Mercurial > sdl-ios-xcode
annotate docs/html/sdlquit.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 |
children |
rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_Quit</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="General" | |
14 HREF="general.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_QuitSubSystem" | |
17 HREF="sdlquitsubsystem.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_WasInit" | |
20 HREF="sdlwasinit.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="sdlquitsubsystem.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="sdlwasinit.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="SDLQUIT" | |
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74 ></A |
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75 >SDL_Quit</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN585" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_Quit -- Shut down SDL</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN588" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN589" |
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 >void <B | |
106 CLASS="FSFUNC" | |
107 >SDL_Quit</B | |
108 ></CODE | |
109 >(void);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
55
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118 NAME="AEN595" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 ><TT | |
124 CLASS="FUNCTION" | |
125 >SDL_Quit</TT | |
126 > shuts down all SDL subsystems and frees the resources allocated to them. This should always be called before you exit. For the sake of simplicity you can set <TT | |
127 CLASS="FUNCTION" | |
128 >SDL_Quit</TT | |
129 > as your <TT | |
130 CLASS="FUNCTION" | |
131 >atexit</TT | |
132 > call, like: | |
133 <PRE | |
134 CLASS="PROGRAMLISTING" | |
135 >SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO); | |
136 atexit(SDL_Quit); | |
137 . | |
138 .</PRE | |
139 ></P | |
140 ><DIV | |
141 CLASS="NOTE" | |
142 ><BLOCKQUOTE | |
143 CLASS="NOTE" | |
144 ><P | |
145 ><B | |
146 >Note: </B | |
147 >While using <TT | |
148 CLASS="FUNCTION" | |
149 >atexit</TT | |
150 > maybe be fine for small programs, more advanced users should shut down SDL in their own cleanup code. Plus, using <TT | |
151 CLASS="FUNCTION" | |
152 >atexit</TT | |
153 > in a library is a sure way to crash dynamically loaded code</P | |
154 ></BLOCKQUOTE | |
155 ></DIV | |
156 ></DIV | |
157 ><DIV | |
158 CLASS="REFSECT1" | |
159 ><A | |
55
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160 NAME="AEN606" |
0 | 161 ></A |
162 ><H2 | |
163 >See Also</H2 | |
164 ><P | |
165 ><A | |
166 HREF="sdlquitsubsystem.html" | |
167 ><TT | |
168 CLASS="FUNCTION" | |
169 >SDL_QuitSubsystem</TT | |
170 ></A | |
171 >, | |
172 <A | |
173 HREF="sdlinit.html" | |
174 ><TT | |
175 CLASS="FUNCTION" | |
176 >SDL_Init</TT | |
177 ></A | |
178 ></P | |
179 ></DIV | |
180 ><DIV | |
181 CLASS="NAVFOOTER" | |
182 ><HR | |
183 ALIGN="LEFT" | |
184 WIDTH="100%"><TABLE | |
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185 SUMMARY="Footer navigation table" |
0 | 186 WIDTH="100%" |
187 BORDER="0" | |
188 CELLPADDING="0" | |
189 CELLSPACING="0" | |
190 ><TR | |
191 ><TD | |
192 WIDTH="33%" | |
193 ALIGN="left" | |
194 VALIGN="top" | |
195 ><A | |
196 HREF="sdlquitsubsystem.html" | |
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197 ACCESSKEY="P" |
0 | 198 >Prev</A |
199 ></TD | |
200 ><TD | |
201 WIDTH="34%" | |
202 ALIGN="center" | |
203 VALIGN="top" | |
204 ><A | |
205 HREF="index.html" | |
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206 ACCESSKEY="H" |
0 | 207 >Home</A |
208 ></TD | |
209 ><TD | |
210 WIDTH="33%" | |
211 ALIGN="right" | |
212 VALIGN="top" | |
213 ><A | |
214 HREF="sdlwasinit.html" | |
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215 ACCESSKEY="N" |
0 | 216 >Next</A |
217 ></TD | |
218 ></TR | |
219 ><TR | |
220 ><TD | |
221 WIDTH="33%" | |
222 ALIGN="left" | |
223 VALIGN="top" | |
224 >SDL_QuitSubSystem</TD | |
225 ><TD | |
226 WIDTH="34%" | |
227 ALIGN="center" | |
228 VALIGN="top" | |
229 ><A | |
230 HREF="general.html" | |
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231 ACCESSKEY="U" |
0 | 232 >Up</A |
233 ></TD | |
234 ><TD | |
235 WIDTH="33%" | |
236 ALIGN="right" | |
237 VALIGN="top" | |
238 >SDL_WasInit</TD | |
239 ></TR | |
240 ></TABLE | |
241 ></DIV | |
242 ></BODY | |
243 ></HTML | |
244 > |