SDL_sysjoystick.h
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上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:3k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 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
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- Sam Lantinga
- slouken@libsdl.org
- */
- #ifdef SAVE_RCSID
- static char rcsid =
- "@(#) $Id: SDL_sysjoystick.h,v 1.4 2002/04/22 21:38:02 wmay Exp $";
- #endif
- /* This is the system specific header for the SDL joystick API */
- #include "SDL_joystick.h"
- /* The SDL joystick structure */
- struct _SDL_Joystick {
- Uint8 index; /* Device index */
- const char *name; /* Joystick name - system dependent */
- int naxes; /* Number of axis controls on the joystick */
- Sint16 *axes; /* Current axis states */
- int nhats; /* Number of hats on the joystick */
- Uint8 *hats; /* Current hat states */
- int nballs; /* Number of trackballs on the joystick */
- struct balldelta {
- int dx;
- int dy;
- } *balls; /* Current ball motion deltas */
- int nbuttons; /* Number of buttons on the joystick */
- Uint8 *buttons; /* Current button states */
- struct joystick_hwdata *hwdata; /* Driver dependent information */
- int ref_count; /* Reference count for multiple opens */
- };
- /* Function to scan the system for joysticks.
- * Joystick 0 should be the system default joystick.
- * This function should return the number of available joysticks, or -1
- * on an unrecoverable fatal error.
- */
- extern int SDL_SYS_JoystickInit(void);
- /* Function to get the device-dependent name of a joystick */
- extern const char *SDL_SYS_JoystickName(int index);
- /* Function to open a joystick for use.
- The joystick to open is specified by the index field of the joystick.
- This should fill the nbuttons and naxes fields of the joystick structure.
- It returns 0, or -1 if there is an error.
- */
- extern int SDL_SYS_JoystickOpen(SDL_Joystick *joystick);
- /* Function to update the state of a joystick - called as a device poll.
- * This function shouldn't update the joystick structure directly,
- * but instead should call SDL_PrivateJoystick*() to deliver events
- * and update joystick device state.
- */
- extern void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick);
- /* Function to close a joystick after use */
- extern void SDL_SYS_JoystickClose(SDL_Joystick *joystick);
- /* Function to perform any system-specific joystick related cleanup */
- extern void SDL_SYS_JoystickQuit(void);