My Project
Loading...
Searching...
No Matches
SDL_touch.h
Go to the documentation of this file.
1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
4
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
8
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
12
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
20*/
21
28#ifndef SDL_touch_h_
29#define SDL_touch_h_
30
31#include "SDL_stdinc.h"
32#include "SDL_error.h"
33#include "SDL_video.h"
34
35#include "begin_code.h"
36/* Set up for C function definitions, even when using C++ */
37#ifdef __cplusplus
38extern "C" {
39#endif
40
41typedef Sint64 SDL_TouchID;
42typedef Sint64 SDL_FingerID;
43
44typedef enum
45{
46 SDL_TOUCH_DEVICE_INVALID = -1,
47 SDL_TOUCH_DEVICE_DIRECT, /* touch screen with window-relative coordinates */
48 SDL_TOUCH_DEVICE_INDIRECT_ABSOLUTE, /* trackpad with absolute device coordinates */
49 SDL_TOUCH_DEVICE_INDIRECT_RELATIVE /* trackpad with screen cursor-relative coordinates */
50} SDL_TouchDeviceType;
51
52typedef struct SDL_Finger
53{
54 SDL_FingerID id;
55 float x;
56 float y;
57 float pressure;
59
60/* Used as the device ID for mouse events simulated with touch input */
61#define SDL_TOUCH_MOUSEID ((Uint32)-1)
62
63/* Used as the SDL_TouchID for touch events simulated with mouse input */
64#define SDL_MOUSE_TOUCHID ((Sint64)-1)
65
66
83extern DECLSPEC int SDLCALL SDL_GetNumTouchDevices(void);
84
96extern DECLSPEC SDL_TouchID SDLCALL SDL_GetTouchDevice(int index);
97
104extern DECLSPEC const char* SDLCALL SDL_GetTouchName(int index);
105
111extern DECLSPEC SDL_TouchDeviceType SDLCALL SDL_GetTouchDeviceType(SDL_TouchID touchID);
112
124extern DECLSPEC int SDLCALL SDL_GetNumTouchFingers(SDL_TouchID touchID);
125
140extern DECLSPEC SDL_Finger * SDLCALL SDL_GetTouchFinger(SDL_TouchID touchID, int index);
141
142/* Ends C function definitions when using C++ */
143#ifdef __cplusplus
144}
145#endif
146#include "close_code.h"
147
148#endif /* SDL_touch_h_ */
149
150/* vi: set ts=4 sw=4 expandtab: */
DECLSPEC int SDLCALL SDL_GetNumTouchDevices(void)
DECLSPEC const char *SDLCALL SDL_GetTouchName(int index)
DECLSPEC SDL_Finger *SDLCALL SDL_GetTouchFinger(SDL_TouchID touchID, int index)
DECLSPEC int SDLCALL SDL_GetNumTouchFingers(SDL_TouchID touchID)
DECLSPEC SDL_TouchDeviceType SDLCALL SDL_GetTouchDeviceType(SDL_TouchID touchID)
DECLSPEC SDL_TouchID SDLCALL SDL_GetTouchDevice(int index)
Definition: SDL_touch.h:53