Mercurial > sdl-ios-xcode
annotate docs/html/sdljoystickeventstate.html @ 1295:c3e36ac8a94c
Date: Sun, 6 Mar 2005 17:06:20 +0100
From: Per Inge Mathisen
Subject: [SDL] Fullscreen refresh on win32
Windows has a terrible default for fullscreen 3D apps of 60mhz refresh
rate. This can be fixed by the user by going into his driver's
control panel and forcing the refresh rate higher. However, this not a
very user friendly way about it, and in any case SDL contains no code
that could figure out this that condition has afflicted the user.
So the question is, could SDL fix this for the user? It is possible
under Windows to request a higher refresh rate. The danger is of
course that if the user has an old monitor, and you request a too high
refresh rate, the monitor could be damaged. However, I believe there
might be a way around that: Check before switching what refresh rate
the user's desktop runs in, and if our fullscreen dimensions are equal
or less than those of the desktop, use the higher refresh rate of 60
and the desktop rate.
Since most users run their desktops in the same or higher resolution
something sane, this should fix this problem for most users.
Thoughts?
An alternative is to add an SDL_GL_GetAttribute(SDL_GL_REFRESH_RATE)
option so that programs can bitch at their users at their own
convenience.
- Per
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 30 Jan 2006 06:56:10 +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 > |