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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 26eb0f877ce6
children dfc1c102e825
line wrap: on
line source

/*
    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

/* This header defines the current SDL version */

#ifndef _SDL_version_h
#define _SDL_version_h

#include "SDL_types.h"

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

/* Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL
*/
#define SDL_MAJOR_VERSION	1
#define SDL_MINOR_VERSION	2
#define SDL_PATCHLEVEL		6

typedef struct {
	Uint8 major;
	Uint8 minor;
	Uint8 patch;
} SDL_version;

/* This macro can be used to fill a version structure with the compile-time
 * version of the SDL library.
 */
#define SDL_VERSION(X)							\
{									\
	(X)->major = SDL_MAJOR_VERSION;					\
	(X)->minor = SDL_MINOR_VERSION;					\
	(X)->patch = SDL_PATCHLEVEL;					\
}

/* This macro turns the version numbers into a numeric value:
   (1,2,3) -> (1203)
   This assumes that there will never be more than 100 patchlevels
*/
#define SDL_VERSIONNUM(X, Y, Z)						\
	(X)*1000 + (Y)*100 + (Z)

/* This is the version number macro for the current SDL version */
#define SDL_COMPILEDVERSION \
	SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL)

/* This macro will evaluate to true if compiled with SDL at least X.Y.Z */
#define SDL_VERSION_ATLEAST(X, Y, Z) \
	(SDL_COMPILEDVERSION >= SDL_VERSIONNUM(X, Y, Z))

/* This function gets the version of the dynamically linked SDL library.
   it should NOT be used to fill a version structure, instead you should
   use the SDL_Version() macro.
 */
extern DECLSPEC const SDL_version * SDLCALL SDL_Linked_Version(void);

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

#endif /* _SDL_version_h */