Mercurial > sdl-ios-xcode
annotate docs/html/sdljoystickeventstate.html @ 2787:93764fe8601a
It turns out both the software and the OpenGL renderer had the same problem.
According to the spec, when SDL_SRCALPHA is set, the colorkey is ignored, so
we just need to convert the colorkey into the alpha channel.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 25 Nov 2008 05:29:14 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_JoystickEventState</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="Event Functions." | |
14 HREF="eventfunctions.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_GetAppState" | |
17 HREF="sdlgetappstate.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="Joystick" | |
20 HREF="joystick.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="sdlgetappstate.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="joystick.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="SDLJOYSTICKEVENTSTATE" | |
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74 ></A |
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75 >SDL_JoystickEventState</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN5969" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_JoystickEventState -- Enable/disable joystick event polling</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN5972" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN5973" |
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_JoystickEventState</B | |
108 ></CODE | |
109 >(int state);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN5979" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >This function is used to enable or disable joystick event processing. With joystick event processing disabled you will have to update joystick states with <A | |
124 HREF="sdljoystickupdate.html" | |
125 ><TT | |
126 CLASS="FUNCTION" | |
127 >SDL_JoystickUpdate</TT | |
128 ></A | |
129 > and read the joystick information manually. <TT | |
130 CLASS="PARAMETER" | |
131 ><I | |
132 >state</I | |
133 ></TT | |
134 > is either <TT | |
135 CLASS="LITERAL" | |
136 >SDL_QUERY</TT | |
137 >, <TT | |
138 CLASS="LITERAL" | |
139 >SDL_ENABLE</TT | |
140 > or <TT | |
141 CLASS="LITERAL" | |
142 >SDL_IGNORE</TT | |
143 >.</P | |
144 ><DIV | |
145 CLASS="NOTE" | |
146 ><BLOCKQUOTE | |
147 CLASS="NOTE" | |
148 ><P | |
149 ><B | |
150 >Note: </B | |
151 >Joystick event handling is prefered</P | |
152 ></BLOCKQUOTE | |
153 ></DIV | |
154 ></DIV | |
155 ><DIV | |
156 CLASS="REFSECT1" | |
157 ><A | |
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158 NAME="AEN5990" |
0 | 159 ></A |
160 ><H2 | |
161 >Return Value</H2 | |
162 ><P | |
163 >If <TT | |
164 CLASS="PARAMETER" | |
165 ><I | |
166 >state</I | |
167 ></TT | |
168 > is <TT | |
169 CLASS="LITERAL" | |
170 >SDL_QUERY</TT | |
171 > then the current state is returned, otherwise the new processing <TT | |
172 CLASS="PARAMETER" | |
173 ><I | |
174 >state</I | |
175 ></TT | |
176 > is returned.</P | |
177 ></DIV | |
178 ><DIV | |
179 CLASS="REFSECT1" | |
180 ><A | |
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181 NAME="AEN5996" |
0 | 182 ></A |
183 ><H2 | |
184 >See Also</H2 | |
185 ><P | |
186 ><A | |
187 HREF="joystick.html" | |
188 >SDL Joystick Functions</A | |
189 >, | |
190 <A | |
191 HREF="sdljoystickupdate.html" | |
192 ><TT | |
193 CLASS="FUNCTION" | |
194 >SDL_JoystickUpdate</TT | |
195 ></A | |
196 >, | |
197 <A | |
198 HREF="sdljoyaxisevent.html" | |
199 ><SPAN | |
200 CLASS="STRUCTNAME" | |
201 >SDL_JoyAxisEvent</SPAN | |
202 ></A | |
203 >, | |
204 <A | |
205 HREF="sdljoyballevent.html" | |
206 ><SPAN | |
207 CLASS="STRUCTNAME" | |
208 >SDL_JoyBallEvent</SPAN | |
209 ></A | |
210 >, | |
211 <A | |
212 HREF="sdljoybuttonevent.html" | |
213 ><SPAN | |
214 CLASS="STRUCTNAME" | |
215 >SDL_JoyButtonEvent</SPAN | |
216 ></A | |
217 >, | |
218 <A | |
219 HREF="sdljoyhatevent.html" | |
220 ><SPAN | |
221 CLASS="STRUCTNAME" | |
222 >SDL_JoyHatEvent</SPAN | |
223 ></A | |
224 ></P | |
225 ></DIV | |
226 ><DIV | |
227 CLASS="NAVFOOTER" | |
228 ><HR | |
229 ALIGN="LEFT" | |
230 WIDTH="100%"><TABLE | |
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231 SUMMARY="Footer navigation table" |
0 | 232 WIDTH="100%" |
233 BORDER="0" | |
234 CELLPADDING="0" | |
235 CELLSPACING="0" | |
236 ><TR | |
237 ><TD | |
238 WIDTH="33%" | |
239 ALIGN="left" | |
240 VALIGN="top" | |
241 ><A | |
242 HREF="sdlgetappstate.html" | |
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243 ACCESSKEY="P" |
0 | 244 >Prev</A |
245 ></TD | |
246 ><TD | |
247 WIDTH="34%" | |
248 ALIGN="center" | |
249 VALIGN="top" | |
250 ><A | |
251 HREF="index.html" | |
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252 ACCESSKEY="H" |
0 | 253 >Home</A |
254 ></TD | |
255 ><TD | |
256 WIDTH="33%" | |
257 ALIGN="right" | |
258 VALIGN="top" | |
259 ><A | |
260 HREF="joystick.html" | |
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261 ACCESSKEY="N" |
0 | 262 >Next</A |
263 ></TD | |
264 ></TR | |
265 ><TR | |
266 ><TD | |
267 WIDTH="33%" | |
268 ALIGN="left" | |
269 VALIGN="top" | |
270 >SDL_GetAppState</TD | |
271 ><TD | |
272 WIDTH="34%" | |
273 ALIGN="center" | |
274 VALIGN="top" | |
275 ><A | |
276 HREF="eventfunctions.html" | |
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277 ACCESSKEY="U" |
0 | 278 >Up</A |
279 ></TD | |
280 ><TD | |
281 WIDTH="33%" | |
282 ALIGN="right" | |
283 VALIGN="top" | |
284 >Joystick</TD | |
285 ></TR | |
286 ></TABLE | |
287 ></DIV | |
288 ></BODY | |
289 ></HTML | |
290 > |