Mercurial > sdl-ios-xcode
annotate docs/html/sdllockyuvoverlay.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 |
children |
rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_LockYUVOverlay</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="Video" | |
14 HREF="video.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_CreateYUVOverlay" | |
17 HREF="sdlcreateyuvoverlay.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_UnlockYUVOverlay" | |
20 HREF="sdlunlockyuvoverlay.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="sdlcreateyuvoverlay.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="sdlunlockyuvoverlay.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="SDLLOCKYUVOVERLAY" | |
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74 ></A |
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75 >SDL_LockYUVOverlay</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN2844" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_LockYUVOverlay -- Lock an overlay</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN2847" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN2848" |
0 | 95 ></A |
96 ><P | |
97 ></P | |
98 ><PRE | |
99 CLASS="FUNCSYNOPSISINFO" | |
100 >#include "SDL.h"</PRE | |
101 ><P | |
102 ><CODE | |
103 ><CODE | |
104 CLASS="FUNCDEF" | |
105 >int <B | |
106 CLASS="FSFUNC" | |
107 >SDL_LockYUVOverlay</B | |
108 ></CODE | |
109 >(SDL_Overlay *overlay);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN2854" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Much the same as <A | |
124 HREF="sdllocksurface.html" | |
125 ><TT | |
126 CLASS="FUNCTION" | |
127 >SDL_LockSurface</TT | |
128 ></A | |
129 >, <TT | |
130 CLASS="FUNCTION" | |
131 >SDL_LockYUVOverlay</TT | |
132 > locks the <A | |
133 HREF="sdloverlay.html" | |
134 ><TT | |
135 CLASS="PARAMETER" | |
136 ><I | |
137 >overlay</I | |
138 ></TT | |
139 ></A | |
140 > for direct access to pixel data.</P | |
141 ></DIV | |
142 ><DIV | |
143 CLASS="REFSECT1" | |
144 ><A | |
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145 NAME="AEN2862" |
0 | 146 ></A |
147 ><H2 | |
148 >Return Value</H2 | |
149 ><P | |
150 >Returns <SPAN | |
151 CLASS="RETURNVALUE" | |
152 >0</SPAN | |
153 > on success, or <SPAN | |
154 CLASS="RETURNVALUE" | |
155 >-1</SPAN | |
156 > on an error.</P | |
157 ></DIV | |
158 ><DIV | |
159 CLASS="REFSECT1" | |
160 ><A | |
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161 NAME="AEN2867" |
0 | 162 ></A |
163 ><H2 | |
164 >See Also</H2 | |
165 ><P | |
166 ><A | |
167 HREF="sdlunlockyuvoverlay.html" | |
168 ><TT | |
169 CLASS="FUNCTION" | |
170 >SDL_UnlockYUVOverlay</TT | |
171 ></A | |
172 >, | |
173 <A | |
174 HREF="sdlcreateyuvoverlay.html" | |
175 ><TT | |
176 CLASS="FUNCTION" | |
177 >SDL_CreateYUVOverlay</TT | |
178 ></A | |
179 >, | |
180 <A | |
181 HREF="sdloverlay.html" | |
182 ><SPAN | |
183 CLASS="STRUCTNAME" | |
184 >SDL_Overlay</SPAN | |
185 ></A | |
186 ></P | |
187 ></DIV | |
188 ><DIV | |
189 CLASS="NAVFOOTER" | |
190 ><HR | |
191 ALIGN="LEFT" | |
192 WIDTH="100%"><TABLE | |
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193 SUMMARY="Footer navigation table" |
0 | 194 WIDTH="100%" |
195 BORDER="0" | |
196 CELLPADDING="0" | |
197 CELLSPACING="0" | |
198 ><TR | |
199 ><TD | |
200 WIDTH="33%" | |
201 ALIGN="left" | |
202 VALIGN="top" | |
203 ><A | |
204 HREF="sdlcreateyuvoverlay.html" | |
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205 ACCESSKEY="P" |
0 | 206 >Prev</A |
207 ></TD | |
208 ><TD | |
209 WIDTH="34%" | |
210 ALIGN="center" | |
211 VALIGN="top" | |
212 ><A | |
213 HREF="index.html" | |
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214 ACCESSKEY="H" |
0 | 215 >Home</A |
216 ></TD | |
217 ><TD | |
218 WIDTH="33%" | |
219 ALIGN="right" | |
220 VALIGN="top" | |
221 ><A | |
222 HREF="sdlunlockyuvoverlay.html" | |
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223 ACCESSKEY="N" |
0 | 224 >Next</A |
225 ></TD | |
226 ></TR | |
227 ><TR | |
228 ><TD | |
229 WIDTH="33%" | |
230 ALIGN="left" | |
231 VALIGN="top" | |
232 >SDL_CreateYUVOverlay</TD | |
233 ><TD | |
234 WIDTH="34%" | |
235 ALIGN="center" | |
236 VALIGN="top" | |
237 ><A | |
238 HREF="video.html" | |
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239 ACCESSKEY="U" |
0 | 240 >Up</A |
241 ></TD | |
242 ><TD | |
243 WIDTH="33%" | |
244 ALIGN="right" | |
245 VALIGN="top" | |
246 >SDL_UnlockYUVOverlay</TD | |
247 ></TR | |
248 ></TABLE | |
249 ></DIV | |
250 ></BODY | |
251 ></HTML | |
252 > |