Mercurial > sdl-ios-xcode
annotate docs/html/sdljoyballevent.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_JoyBallEvent</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="SDL Event Structures." | |
14 HREF="eventstructures.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_JoyHatEvent" | |
17 HREF="sdljoyhatevent.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_ResizeEvent" | |
20 HREF="sdlresizeevent.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="sdljoyhatevent.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="sdlresizeevent.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="SDLJOYBALLEVENT" | |
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74 ></A |
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75 >SDL_JoyBallEvent</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN4396" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_JoyBallEvent -- Joystick trackball motion event structure</DIV | |
84 ><DIV | |
85 CLASS="REFSECT1" | |
86 ><A | |
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87 NAME="AEN4399" |
0 | 88 ></A |
89 ><H2 | |
90 >Structure Definition</H2 | |
91 ><PRE | |
92 CLASS="PROGRAMLISTING" | |
93 >typedef struct{ | |
94 Uint8 type; | |
95 Uint8 which; | |
96 Uint8 ball; | |
97 Sint16 xrel, yrel; | |
98 } SDL_JoyBallEvent;</PRE | |
99 ></DIV | |
100 ><DIV | |
101 CLASS="REFSECT1" | |
102 ><A | |
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103 NAME="AEN4402" |
0 | 104 ></A |
105 ><H2 | |
106 >Structure Data</H2 | |
107 ><DIV | |
108 CLASS="INFORMALTABLE" | |
109 ><A | |
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110 NAME="AEN4404" |
0 | 111 ></A |
112 ><P | |
113 ></P | |
114 ><TABLE | |
115 BORDER="0" | |
116 CLASS="CALSTABLE" | |
117 ><TBODY | |
118 ><TR | |
119 ><TD | |
120 ALIGN="LEFT" | |
121 VALIGN="TOP" | |
122 ><TT | |
123 CLASS="STRUCTFIELD" | |
124 ><I | |
125 >type</I | |
126 ></TT | |
127 ></TD | |
128 ><TD | |
129 ALIGN="LEFT" | |
130 VALIGN="TOP" | |
131 ><TT | |
132 CLASS="LITERAL" | |
133 >SDL_JOYBALLMOTION</TT | |
134 ></TD | |
135 ></TR | |
136 ><TR | |
137 ><TD | |
138 ALIGN="LEFT" | |
139 VALIGN="TOP" | |
140 ><TT | |
141 CLASS="STRUCTFIELD" | |
142 ><I | |
143 >which</I | |
144 ></TT | |
145 ></TD | |
146 ><TD | |
147 ALIGN="LEFT" | |
148 VALIGN="TOP" | |
149 >Joystick device index</TD | |
150 ></TR | |
151 ><TR | |
152 ><TD | |
153 ALIGN="LEFT" | |
154 VALIGN="TOP" | |
155 ><TT | |
156 CLASS="STRUCTFIELD" | |
157 ><I | |
158 >ball</I | |
159 ></TT | |
160 ></TD | |
161 ><TD | |
162 ALIGN="LEFT" | |
163 VALIGN="TOP" | |
164 >Joystick trackball index</TD | |
165 ></TR | |
166 ><TR | |
167 ><TD | |
168 ALIGN="LEFT" | |
169 VALIGN="TOP" | |
170 ><TT | |
171 CLASS="STRUCTFIELD" | |
172 ><I | |
173 >xrel</I | |
174 ></TT | |
175 >, <TT | |
176 CLASS="STRUCTFIELD" | |
177 ><I | |
178 >yrel</I | |
179 ></TT | |
180 ></TD | |
181 ><TD | |
182 ALIGN="LEFT" | |
183 VALIGN="TOP" | |
184 >The relative motion in the X/Y direction</TD | |
185 ></TR | |
186 ></TBODY | |
187 ></TABLE | |
188 ><P | |
189 ></P | |
190 ></DIV | |
191 ></DIV | |
192 ><DIV | |
193 CLASS="REFSECT1" | |
194 ><A | |
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195 NAME="AEN4425" |
0 | 196 ></A |
197 ><H2 | |
198 >Description</H2 | |
199 ><P | |
200 ><SPAN | |
201 CLASS="STRUCTNAME" | |
202 >SDL_JoyBallEvent</SPAN | |
203 > is a member of the <A | |
204 HREF="sdlevent.html" | |
205 ><SPAN | |
206 CLASS="STRUCTNAME" | |
207 >SDL_Event</SPAN | |
208 ></A | |
209 > union and is used when an event of type <TT | |
210 CLASS="LITERAL" | |
211 >SDL_JOYBALLMOTION</TT | |
212 > is reported.</P | |
213 ><P | |
214 >A <TT | |
215 CLASS="LITERAL" | |
216 >SDL_JOYBALLMOTION</TT | |
217 > event occurs when a user moves a trackball on the joystick. The field <TT | |
218 CLASS="STRUCTFIELD" | |
219 ><I | |
220 >which</I | |
221 ></TT | |
222 > is the index of the joystick that reported the event and <TT | |
223 CLASS="STRUCTFIELD" | |
224 ><I | |
225 >ball</I | |
226 ></TT | |
227 > is the index of the trackball (for a more detailed explaination see the <A | |
228 HREF="joystick.html" | |
229 >Joystick section</A | |
230 >). Trackballs only return relative motion, this is the change in position on the ball since it was last polled (last cycle of the event loop) and it is stored in <TT | |
231 CLASS="STRUCTFIELD" | |
232 ><I | |
233 >xrel</I | |
234 ></TT | |
235 > and <TT | |
236 CLASS="STRUCTFIELD" | |
237 ><I | |
238 >yrel</I | |
239 ></TT | |
240 >.</P | |
241 ></DIV | |
242 ><DIV | |
243 CLASS="REFSECT1" | |
244 ><A | |
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245 NAME="AEN4439" |
0 | 246 ></A |
247 ><H2 | |
248 >See Also</H2 | |
249 ><P | |
250 ><A | |
251 HREF="sdlevent.html" | |
252 ><SPAN | |
253 CLASS="STRUCTNAME" | |
254 >SDL_Event</SPAN | |
255 ></A | |
256 >, | |
257 <A | |
258 HREF="joystick.html" | |
259 >Joystick Functions</A | |
260 >, | |
261 <A | |
262 HREF="sdljoystickeventstate.html" | |
263 ><TT | |
264 CLASS="FUNCTION" | |
265 >SDL_JoystickEventState</TT | |
266 ></A | |
267 >, | |
268 <A | |
269 HREF="sdljoystickgetball.html" | |
270 ><TT | |
271 CLASS="FUNCTION" | |
272 >SDL_JoystickGetBall</TT | |
273 ></A | |
274 ></P | |
275 ></DIV | |
276 ><DIV | |
277 CLASS="NAVFOOTER" | |
278 ><HR | |
279 ALIGN="LEFT" | |
280 WIDTH="100%"><TABLE | |
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281 SUMMARY="Footer navigation table" |
0 | 282 WIDTH="100%" |
283 BORDER="0" | |
284 CELLPADDING="0" | |
285 CELLSPACING="0" | |
286 ><TR | |
287 ><TD | |
288 WIDTH="33%" | |
289 ALIGN="left" | |
290 VALIGN="top" | |
291 ><A | |
292 HREF="sdljoyhatevent.html" | |
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293 ACCESSKEY="P" |
0 | 294 >Prev</A |
295 ></TD | |
296 ><TD | |
297 WIDTH="34%" | |
298 ALIGN="center" | |
299 VALIGN="top" | |
300 ><A | |
301 HREF="index.html" | |
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302 ACCESSKEY="H" |
0 | 303 >Home</A |
304 ></TD | |
305 ><TD | |
306 WIDTH="33%" | |
307 ALIGN="right" | |
308 VALIGN="top" | |
309 ><A | |
310 HREF="sdlresizeevent.html" | |
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311 ACCESSKEY="N" |
0 | 312 >Next</A |
313 ></TD | |
314 ></TR | |
315 ><TR | |
316 ><TD | |
317 WIDTH="33%" | |
318 ALIGN="left" | |
319 VALIGN="top" | |
320 >SDL_JoyHatEvent</TD | |
321 ><TD | |
322 WIDTH="34%" | |
323 ALIGN="center" | |
324 VALIGN="top" | |
325 ><A | |
326 HREF="eventstructures.html" | |
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327 ACCESSKEY="U" |
0 | 328 >Up</A |
329 ></TD | |
330 ><TD | |
331 WIDTH="33%" | |
332 ALIGN="right" | |
333 VALIGN="top" | |
334 >SDL_ResizeEvent</TD | |
335 ></TR | |
336 ></TABLE | |
337 ></DIV | |
338 ></BODY | |
339 ></HTML | |
340 > |