Mercurial > sdl-ios-xcode
annotate docs/html/sdlcreatemutex.html @ 937:1e6366bde299
Date: Tue, 27 Jul 2004 17:14:00 +0200
From: "Eckhard Stolberg"
Subject: Controller names in SDL for Windows
I'm working on an Atari 2600 emulator for different systems that uses
the SDL. Some time ago someone created an adaptor that lets you use
your old Atari controllers with your computer through the USB port.
Some of the Atari controllers require special handling by the emulator,
so it would be nice, if it would be possible to detect if any of the
controllers connected to the computer is this adaptor.
SDL would allow that with the SDL_JoystickName function, but unfortunately
it doesn't work properly on Windows. On Linux and MacOSX this function
returns the name of the controller, but on Windows you'll only get the
name of the joystick driver. Most joysticks nowadays use the generic
Microsoft driver, so they all return the same name.
In an old MSDN article
(http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/dnarinput/html/msdn_extdirect.asp)
Microsoft describes how to read out the OEM controller names from the registry.
I have implemented this for the SDL controller handler on Windows,
and now reading the joystick name works properly there too.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 21 Aug 2004 03:45:58 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_CreateMutex</TITLE | |
5 ><META | |
6 NAME="GENERATOR" | |
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ |
0 | 8 "><LINK |
9 REL="HOME" | |
10 TITLE="SDL Library Documentation" | |
11 HREF="index.html"><LINK | |
12 REL="UP" | |
13 TITLE="Multi-threaded Programming" | |
14 HREF="thread.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_KillThread" | |
17 HREF="sdlkillthread.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_DestroyMutex" | |
20 HREF="sdldestroymutex.html"></HEAD | |
21 ><BODY | |
22 CLASS="REFENTRY" | |
23 BGCOLOR="#FFF8DC" | |
24 TEXT="#000000" | |
25 LINK="#0000ee" | |
26 VLINK="#551a8b" | |
27 ALINK="#ff0000" | |
28 ><DIV | |
29 CLASS="NAVHEADER" | |
30 ><TABLE | |
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31 SUMMARY="Header navigation table" |
0 | 32 WIDTH="100%" |
33 BORDER="0" | |
34 CELLPADDING="0" | |
35 CELLSPACING="0" | |
36 ><TR | |
37 ><TH | |
38 COLSPAN="3" | |
39 ALIGN="center" | |
40 >SDL Library Documentation</TH | |
41 ></TR | |
42 ><TR | |
43 ><TD | |
44 WIDTH="10%" | |
45 ALIGN="left" | |
46 VALIGN="bottom" | |
47 ><A | |
48 HREF="sdlkillthread.html" | |
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49 ACCESSKEY="P" |
0 | 50 >Prev</A |
51 ></TD | |
52 ><TD | |
53 WIDTH="80%" | |
54 ALIGN="center" | |
55 VALIGN="bottom" | |
56 ></TD | |
57 ><TD | |
58 WIDTH="10%" | |
59 ALIGN="right" | |
60 VALIGN="bottom" | |
61 ><A | |
62 HREF="sdldestroymutex.html" | |
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63 ACCESSKEY="N" |
0 | 64 >Next</A |
65 ></TD | |
66 ></TR | |
67 ></TABLE | |
68 ><HR | |
69 ALIGN="LEFT" | |
70 WIDTH="100%"></DIV | |
71 ><H1 | |
72 ><A | |
73 NAME="SDLCREATEMUTEX" | |
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74 ></A |
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75 >SDL_CreateMutex</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN7820" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_CreateMutex -- Create a mutex</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN7823" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN7824" |
0 | 95 ></A |
96 ><P | |
97 ></P | |
98 ><PRE | |
99 CLASS="FUNCSYNOPSISINFO" | |
100 >#include "SDL.h" | |
101 #include "SDL_thread.h"</PRE | |
102 ><P | |
103 ><CODE | |
104 ><CODE | |
105 CLASS="FUNCDEF" | |
106 >SDL_mutex *<B | |
107 CLASS="FSFUNC" | |
108 >SDL_CreateMutex</B | |
109 ></CODE | |
110 >(void);</CODE | |
111 ></P | |
112 ><P | |
113 ></P | |
114 ></DIV | |
115 ></DIV | |
116 ><DIV | |
117 CLASS="REFSECT1" | |
118 ><A | |
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119 NAME="AEN7830" |
0 | 120 ></A |
121 ><H2 | |
122 >Description</H2 | |
123 ><P | |
124 >Create a new, unlocked mutex.</P | |
125 ></DIV | |
126 ><DIV | |
127 CLASS="REFSECT1" | |
128 ><A | |
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129 NAME="AEN7833" |
0 | 130 ></A |
131 ><H2 | |
132 >Examples</H2 | |
133 ><PRE | |
134 CLASS="PROGRAMLISTING" | |
135 >SDL_mutex *mut; | |
136 | |
137 mut=SDL_CreateMutex(); | |
138 . | |
139 . | |
140 if(SDL_mutexP(mut)==-1){ | |
141 fprintf(stderr, "Couldn't lock mutex\n"); | |
142 exit(-1); | |
143 } | |
144 . | |
145 /* Do stuff while mutex is locked */ | |
146 . | |
147 . | |
148 if(SDL_mutexV(mut)==-1){ | |
149 fprintf(stderr, "Couldn't unlock mutex\n"); | |
150 exit(-1); | |
151 } | |
152 | |
153 SDL_DestroyMutex(mut); </PRE | |
154 ></DIV | |
155 ><DIV | |
156 CLASS="REFSECT1" | |
157 ><A | |
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158 NAME="AEN7836" |
0 | 159 ></A |
160 ><H2 | |
161 >See Also</H2 | |
162 ><P | |
163 ><A | |
164 HREF="sdlmutexp.html" | |
165 ><TT | |
166 CLASS="FUNCTION" | |
167 >SDL_mutexP</TT | |
168 ></A | |
169 >, | |
170 <A | |
171 HREF="sdlmutexv.html" | |
172 ><TT | |
173 CLASS="FUNCTION" | |
174 >SDL_mutexV</TT | |
175 ></A | |
176 >, | |
177 <A | |
178 HREF="sdldestroymutex.html" | |
179 ><TT | |
180 CLASS="FUNCTION" | |
181 >SDL_DestroyMutex</TT | |
182 ></A | |
183 ></P | |
184 ></DIV | |
185 ><DIV | |
186 CLASS="NAVFOOTER" | |
187 ><HR | |
188 ALIGN="LEFT" | |
189 WIDTH="100%"><TABLE | |
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190 SUMMARY="Footer navigation table" |
0 | 191 WIDTH="100%" |
192 BORDER="0" | |
193 CELLPADDING="0" | |
194 CELLSPACING="0" | |
195 ><TR | |
196 ><TD | |
197 WIDTH="33%" | |
198 ALIGN="left" | |
199 VALIGN="top" | |
200 ><A | |
201 HREF="sdlkillthread.html" | |
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202 ACCESSKEY="P" |
0 | 203 >Prev</A |
204 ></TD | |
205 ><TD | |
206 WIDTH="34%" | |
207 ALIGN="center" | |
208 VALIGN="top" | |
209 ><A | |
210 HREF="index.html" | |
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211 ACCESSKEY="H" |
0 | 212 >Home</A |
213 ></TD | |
214 ><TD | |
215 WIDTH="33%" | |
216 ALIGN="right" | |
217 VALIGN="top" | |
218 ><A | |
219 HREF="sdldestroymutex.html" | |
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220 ACCESSKEY="N" |
0 | 221 >Next</A |
222 ></TD | |
223 ></TR | |
224 ><TR | |
225 ><TD | |
226 WIDTH="33%" | |
227 ALIGN="left" | |
228 VALIGN="top" | |
229 >SDL_KillThread</TD | |
230 ><TD | |
231 WIDTH="34%" | |
232 ALIGN="center" | |
233 VALIGN="top" | |
234 ><A | |
235 HREF="thread.html" | |
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236 ACCESSKEY="U" |
0 | 237 >Up</A |
238 ></TD | |
239 ><TD | |
240 WIDTH="33%" | |
241 ALIGN="right" | |
242 VALIGN="top" | |
243 >SDL_DestroyMutex</TD | |
244 ></TR | |
245 ></TABLE | |
246 ></DIV | |
247 ></BODY | |
248 ></HTML | |
249 > |