SDL-mirror/src/events/SDL_touch_c.h

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2011 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"
#include "../../include/SDL_touch.h"

#ifndef _SDL_touch_c_h
#define _SDL_touch_c_h



/* Initialize the touch subsystem */
extern int SDL_TouchInit(void);

/*Get the touch at an index */
extern SDL_Touch *SDL_GetTouchIndex(int index);

/* Get the touch with id = id */
extern SDL_Touch *SDL_GetTouch(SDL_TouchID id);

/*Get the finger at an index */
extern SDL_Finger *SDL_GetFingerIndex(SDL_Touch *touch, int index);

/* Get the finger with id = id */
extern SDL_Finger *SDL_GetFinger(SDL_Touch *touch,SDL_FingerID id);


/* Add a touch, possibly reattaching at a particular index (or -1),
   returning the index of the touch, or -1 if there was an error. */
extern int SDL_AddTouch(const SDL_Touch * touch, char *name);
                     

/* Remove a touch at an index, clearing the slot for later */
extern void SDL_DelTouch(SDL_TouchID id);

/* Set the touch focus window */
extern void SDL_SetTouchFocus(SDL_TouchID id, SDL_Window * window);

/* Send a touch motion event for a touch */
extern int SDL_SendTouchMotion(SDL_TouchID id, SDL_FingerID fingerid,
			       int relative, float x, float y, float z);

/* Send a touch down/up event for a touch */
extern int SDL_SendFingerDown(SDL_TouchID id, SDL_FingerID fingerid, 
			      SDL_bool down, float x, float y, float pressure);

/* Send a touch button event for a touch */
extern int SDL_SendTouchButton(SDL_TouchID id, Uint8 state, Uint8 button);

/* Shutdown the touch subsystem */
extern void SDL_TouchQuit(void);

/* Get the index of a touch device */
extern int SDL_GetTouchIndexId(SDL_TouchID id);

/* Print a debug message for a nonexistent touch */
extern int SDL_TouchNotFoundError(SDL_TouchID id);

#endif /* _SDL_touch_c_h */

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