1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2025 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#include "SDL_internal.h"
22
23#ifndef SDL_touch_c_h_
24#define SDL_touch_c_h_
25
26typedef struct SDL_Touch
27{
28 SDL_TouchID id;
29 SDL_TouchDeviceType type;
30 int num_fingers;
31 int max_fingers;
32 SDL_Finger **fingers;
33 char *name;
34} SDL_Touch;
35
36// Initialize the touch subsystem
37extern bool SDL_InitTouch(void);
38
39// Returns true if _any_ connected touch devices are known to SDL
40extern bool SDL_TouchDevicesAvailable(void);
41
42// Add a touch, returning the index of the touch, or -1 if there was an error.
43extern int SDL_AddTouch(SDL_TouchID id, SDL_TouchDeviceType type, const char *name);
44
45// Get the touch with a given id
46extern SDL_Touch *SDL_GetTouch(SDL_TouchID id);
47
48// Send a touch down/up event for a touch
49extern void SDL_SendTouch(Uint64 timestamp, SDL_TouchID id, SDL_FingerID fingerid, SDL_Window *window, SDL_EventType type, float x, float y, float pressure);
50
51// Send a touch motion event for a touch
52extern void SDL_SendTouchMotion(Uint64 timestamp, SDL_TouchID id, SDL_FingerID fingerid, SDL_Window *window, float x, float y, float pressure);
53
54// Remove a touch
55extern void SDL_DelTouch(SDL_TouchID id);
56
57// Shutdown the touch subsystem
58extern void SDL_QuitTouch(void);
59
60#endif // SDL_touch_c_h_
61