDL_JoystickID instance_id);
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/**
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* Set values on an opened, virtual-joystick's axis.
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*
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* Please note that values set here will not be applied until the next call to
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* SDL_UpdateJoysticks, which can either be called directly, or can be called
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* indirectly through various other SDL APIs, including, but not limited to
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* the following: SDL_PollEvent, SDL_PumpEvents, SDL_WaitEventTimeout,
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* SDL_WaitEvent.
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*
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* Note that when sending trigger axes, you should scale the value to the full
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* range of Sint16. For example, a trigger at rest would have the value of
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* `SDL_JOYSTICK_AXIS_MIN`.
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*
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* \param joystick the virtual joystick on which to set state.
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* \param axis the specific axis on the virtual joystick to set.
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* \param value the new value for the specified axis.
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* \returns 0 on success or a negative error code on failure; call
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* SDL_GetError() for more information.
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*
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* \since This function is available since SDL 3.0.0.
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*/
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extern DECLSPEC int SDLCALL SDL_SetJoystickVirtualAxis(SDL_Joystick *joystick, int axis, Sint16 value);
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/**
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* Set values on an opened, virtual-joystick's button.
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*
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* Please note that values set here will not be applied until the next call to
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* SDL_UpdateJoysticks, which can either be called directly, or can be called
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* indirectly through various other SDL APIs, including, but not limited to
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* the following: SDL_PollEvent, SDL_PumpEvents, SDL_WaitEventTimeout,
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* SDL_WaitEvent.
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*
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* \param joystick the virtual joystick on which to set state.
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* \param button the specific button on the virtual joystick to set.
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* \param value the new value for the specified button.
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* \returns 0 on success or a negative error code on failure; call
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* SDL_GetError() for more information.
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*
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|
* \since This function is available since SDL 3.0.0.
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*/
|
|
extern DECLSPEC int SDLCALL SDL_SetJoystickVirtualButton(SDL_Joystick *joystick, int button, Uint8 value);
|
|
|
|
/**
|
|
* Set values on an opened, virtual-joystick's hat.
|
|
*
|
|
* Please note that values set here will not be applied until the next call to
|
|
* SDL_UpdateJoysticks, which can either be called directly, or can be called
|
|
* indirectly through various other SDL APIs, including, but not limited to
|
|
* the following: SDL_PollEvent, SDL_PumpEvents, SDL_WaitEventTimeout,
|
|
* SDL_WaitEvent.
|
|
*
|
|
* \param joystick the virtual joystick on which to set state.
|
|
* \param hat the specific hat on the virtual joystick to set.
|
|
* \param value the new value for the specified hat.
|
|
* \returns 0 on success or a negative error code on failure; call
|
|
* SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_SetJoystickVirtualHat(SDL_Joystick *joystick, int hat, Uint8 value);
|
|
|
|
/**
|
|
* Get the properties associated with a joystick.
|
|
*
|
|
* The following read-only properties are provided by SDL:
|
|
*
|
|
* - `SDL_PROP_JOYSTICK_CAP_MONO_LED_BOOLEAN`: true if this joystick has an
|
|
* LED that has adjustable brightness
|
|
* - `SDL_PROP_JOYSTICK_CAP_RGB_LED_BOOLEAN`: true if this joystick has an LED
|
|
* that has adjustable color
|
|
* - `SDL_PROP_JOYSTICK_CAP_PLAYER_LED_BOOLEAN`: true if this joystick has a
|
|
* player LED
|
|
* - `SDL_PROP_JOYSTICK_CAP_RUMBLE_BOOLEAN`: true if this joystick has
|
|
* left/right rumble
|
|
* - `SDL_PROP_JOYSTICK_CAP_TRIGGER_RUMBLE_BOOLEAN`: true if this joystick has
|
|
* simple trigger rumble
|
|
*
|
|
* \param joystick the SDL_Joystick obtained from SDL_OpenJoystick()
|
|
* \returns a valid property ID on success or 0 on failure; call
|
|
* SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetProperty
|
|
* \sa SDL_SetProperty
|
|
*/
|
|
extern DECLSPEC SDL_PropertiesID SDLCALL SDL_GetJoystickProperties(SDL_Joystick *joystick);
|
|
|
|
#define SDL_PROP_JOYSTICK_CAP_MONO_LED_BOOLEAN "SDL.joystick.cap.mono_led"
|
|
#define SDL_PROP_JOYSTICK_CAP_RGB_LED_BOOLEAN "SDL.joystick.cap.rgb_led"
|
|
#define SDL_PROP_JOYSTICK_CAP_PLAYER_LED_BOOLEAN "SDL.joystick.cap.player_led"
|
|
#define SDL_PROP_JOYSTICK_CAP_RUMBLE_BOOLEAN "SDL.joystick.cap.rumble"
|
|
#define SDL_PROP_JOYSTICK_CAP_TRIGGER_RUMBLE_BOOLEAN "SDL.joystick.cap.trigger_rumble"
|
|
|
|
/**
|
|
* Get the implementation dependent name of a joystick.
|
|
*
|
|
* \param joystick the SDL_Joystick obtained from SDL_OpenJoystick()
|
|
* \returns the name of the selected joystick. If no name can be found, this
|
|
* function returns NULL; call SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickInstanceName
|
|
*/
|
|
extern DECLSPEC const char *SDLCALL SDL_GetJoystickName(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get the implementation dependent path of a joystick.
|
|
*
|
|
* \param joystick the SDL_Joystick obtained from SDL_OpenJoystick()
|
|
* \returns the path of the selected joystick. If no path can be found, this
|
|
* function returns NULL; call SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickInstancePath
|
|
*/
|
|
extern DECLSPEC const char *SDLCALL SDL_GetJoystickPath(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get the player index of an opened joystick.
|
|
*
|
|
* For XInput controllers this returns the XInput user index. Many joysticks
|
|
* will not be able to supply this information.
|
|
*
|
|
* \param joystick the SDL_Joystick obtained from SDL_OpenJoystick()
|
|
* \returns the player index, or -1 if it's not available.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_SetJoystickPlayerIndex
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_GetJoystickPlayerIndex(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Set the player index of an opened joystick.
|
|
*
|
|
* \param joystick the SDL_Joystick obtained from SDL_OpenJoystick()
|
|
* \param player_index Player index to assign to this joystick, or -1 to clear
|
|
* the player index and turn off player LEDs.
|
|
* \returns 0 on success or a negative error code on failure; call
|
|
* SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickPlayerIndex
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_SetJoystickPlayerIndex(SDL_Joystick *joystick, int player_index);
|
|
|
|
/**
|
|
* Get the implementation-dependent GUID for the joystick.
|
|
*
|
|
* This function requires an open joystick.
|
|
*
|
|
* \param joystick the SDL_Joystick obtained from SDL_OpenJoystick()
|
|
* \returns the GUID of the given joystick. If called on an invalid index,
|
|
* this function returns a zero GUID; call SDL_GetError() for more
|
|
* information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickInstanceGUID
|
|
* \sa SDL_GetJoystickGUIDString
|
|
*/
|
|
extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_GetJoystickGUID(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get the USB vendor ID of an opened joystick, if available.
|
|
*
|
|
* If the vendor ID isn't available this function returns 0.
|
|
*
|
|
* \param joystick the SDL_Joystick obtained from SDL_OpenJoystick()
|
|
* \returns the USB vendor ID of the selected joystick, or 0 if unavailable.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickInstanceVendor
|
|
*/
|
|
extern DECLSPEC Uint16 SDLCALL SDL_GetJoystickVendor(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get the USB product ID of an opened joystick, if available.
|
|
*
|
|
* If the product ID isn't available this function returns 0.
|
|
*
|
|
* \param joystick the SDL_Joystick obtained from SDL_OpenJoystick()
|
|
* \returns the USB product ID of the selected joystick, or 0 if unavailable.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickInstanceProduct
|
|
*/
|
|
extern DECLSPEC Uint16 SDLCALL SDL_GetJoystickProduct(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get the product version of an opened joystick, if available.
|
|
*
|
|
* If the product version isn't available this function returns 0.
|
|
*
|
|
* \param joystick the SDL_Joystick obtained from SDL_OpenJoystick()
|
|
* \returns the product version of the selected joystick, or 0 if unavailable.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickInstanceProductVersion
|
|
*/
|
|
extern DECLSPEC Uint16 SDLCALL SDL_GetJoystickProductVersion(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get the firmware version of an opened joystick, if available.
|
|
*
|
|
* If the firmware version isn't available this function returns 0.
|
|
*
|
|
* \param joystick the SDL_Joystick obtained from SDL_OpenJoystick()
|
|
* \returns the firmware version of the selected joystick, or 0 if
|
|
* unavailable.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC Uint16 SDLCALL SDL_GetJoystickFirmwareVersion(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get the serial number of an opened joystick, if available.
|
|
*
|
|
* Returns the serial number of the joystick, or NULL if it is not available.
|
|
*
|
|
* \param joystick the SDL_Joystick obtained from SDL_OpenJoystick()
|
|
* \returns the serial number of the selected joystick, or NULL if
|
|
* unavailable.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC const char * SDLCALL SDL_GetJoystickSerial(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get the type of an opened joystick.
|
|
*
|
|
* \param joystick the SDL_Joystick obtained from SDL_OpenJoystick()
|
|
* \returns the SDL_JoystickType of the selected joystick.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickInstanceType
|
|
*/
|
|
extern DECLSPEC SDL_JoystickType SDLCALL SDL_GetJoystickType(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get an ASCII string representation for a given SDL_JoystickGUID.
|
|
*
|
|
* You should supply at least 33 bytes for pszGUID.
|
|
*
|
|
* \param guid the SDL_JoystickGUID you wish to convert to string
|
|
* \param pszGUID buffer in which to write the ASCII string
|
|
* \param cbGUID the size of pszGUID
|
|
* \returns 0 on success or a negative error code on failure; call
|
|
* SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickInstanceGUID
|
|
* \sa SDL_GetJoystickGUID
|
|
* \sa SDL_GetJoystickGUIDFromString
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_GetJoystickGUIDString(SDL_JoystickGUID guid, char *pszGUID, int cbGUID);
|
|
|
|
/**
|
|
* Convert a GUID string into a SDL_JoystickGUID structure.
|
|
*
|
|
* Performs no error checking. If this function is given a string containing
|
|
* an invalid GUID, the function will silently succeed, but the GUID generated
|
|
* will not be useful.
|
|
*
|
|
* \param pchGUID string containing an ASCII representation of a GUID
|
|
* \returns a SDL_JoystickGUID structure.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickGUIDString
|
|
*/
|
|
extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_GetJoystickGUIDFromString(const char *pchGUID);
|
|
|
|
/**
|
|
* Get the device information encoded in a SDL_JoystickGUID structure
|
|
*
|
|
* \param guid the SDL_JoystickGUID you wish to get info about
|
|
* \param vendor A pointer filled in with the device VID, or 0 if not
|
|
* available
|
|
* \param product A pointer filled in with the device PID, or 0 if not
|
|
* available
|
|
* \param version A pointer filled in with the device version, or 0 if not
|
|
* available
|
|
* \param crc16 A pointer filled in with a CRC used to distinguish different
|
|
* products with the same VID/PID, or 0 if not available
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickInstanceGUID
|
|
*/
|
|
extern DECLSPEC void SDLCALL SDL_GetJoystickGUIDInfo(SDL_JoystickGUID guid, Uint16 *vendor, Uint16 *product, Uint16 *version, Uint16 *crc16);
|
|
|
|
/**
|
|
* Get the status of a specified joystick.
|
|
*
|
|
* \param joystick the joystick to query
|
|
* \returns SDL_TRUE if the joystick has been opened, SDL_FALSE if it has not;
|
|
* call SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC SDL_bool SDLCALL SDL_JoystickConnected(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get the instance ID of an opened joystick.
|
|
*
|
|
* \param joystick an SDL_Joystick structure containing joystick information
|
|
* \returns the instance ID of the specified joystick on success or 0 on
|
|
* failure; call SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC SDL_JoystickID SDLCALL SDL_GetJoystickInstanceID(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get the number of general axis controls on a joystick.
|
|
*
|
|
* Often, the directional pad on a game controller will either look like 4
|
|
* separate buttons or a POV hat, and not axes, but all of this is up to the
|
|
* device and platform.
|
|
*
|
|
* \param joystick an SDL_Joystick structure containing joystick information
|
|
* \returns the number of axis controls/number of axes on success or a
|
|
* negative error code on failure; call SDL_GetError() for more
|
|
* information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickAxis
|
|
* \sa SDL_GetNumJoystickBalls
|
|
* \sa SDL_GetNumJoystickButtons
|
|
* \sa SDL_GetNumJoystickHats
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_GetNumJoystickAxes(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.
|
|
*
|
|
* Most joysticks do not have trackballs.
|
|
*
|
|
* \param joystick an SDL_Joystick structure containing joystick information
|
|
* \returns the number of trackballs on success or a negative error code on
|
|
* failure; call SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickBall
|
|
* \sa SDL_GetNumJoystickAxes
|
|
* \sa SDL_GetNumJoystickButtons
|
|
* \sa SDL_GetNumJoystickHats
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_GetNumJoystickBalls(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get the number of POV hats on a joystick.
|
|
*
|
|
* \param joystick an SDL_Joystick structure containing joystick information
|
|
* \returns the number of POV hats on success or a negative error code on
|
|
* failure; call SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickHat
|
|
* \sa SDL_GetNumJoystickAxes
|
|
* \sa SDL_GetNumJoystickBalls
|
|
* \sa SDL_GetNumJoystickButtons
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_GetNumJoystickHats(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get the number of buttons on a joystick.
|
|
*
|
|
* \param joystick an SDL_Joystick structure containing joystick information
|
|
* \returns the number of buttons on success or a negative error code on
|
|
* failure; call SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetJoystickButton
|
|
* \sa SDL_GetNumJoystickAxes
|
|
* \sa SDL_GetNumJoystickBalls
|
|
* \sa SDL_GetNumJoystickHats
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_GetNumJoystickButtons(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Set the state of joystick event processing.
|
|
*
|
|
* If joystick events are disabled, you must call SDL_UpdateJoysticks()
|
|
* yourself and check the state of the joystick when you want joystick
|
|
* information.
|
|
*
|
|
* \param enabled whether to process joystick events or not
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_JoystickEventsEnabled
|
|
* \sa SDL_UpdateJoysticks
|
|
*/
|
|
extern DECLSPEC void SDLCALL SDL_SetJoystickEventsEnabled(SDL_bool enabled);
|
|
|
|
/**
|
|
* Query the state of joystick event processing.
|
|
*
|
|
* If joystick events are disabled, you must call SDL_UpdateJoysticks()
|
|
* yourself and check the state of the joystick when you want joystick
|
|
* information.
|
|
*
|
|
* \returns SDL_TRUE if joystick events are being processed, SDL_FALSE
|
|
* otherwise.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_SetJoystickEventsEnabled
|
|
*/
|
|
extern DECLSPEC SDL_bool SDLCALL SDL_JoystickEventsEnabled(void);
|
|
|
|
/**
|
|
* Update the current state of the open joysticks.
|
|
*
|
|
* This is called automatically by the event loop if any joystick events are
|
|
* enabled.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC void SDLCALL SDL_UpdateJoysticks(void);
|
|
|
|
/**
|
|
* Get the current state of an axis control on a joystick.
|
|
*
|
|
* SDL makes no promises about what part of the joystick any given axis refers
|
|
* to. Your game should have some sort of configuration UI to let users
|
|
* specify what each axis should be bound to. Alternately, SDL's higher-level
|
|
* Game Controller API makes a great effort to apply order to this lower-level
|
|
* interface, so you know that a specific axis is the "left thumb stick," etc.
|
|
*
|
|
* The value returned by SDL_GetJoystickAxis() is a signed integer (-32768 to
|
|
* 32767) representing the current position of the axis. It may be necessary
|
|
* to impose certain tolerances on these values to account for jitter.
|
|
*
|
|
* \param joystick an SDL_Joystick structure containing joystick information
|
|
* \param axis the axis to query; the axis indices start at index 0
|
|
* \returns a 16-bit signed integer representing the current position of the
|
|
* axis or 0 on failure; call SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetNumJoystickAxes
|
|
*/
|
|
extern DECLSPEC Sint16 SDLCALL SDL_GetJoystickAxis(SDL_Joystick *joystick, int axis);
|
|
|
|
/**
|
|
* Get the initial 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 joystick an SDL_Joystick structure containing joystick information
|
|
* \param axis the axis to query; the axis indices start at index 0
|
|
* \param state Upon return, the initial value is supplied here.
|
|
* \returns SDL_TRUE if this axis has any initial value, or SDL_FALSE if not.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC SDL_bool SDLCALL SDL_GetJoystickAxisInitialState(SDL_Joystick *joystick, int axis, Sint16 *state);
|
|
|
|
/**
|
|
* Get the ball axis change since the last poll.
|
|
*
|
|
* Trackballs can only return relative motion since the last call to
|
|
* SDL_GetJoystickBall(), these motion deltas are placed into `dx` and `dy`.
|
|
*
|
|
* Most joysticks do not have trackballs.
|
|
*
|
|
* \param joystick the SDL_Joystick to query
|
|
* \param ball the ball index to query; ball indices start at index 0
|
|
* \param dx stores the difference in the x axis position since the last poll
|
|
* \param dy stores the difference in the y axis position since the last poll
|
|
* \returns 0 on success or a negative error code on failure; call
|
|
* SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_GetNumJoystickBalls
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_GetJoystickBall(SDL_Joystick *joystick, int ball, int *dx, int *dy);
|
|
|
|
/**
|
|
* \name Hat positions
|
|
*/
|
|
/* @{ */
|
|
#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)
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#define SDL_HAT_LEFTUP (SDL_HAT_LEFT|SDL_HAT_UP)
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#define SDL_HAT_LEFTDOWN (SDL_HAT_LEFT|SDL_HAT_DOWN)
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/* @} */
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/**
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* Get the current state of a POV hat on a joystick.
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*
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* The returned value will be one of the following positions:
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*
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* - `SDL_HAT_CENTERED`
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* - `SDL_HAT_UP`
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* - `SDL_HAT_RIGHT`
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* - `SDL_HAT_DOWN`
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* - `SDL_HAT_LEFT`
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* - `SDL_HAT_RIGHTUP`
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* - `SDL_HAT_RIGHTDOWN`
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* - `SDL_HAT_LEFTUP`
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* - `SDL_HAT_LEFTDOWN`
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*
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* \param joystick an SDL_Joystick structure containing joystick information
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* \param hat the hat index to get the state from; indices start at index 0
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* \returns the current hat position.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_GetNumJoystickHats
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*/
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extern DECLSPEC Uint8 SDLCALL SDL_GetJoystickHat(SDL_Joystick *joystick, int hat);
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/**
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* Get the current state of a button on a joystick.
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*
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* \param joystick an SDL_Joystick structure containing joystick information
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* \param button the button index to get the state from; indices start at
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* index 0
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* \returns 1 if the specified button is pressed, 0 otherwise.
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*
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* \since This function is available since SDL 3.0.0.
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*
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* \sa SDL_GetNumJoystickButtons
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|
*/
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extern DECLSPEC Uint8 SDLCALL SDL_GetJoystickButton(SDL_Joystick *joystick, int button);
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|
|
/**
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|
* Start a rumble effect.
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*
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* Each call to this function cancels any previous rumble effect, and calling
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* it with 0 intensity stops any rumbling.
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*
|
|
* This function requires you to process SDL events or call
|
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* SDL_UpdateJoysticks() to update rumble state.
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*
|
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* \param joystick The joystick to vibrate
|
|
* \param low_frequency_rumble The intensity of the low frequency (left)
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* rumble motor, from 0 to 0xFFFF
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* \param high_frequency_rumble The intensity of the high frequency (right)
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|
* rumble motor, from 0 to 0xFFFF
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|
* \param duration_ms The duration of the rumble effect, in milliseconds
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* \returns 0, or -1 if rumble isn't supported on this joystick
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|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
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|
extern DECLSPEC int SDLCALL SDL_RumbleJoystick(SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble, Uint32 duration_ms);
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|
|
/**
|
|
* Start a rumble effect in the joystick's triggers
|
|
*
|
|
* Each call to this function cancels any previous trigger rumble effect, and
|
|
* calling it with 0 intensity stops any rumbling.
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|
*
|
|
* Note that this is rumbling of the _triggers_ and not the game controller as
|
|
* a whole. This is currently only supported on Xbox One controllers. If you
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|
* want the (more common) whole-controller rumble, use SDL_RumbleJoystick()
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|
* instead.
|
|
*
|
|
* This function requires you to process SDL events or call
|
|
* SDL_UpdateJoysticks() to update rumble state.
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|
*
|
|
* \param joystick The joystick to vibrate
|
|
* \param left_rumble The intensity of the left trigger rumble motor, from 0
|
|
* to 0xFFFF
|
|
* \param right_rumble The intensity of the right trigger rumble motor, from 0
|
|
* to 0xFFFF
|
|
* \param duration_ms The duration of the rumble effect, in milliseconds
|
|
* \returns 0 on success or a negative error code on failure; call
|
|
* SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_RumbleJoystick
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_RumbleJoystickTriggers(SDL_Joystick *joystick, Uint16 left_rumble, Uint16 right_rumble, Uint32 duration_ms);
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|
|
|
/**
|
|
* Update a joystick's LED color.
|
|
*
|
|
* An example of a joystick LED is the light on the back of a PlayStation 4's
|
|
* DualShock 4 controller.
|
|
*
|
|
* For joysticks with a single color LED, the maximum of the RGB values will
|
|
* be used as the LED brightness.
|
|
*
|
|
* \param joystick The joystick to update
|
|
* \param red The intensity of the red LED
|
|
* \param green The intensity of the green LED
|
|
* \param blue The intensity of the blue LED
|
|
* \returns 0 on success or a negative error code on failure; call
|
|
* SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_SetJoystickLED(SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue);
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|
|
|
/**
|
|
* Send a joystick specific effect packet
|
|
*
|
|
* \param joystick The joystick to affect
|
|
* \param data The data to send to the joystick
|
|
* \param size The size of the data to send to the joystick
|
|
* \returns 0 on success or a negative error code on failure; call
|
|
* SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_SendJoystickEffect(SDL_Joystick *joystick, const void *data, int size);
|
|
|
|
/**
|
|
* Close a joystick previously opened with SDL_OpenJoystick().
|
|
*
|
|
* \param joystick The joystick device to close
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*
|
|
* \sa SDL_OpenJoystick
|
|
*/
|
|
extern DECLSPEC void SDLCALL SDL_CloseJoystick(SDL_Joystick *joystick);
|
|
|
|
/**
|
|
* Get the battery level of a joystick as SDL_JoystickPowerLevel.
|
|
*
|
|
* \param joystick the SDL_Joystick to query
|
|
* \returns the current battery level as SDL_JoystickPowerLevel on success or
|
|
* `SDL_JOYSTICK_POWER_UNKNOWN` if it is unknown
|
|
*
|
|
* \since This function is available since SDL 3.0.0.
|
|
*/
|
|
extern DECLSPEC SDL_JoystickPowerLevel SDLCALL SDL_GetJoystickPowerLevel(SDL_Joystick *joystick);
|
|
|
|
/* Ends C function definitions when using C++ */
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#include <SDL3/SDL_close_code.h>
|
|
|
|
#endif /* SDL_joystick_h_ */
|