Mercurial > sdl-ios-xcode
annotate docs/html/sdlenablekeyrepeat.html @ 1157:baf35853ad54
Date: Mon, 10 Oct 2005 13:09:32 +0300
From: Tommi Kyntola <tommi.kyntola@ray.fi>
To: sdl@libsdl.org
Subject: [SDL] [RFC] get_ticks broken on linux
It uses gettimeofday to calculate the timedifference.
Gettimeofday returns current time which is seldom monotonous.
This breaks SDL timer subsystem. (time callbacks and all that
get borked when the time difference ms is suddenly ~ 2^32)
I posted a message about this earlier but got no response.
Some thoughts on this matter would be appreciated.
(Or even an explanation for the lack of interest.)
A patch below would use the posix timers that have been around
since posix 93 and do provide a good source of monotonous time
on linux boxes (and on few others too).
The following patch is also availabe at:
http://www.hut.fi/u/tkyntola/SDL-1.2.9-clockfix.patch
It's against 1.2.9, but I can easily rediffit against
the cvs branch is needed.
cheers,
Tommi Kyntola tommi.kyntola@ray.fi
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Tue, 11 Oct 2005 18:16:12 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 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 > |