SDL_sysjoystick.c
资源名称:NETVIDEO.rar [点击查看]
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.c,v 1.4 2002/04/22 21:38:02 wmay Exp $";
- #endif
- /* This is the system specific header for the SDL joystick API */
- #include <stdio.h> /* For the definition of NULL */
- #include "SDL_error.h"
- #include "SDL_joystick.h"
- #include "SDL_sysjoystick.h"
- #include "SDL_joystick_c.h"
- /* Function to scan the system for joysticks.
- * This function should set SDL_numjoysticks to the number of available
- * joysticks. Joystick 0 should be the system default joystick.
- * It should return 0, or -1 on an unrecoverable fatal error.
- */
- int SDL_SYS_JoystickInit(void)
- {
- SDL_numjoysticks = 0;
- return(0);
- }
- /* Function to get the device-dependent name of a joystick */
- const char *SDL_SYS_JoystickName(int index)
- {
- SDL_SetError("Logic error: No joysticks available");
- return(NULL);
- }
- /* 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.
- */
- int SDL_SYS_JoystickOpen(SDL_Joystick *joystick)
- {
- SDL_SetError("Logic error: No joysticks available");
- return(-1);
- }
- /* 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.
- */
- void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick)
- {
- return;
- }
- /* Function to close a joystick after use */
- void SDL_SYS_JoystickClose(SDL_Joystick *joystick)
- {
- return;
- }
- /* Function to perform any system-specific joystick related cleanup */
- void SDL_SYS_JoystickQuit(void)
- {
- return;
- }