Mercurial > sdl-ios-xcode
annotate docs/html/sdljoystickgetball.html @ 4427:eada7e321df6 SDL-1.2
Fixed bug #943
Ozkan Sezer 2010-02-06 12:31:06 PST
Hi:
Here are some small fixes for compiling SDL against mingw-w64.
(see http://mingw-w64.sourceforge.net/ . Despite the name, it
supports both win32 and win64.) Two patches, one for SDL-1.2
and one for SDL-1.3 attached.
src/audio/windx5/directx.h and src/video/windx5/directx.h (both
SDL-1.2 and SDL-1.3.) I get compilation errors about some union
not having a member named u1 and alike, because of other system
headers being included before this one and them already defining
DUMMYUNIONNAME and stuff. This header probably assumes that those
stuff are defined in windef.h, but mingw-w64 headers define them
in _mingw.h. Easily fixed by moving NONAMELESSUNION definition to
the top of the file. SDL_dx5yuv.c (SDL-1.2-only) also needs to
include the header before SDL_video.h to avoid the same problem.
src/thread/win32/SDL_systhread.c (both SDL-1.2 and SDL-1.3.) :
The __GNUC__ case for pfnSDL_CurrentBeginThread is 32-bit centric
because _beginthreadex returns uintptr_t, not unsigned long which
is 32 bits in win64. Changing the return type to uintptr_t fixes
it.
Hope these are useful. Thanks.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Wed, 10 Mar 2010 15:04:13 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_JoystickGetBall</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="Joystick" | |
14 HREF="joystick.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_JoystickGetButton" | |
17 HREF="sdljoystickgetbutton.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_JoystickClose" | |
20 HREF="sdljoystickclose.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="sdljoystickgetbutton.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="sdljoystickclose.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="SDLJOYSTICKGETBALL" | |
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74 ></A |
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75 >SDL_JoystickGetBall</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN6433" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_JoystickGetBall -- Get relative trackball motion</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN6436" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN6437" |
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_JoystickGetBall</B | |
108 ></CODE | |
109 >(SDL_Joystick *joystick, int ball, int *dx, int *dy);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN6443" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Get the <TT | |
124 CLASS="PARAMETER" | |
125 ><I | |
126 >ball</I | |
127 ></TT | |
128 > axis change.</P | |
129 ><P | |
130 >Trackballs can only return relative motion since the last call to <TT | |
131 CLASS="FUNCTION" | |
132 >SDL_JoystickGetBall</TT | |
133 >, these motion deltas a placed into <TT | |
134 CLASS="PARAMETER" | |
135 ><I | |
136 >dx</I | |
137 ></TT | |
138 > and <TT | |
139 CLASS="PARAMETER" | |
140 ><I | |
141 >dy</I | |
142 ></TT | |
143 >.</P | |
144 ></DIV | |
145 ><DIV | |
146 CLASS="REFSECT1" | |
147 ><A | |
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148 NAME="AEN6451" |
0 | 149 ></A |
150 ><H2 | |
151 >Return Value</H2 | |
152 ><P | |
153 >Returns <SPAN | |
154 CLASS="RETURNVALUE" | |
155 >0</SPAN | |
156 > on success or <SPAN | |
157 CLASS="RETURNVALUE" | |
158 >-1</SPAN | |
159 > on failure</P | |
160 ></DIV | |
161 ><DIV | |
162 CLASS="REFSECT1" | |
163 ><A | |
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164 NAME="AEN6456" |
0 | 165 ></A |
166 ><H2 | |
167 >Examples</H2 | |
168 ><P | |
169 ><PRE | |
170 CLASS="PROGRAMLISTING" | |
171 >int delta_x, delta_y; | |
172 SDL_Joystick *joy; | |
173 . | |
174 . | |
175 . | |
176 SDL_JoystickUpdate(); | |
177 if(SDL_JoystickGetBall(joy, 0, &delta_x, &delta_y)==-1) | |
178 printf("TrackBall Read Error!\n"); | |
179 printf("Trackball Delta- X:%d, Y:%d\n", delta_x, delta_y);</PRE | |
180 ></P | |
181 ></DIV | |
182 ><DIV | |
183 CLASS="REFSECT1" | |
184 ><A | |
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185 NAME="AEN6460" |
0 | 186 ></A |
187 ><H2 | |
188 >See Also</H2 | |
189 ><P | |
190 ><A | |
191 HREF="sdljoysticknumballs.html" | |
192 ><TT | |
193 CLASS="FUNCTION" | |
194 >SDL_JoystickNumBalls</TT | |
195 ></A | |
196 ></P | |
197 ></DIV | |
198 ><DIV | |
199 CLASS="NAVFOOTER" | |
200 ><HR | |
201 ALIGN="LEFT" | |
202 WIDTH="100%"><TABLE | |
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203 SUMMARY="Footer navigation table" |
0 | 204 WIDTH="100%" |
205 BORDER="0" | |
206 CELLPADDING="0" | |
207 CELLSPACING="0" | |
208 ><TR | |
209 ><TD | |
210 WIDTH="33%" | |
211 ALIGN="left" | |
212 VALIGN="top" | |
213 ><A | |
214 HREF="sdljoystickgetbutton.html" | |
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215 ACCESSKEY="P" |
0 | 216 >Prev</A |
217 ></TD | |
218 ><TD | |
219 WIDTH="34%" | |
220 ALIGN="center" | |
221 VALIGN="top" | |
222 ><A | |
223 HREF="index.html" | |
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224 ACCESSKEY="H" |
0 | 225 >Home</A |
226 ></TD | |
227 ><TD | |
228 WIDTH="33%" | |
229 ALIGN="right" | |
230 VALIGN="top" | |
231 ><A | |
232 HREF="sdljoystickclose.html" | |
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233 ACCESSKEY="N" |
0 | 234 >Next</A |
235 ></TD | |
236 ></TR | |
237 ><TR | |
238 ><TD | |
239 WIDTH="33%" | |
240 ALIGN="left" | |
241 VALIGN="top" | |
242 >SDL_JoystickGetButton</TD | |
243 ><TD | |
244 WIDTH="34%" | |
245 ALIGN="center" | |
246 VALIGN="top" | |
247 ><A | |
248 HREF="joystick.html" | |
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249 ACCESSKEY="U" |
0 | 250 >Up</A |
251 ></TD | |
252 ><TD | |
253 WIDTH="33%" | |
254 ALIGN="right" | |
255 VALIGN="top" | |
256 >SDL_JoystickClose</TD | |
257 ></TR | |
258 ></TABLE | |
259 ></DIV | |
260 ></BODY | |
261 ></HTML | |
262 > |