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annotate docs/html/sdlenablekeyrepeat.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_EnableKeyRepeat</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_EnableUNICODE" | |
17 HREF="sdlenableunicode.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_GetMouseState" | |
20 HREF="sdlgetmousestate.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="sdlenableunicode.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="sdlgetmousestate.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="SDLENABLEKEYREPEAT" | |
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74 ></A |
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75 >SDL_EnableKeyRepeat</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN5839" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_EnableKeyRepeat -- Set keyboard repeat rate.</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN5842" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN5843" |
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_EnableKeyRepeat</B | |
108 ></CODE | |
109 >(int delay, int interval);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN5849" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Enables or disables the keyboard repeat rate. <TT | |
124 CLASS="PARAMETER" | |
125 ><I | |
126 >delay</I | |
127 ></TT | |
128 > specifies how long the key must be pressed before it begins repeating, it then repeats at the speed specified by <TT | |
129 CLASS="PARAMETER" | |
130 ><I | |
131 >interval</I | |
132 ></TT | |
133 >. Both <TT | |
134 CLASS="PARAMETER" | |
135 ><I | |
136 >delay</I | |
137 ></TT | |
138 > and <TT | |
139 CLASS="PARAMETER" | |
140 ><I | |
141 >interval</I | |
142 ></TT | |
143 > are expressed in milliseconds.</P | |
144 ><P | |
145 >Setting <TT | |
146 CLASS="PARAMETER" | |
147 ><I | |
148 >delay</I | |
149 ></TT | |
150 > to 0 disables key repeating completely. Good default values are <TT | |
151 CLASS="LITERAL" | |
152 >SDL_DEFAULT_REPEAT_DELAY</TT | |
153 > and <SPAN | |
154 CLASS="SYMBOL" | |
155 >SDL_DEFAULT_REPEAT_INTERVAL</SPAN | |
156 >.</P | |
157 ></DIV | |
158 ><DIV | |
159 CLASS="REFSECT1" | |
160 ><A | |
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161 NAME="AEN5860" |
0 | 162 ></A |
163 ><H2 | |
164 >Return Value</H2 | |
165 ><P | |
166 >Returns <SPAN | |
167 CLASS="RETURNVALUE" | |
168 >0</SPAN | |
169 > on success and <SPAN | |
170 CLASS="RETURNVALUE" | |
171 >-1</SPAN | |
172 > on failure.</P | |
173 ></DIV | |
174 ><DIV | |
175 CLASS="NAVFOOTER" | |
176 ><HR | |
177 ALIGN="LEFT" | |
178 WIDTH="100%"><TABLE | |
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179 SUMMARY="Footer navigation table" |
0 | 180 WIDTH="100%" |
181 BORDER="0" | |
182 CELLPADDING="0" | |
183 CELLSPACING="0" | |
184 ><TR | |
185 ><TD | |
186 WIDTH="33%" | |
187 ALIGN="left" | |
188 VALIGN="top" | |
189 ><A | |
190 HREF="sdlenableunicode.html" | |
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191 ACCESSKEY="P" |
0 | 192 >Prev</A |
193 ></TD | |
194 ><TD | |
195 WIDTH="34%" | |
196 ALIGN="center" | |
197 VALIGN="top" | |
198 ><A | |
199 HREF="index.html" | |
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200 ACCESSKEY="H" |
0 | 201 >Home</A |
202 ></TD | |
203 ><TD | |
204 WIDTH="33%" | |
205 ALIGN="right" | |
206 VALIGN="top" | |
207 ><A | |
208 HREF="sdlgetmousestate.html" | |
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209 ACCESSKEY="N" |
0 | 210 >Next</A |
211 ></TD | |
212 ></TR | |
213 ><TR | |
214 ><TD | |
215 WIDTH="33%" | |
216 ALIGN="left" | |
217 VALIGN="top" | |
218 >SDL_EnableUNICODE</TD | |
219 ><TD | |
220 WIDTH="34%" | |
221 ALIGN="center" | |
222 VALIGN="top" | |
223 ><A | |
224 HREF="eventfunctions.html" | |
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225 ACCESSKEY="U" |
0 | 226 >Up</A |
227 ></TD | |
228 ><TD | |
229 WIDTH="33%" | |
230 ALIGN="right" | |
231 VALIGN="top" | |
232 >SDL_GetMouseState</TD | |
233 ></TR | |
234 ></TABLE | |
235 ></DIV | |
236 ></BODY | |
237 ></HTML | |
238 > |