Mercurial > sdl-ios-xcode
annotate docs/html/sdlcdnumdrives.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_CDNumDrives</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="CD-ROM" | |
14 HREF="cdrom.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="CD-ROM" | |
17 HREF="cdrom.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_CDName" | |
20 HREF="sdlcdname.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="cdrom.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="sdlcdname.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="SDLCDNUMDRIVES" | |
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74 ></A |
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75 >SDL_CDNumDrives</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN7218" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_CDNumDrives -- Returns the number of CD-ROM drives on the system.</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN7221" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN7222" |
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_CDNumDrives</B | |
108 ></CODE | |
109 >(void);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN7228" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Returns the number of CD-ROM drives on the system.</P | |
124 ></DIV | |
125 ><DIV | |
126 CLASS="REFSECT1" | |
127 ><A | |
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128 NAME="AEN7231" |
0 | 129 ></A |
130 ><H2 | |
131 >See Also</H2 | |
132 ><P | |
133 ><A | |
134 HREF="sdlcdopen.html" | |
135 ><TT | |
136 CLASS="FUNCTION" | |
137 >SDL_CDOpen</TT | |
138 ></A | |
139 ></P | |
140 ></DIV | |
141 ><DIV | |
142 CLASS="NAVFOOTER" | |
143 ><HR | |
144 ALIGN="LEFT" | |
145 WIDTH="100%"><TABLE | |
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146 SUMMARY="Footer navigation table" |
0 | 147 WIDTH="100%" |
148 BORDER="0" | |
149 CELLPADDING="0" | |
150 CELLSPACING="0" | |
151 ><TR | |
152 ><TD | |
153 WIDTH="33%" | |
154 ALIGN="left" | |
155 VALIGN="top" | |
156 ><A | |
157 HREF="cdrom.html" | |
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158 ACCESSKEY="P" |
0 | 159 >Prev</A |
160 ></TD | |
161 ><TD | |
162 WIDTH="34%" | |
163 ALIGN="center" | |
164 VALIGN="top" | |
165 ><A | |
166 HREF="index.html" | |
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167 ACCESSKEY="H" |
0 | 168 >Home</A |
169 ></TD | |
170 ><TD | |
171 WIDTH="33%" | |
172 ALIGN="right" | |
173 VALIGN="top" | |
174 ><A | |
175 HREF="sdlcdname.html" | |
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176 ACCESSKEY="N" |
0 | 177 >Next</A |
178 ></TD | |
179 ></TR | |
180 ><TR | |
181 ><TD | |
182 WIDTH="33%" | |
183 ALIGN="left" | |
184 VALIGN="top" | |
185 >CD-ROM</TD | |
186 ><TD | |
187 WIDTH="34%" | |
188 ALIGN="center" | |
189 VALIGN="top" | |
190 ><A | |
191 HREF="cdrom.html" | |
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192 ACCESSKEY="U" |
0 | 193 >Up</A |
194 ></TD | |
195 ><TD | |
196 WIDTH="33%" | |
197 ALIGN="right" | |
198 VALIGN="top" | |
199 >SDL_CDName</TD | |
200 ></TR | |
201 ></TABLE | |
202 ></DIV | |
203 ></BODY | |
204 ></HTML | |
205 > |