Mercurial > sdl-ios-xcode
annotate include/SDL_thread.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> |
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date | Sun, 20 Apr 2003 05:41:16 +0000 |
parents | 9154ec9ca3d2 |
children | b8d311d90021 |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
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Updated copyright information for 2002
Sam Lantinga <slouken@libsdl.org>
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
0 | 4 |
5 This library is free software; you can redistribute it and/or | |
6 modify it under the terms of the GNU Library General Public | |
7 License as published by the Free Software Foundation; either | |
8 version 2 of the License, or (at your option) any later version. | |
9 | |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 Library General Public License for more details. | |
14 | |
15 You should have received a copy of the GNU Library General Public | |
16 License along with this library; if not, write to the Free | |
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | |
19 Sam Lantinga | |
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Updated the headers with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
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20 slouken@libsdl.org |
0 | 21 */ |
22 | |
23 #ifdef SAVE_RCSID | |
24 static char rcsid = | |
25 "@(#) $Id$"; | |
26 #endif | |
27 | |
28 #ifndef _SDL_thread_h | |
29 #define _SDL_thread_h | |
30 | |
31 /* Header for the SDL thread management routines | |
32 | |
33 These are independent of the other SDL routines. | |
34 */ | |
35 | |
36 #include "SDL_main.h" | |
37 #include "SDL_types.h" | |
38 | |
39 /* Thread synchronization primitives */ | |
40 #include "SDL_mutex.h" | |
41 | |
42 #include "begin_code.h" | |
43 /* Set up for C function definitions, even when using C++ */ | |
44 #ifdef __cplusplus | |
45 extern "C" { | |
46 #endif | |
47 | |
48 /* The SDL thread structure, defined in SDL_thread.c */ | |
49 struct SDL_Thread; | |
50 typedef struct SDL_Thread SDL_Thread; | |
51 | |
52 /* Create a thread */ | |
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53 extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (*fn)(void *), void *data); |
0 | 54 |
55 /* Get the 32-bit thread identifier for the current thread */ | |
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56 extern DECLSPEC Uint32 SDLCALL SDL_ThreadID(void); |
0 | 57 |
58 /* Get the 32-bit thread identifier for the specified thread, | |
59 equivalent to SDL_ThreadID() if the specified thread is NULL. | |
60 */ | |
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Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
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61 extern DECLSPEC Uint32 SDLCALL SDL_GetThreadID(SDL_Thread *thread); |
0 | 62 |
63 /* Wait for a thread to finish. | |
64 The return code for the thread function is placed in the area | |
65 pointed to by 'status', if 'status' is not NULL. | |
66 */ | |
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Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
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67 extern DECLSPEC void SDLCALL SDL_WaitThread(SDL_Thread *thread, int *status); |
0 | 68 |
69 /* Forcefully kill a thread without worrying about its state */ | |
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Explicitly specify the SDL API calling convention (C by default)
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parents:
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70 extern DECLSPEC void SDLCALL SDL_KillThread(SDL_Thread *thread); |
0 | 71 |
72 | |
73 /* Ends C function definitions when using C++ */ | |
74 #ifdef __cplusplus | |
75 } | |
76 #endif | |
77 #include "close_code.h" | |
78 | |
79 #endif /* _SDL_thread_h */ |