🛠️🐜 Antkeeper superbuild with dependencies included
https://antkeeper.com
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
150 lines
4.4 KiB
150 lines
4.4 KiB
/*
|
|
Simple DirectMedia Layer
|
|
Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
|
|
|
|
This software is provided 'as-is', without any express or implied
|
|
warranty. In no event will the authors be held liable for any damages
|
|
arising from the use of this software.
|
|
|
|
Permission is granted to anyone to use this software for any purpose,
|
|
including commercial applications, and to alter it and redistribute it
|
|
freely, subject to the following restrictions:
|
|
|
|
1. The origin of this software must not be misrepresented; you must not
|
|
claim that you wrote the original software. If you use this software
|
|
in a product, an acknowledgment in the product documentation would be
|
|
appreciated but is not required.
|
|
2. Altered source versions must be plainly marked as such, and must not be
|
|
misrepresented as being the original software.
|
|
3. This notice may not be removed or altered from any source distribution.
|
|
*/
|
|
|
|
/**
|
|
* \file SDL_touch.h
|
|
*
|
|
* Include file for SDL touch event handling.
|
|
*/
|
|
|
|
#ifndef SDL_touch_h_
|
|
#define SDL_touch_h_
|
|
|
|
#include "SDL_stdinc.h"
|
|
#include "SDL_error.h"
|
|
#include "SDL_video.h"
|
|
|
|
#include "begin_code.h"
|
|
/* Set up for C function definitions, even when using C++ */
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef Sint64 SDL_TouchID;
|
|
typedef Sint64 SDL_FingerID;
|
|
|
|
typedef enum
|
|
{
|
|
SDL_TOUCH_DEVICE_INVALID = -1,
|
|
SDL_TOUCH_DEVICE_DIRECT, /* touch screen with window-relative coordinates */
|
|
SDL_TOUCH_DEVICE_INDIRECT_ABSOLUTE, /* trackpad with absolute device coordinates */
|
|
SDL_TOUCH_DEVICE_INDIRECT_RELATIVE /* trackpad with screen cursor-relative coordinates */
|
|
} SDL_TouchDeviceType;
|
|
|
|
typedef struct SDL_Finger
|
|
{
|
|
SDL_FingerID id;
|
|
float x;
|
|
float y;
|
|
float pressure;
|
|
} SDL_Finger;
|
|
|
|
/* Used as the device ID for mouse events simulated with touch input */
|
|
#define SDL_TOUCH_MOUSEID ((Uint32)-1)
|
|
|
|
/* Used as the SDL_TouchID for touch events simulated with mouse input */
|
|
#define SDL_MOUSE_TOUCHID ((Sint64)-1)
|
|
|
|
|
|
/**
|
|
* Get the number of registered touch devices.
|
|
*
|
|
* On some platforms SDL first sees the touch device if it was actually used.
|
|
* Therefore SDL_GetNumTouchDevices() may return 0 although devices are
|
|
* available. After using all devices at least once the number will be
|
|
* correct.
|
|
*
|
|
* This was fixed for Android in SDL 2.0.1.
|
|
*
|
|
* \returns the number of registered touch devices.
|
|
*
|
|
* \since This function is available since SDL 2.0.0.
|
|
*
|
|
* \sa SDL_GetTouchDevice
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_GetNumTouchDevices(void);
|
|
|
|
/**
|
|
* Get the touch ID with the given index.
|
|
*
|
|
* \param index the touch device index
|
|
* \returns the touch ID with the given index on success or 0 if the index is
|
|
* invalid; call SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 2.0.0.
|
|
*
|
|
* \sa SDL_GetNumTouchDevices
|
|
*/
|
|
extern DECLSPEC SDL_TouchID SDLCALL SDL_GetTouchDevice(int index);
|
|
|
|
/**
|
|
* Get the touch device name as reported from the driver or NULL if the index
|
|
* is invalid.
|
|
*
|
|
* \since This function is available since SDL 2.0.22.
|
|
*/
|
|
extern DECLSPEC const char* SDLCALL SDL_GetTouchName(int index);
|
|
|
|
/**
|
|
* Get the type of the given touch device.
|
|
*
|
|
* \since This function is available since SDL 2.0.10.
|
|
*/
|
|
extern DECLSPEC SDL_TouchDeviceType SDLCALL SDL_GetTouchDeviceType(SDL_TouchID touchID);
|
|
|
|
/**
|
|
* Get the number of active fingers for a given touch device.
|
|
*
|
|
* \param touchID the ID of a touch device
|
|
* \returns the number of active fingers for a given touch device on success
|
|
* or 0 on failure; call SDL_GetError() for more information.
|
|
*
|
|
* \since This function is available since SDL 2.0.0.
|
|
*
|
|
* \sa SDL_GetTouchFinger
|
|
*/
|
|
extern DECLSPEC int SDLCALL SDL_GetNumTouchFingers(SDL_TouchID touchID);
|
|
|
|
/**
|
|
* Get the finger object for specified touch device ID and finger index.
|
|
*
|
|
* The returned resource is owned by SDL and should not be deallocated.
|
|
*
|
|
* \param touchID the ID of the requested touch device
|
|
* \param index the index of the requested finger
|
|
* \returns a pointer to the SDL_Finger object or NULL if no object at the
|
|
* given ID and index could be found.
|
|
*
|
|
* \since This function is available since SDL 2.0.0.
|
|
*
|
|
* \sa SDL_RecordGesture
|
|
*/
|
|
extern DECLSPEC SDL_Finger * SDLCALL SDL_GetTouchFinger(SDL_TouchID touchID, int index);
|
|
|
|
/* Ends C function definitions when using C++ */
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#include "close_code.h"
|
|
|
|
#endif /* SDL_touch_h_ */
|
|
|
|
/* vi: set ts=4 sw=4 expandtab: */
|