view include/SDL.h @ 615:7ec821f3cbd0

Date: Thu, 17 Apr 2003 23:27:34 -0400 From: Darrell Walisser Subject: Yet another OS X cursor bug The synopsis: 1. Call SDL_ShowCursor(0); 2. Call SDL_SetVideoMode(); 3. Call SDL_GetEvent(); 3. Call SDL_ShowCursor(1); The result: Sometimes the cursor doesn't come back! Ack! Oddly enough, it does come back when mousing over the dock or clicking in the menu bar. But that's besides the point. The reason why this is happening is a flaw in the handling of activation/deactivation events. The short explanation is that the HideCursor() and ShowCursor() calls must be balanced, but if the cursor was initially hidden, HideCursor() was called again on the activate event - so now the next ShowCursor() fails (as does the next, and the next, for some reason). So, here's the patch. All it does is keep track of the HideCursor()/ShowCursor() calls so that they will always be balanced.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 20 Apr 2003 05:41:16 +0000
parents 9154ec9ca3d2
children b8d311d90021
line wrap: on
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/*
    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 =
 "@(#) $Id$";
#endif

/* Main include header for the SDL library */

#ifndef _SDL_H
#define _SDL_H

#include "SDL_main.h"
#include "SDL_types.h"
#include "SDL_getenv.h"
#include "SDL_error.h"
#include "SDL_rwops.h"
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "SDL_cdrom.h"
#include "SDL_joystick.h"
#include "SDL_events.h"
#include "SDL_video.h"
#include "SDL_byteorder.h"
#include "SDL_version.h"

#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif

/* As of version 0.5, SDL is loaded dynamically into the application */

/* These are the flags which may be passed to SDL_Init() -- you should
   specify the subsystems which you will be using in your application.
*/
#define	SDL_INIT_TIMER		0x00000001
#define SDL_INIT_AUDIO		0x00000010
#define SDL_INIT_VIDEO		0x00000020
#define SDL_INIT_CDROM		0x00000100
#define SDL_INIT_JOYSTICK	0x00000200
#define SDL_INIT_NOPARACHUTE	0x00100000	/* Don't catch fatal signals */
#define SDL_INIT_EVENTTHREAD	0x01000000	/* Not supported on all OS's */
#define SDL_INIT_EVERYTHING	0x0000FFFF

/* This function loads the SDL dynamically linked library and initializes 
 * the subsystems specified by 'flags' (and those satisfying dependencies)
 * Unless the SDL_INIT_NOPARACHUTE flag is set, it will install cleanup
 * signal handlers for some commonly ignored fatal signals (like SIGSEGV)
 */
extern DECLSPEC int SDLCALL SDL_Init(Uint32 flags);

/* This function initializes specific SDL subsystems */
extern DECLSPEC int SDLCALL SDL_InitSubSystem(Uint32 flags);

/* This function cleans up specific SDL subsystems */
extern DECLSPEC void SDLCALL SDL_QuitSubSystem(Uint32 flags);

/* This function returns mask of the specified subsystems which have
   been initialized.
   If 'flags' is 0, it returns a mask of all initialized subsystems.
*/
extern DECLSPEC Uint32 SDLCALL SDL_WasInit(Uint32 flags);

/* This function cleans up all initialized subsystems and unloads the
 * dynamically linked library.  You should call it upon all exit conditions.
 */
extern DECLSPEC void SDLCALL SDL_Quit(void);

/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"

#endif /* _SDL_H */