Mercurial > sdl-ios-xcode
annotate docs/html/sdlwmgrabinput.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_WM_GrabInput</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="Window Management" | |
| 14 HREF="wm.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_WM_ToggleFullScreen" | |
| 17 HREF="sdlwmtogglefullscreen.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="Events" | |
| 20 HREF="event.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="sdlwmtogglefullscreen.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="event.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="SDLWMGRABINPUT" | |
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74 ></A |
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75 >SDL_WM_GrabInput</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN3663" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_WM_GrabInput -- Grabs mouse and keyboard input.</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN3666" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN3667" |
| 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 >SDL_GrabMode <B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_WM_GrabInput</B | |
| 108 ></CODE | |
| 109 >(SDL_GrabMode mode);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN3673" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >Grabbing means that the mouse is confined to the application window, | |
| 124 and nearly all keyboard input is passed directly to the application, | |
| 125 and not interpreted by a window manager, if any.</P | |
| 126 ><P | |
| 127 >When <TT | |
| 128 CLASS="PARAMETER" | |
| 129 ><I | |
| 130 >mode</I | |
| 131 ></TT | |
| 132 > is <TT | |
| 133 CLASS="LITERAL" | |
| 134 >SDL_GRAB_QUERY</TT | |
| 135 > the grab mode is not changed, but the current grab mode is returned.</P | |
| 136 ><P | |
| 137 ><PRE | |
| 138 CLASS="PROGRAMLISTING" | |
| 139 >typedef enum { | |
| 140 SDL_GRAB_QUERY, | |
| 141 SDL_GRAB_OFF, | |
| 142 SDL_GRAB_ON | |
| 143 } SDL_GrabMode;</PRE | |
| 144 > | |
| 145 </P | |
| 146 ></DIV | |
| 147 ><DIV | |
| 148 CLASS="REFSECT1" | |
| 149 ><A | |
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150 NAME="AEN3681" |
| 0 | 151 ></A |
| 152 ><H2 | |
| 153 >Return Value</H2 | |
| 154 ><P | |
| 155 >The current/new <SPAN | |
| 156 CLASS="STRUCTNAME" | |
| 157 >SDL_GrabMode</SPAN | |
| 158 >.</P | |
| 159 ></DIV | |
| 160 ><DIV | |
| 161 CLASS="NAVFOOTER" | |
| 162 ><HR | |
| 163 ALIGN="LEFT" | |
| 164 WIDTH="100%"><TABLE | |
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165 SUMMARY="Footer navigation table" |
| 0 | 166 WIDTH="100%" |
| 167 BORDER="0" | |
| 168 CELLPADDING="0" | |
| 169 CELLSPACING="0" | |
| 170 ><TR | |
| 171 ><TD | |
| 172 WIDTH="33%" | |
| 173 ALIGN="left" | |
| 174 VALIGN="top" | |
| 175 ><A | |
| 176 HREF="sdlwmtogglefullscreen.html" | |
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parents:
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177 ACCESSKEY="P" |
| 0 | 178 >Prev</A |
| 179 ></TD | |
| 180 ><TD | |
| 181 WIDTH="34%" | |
| 182 ALIGN="center" | |
| 183 VALIGN="top" | |
| 184 ><A | |
| 185 HREF="index.html" | |
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186 ACCESSKEY="H" |
| 0 | 187 >Home</A |
| 188 ></TD | |
| 189 ><TD | |
| 190 WIDTH="33%" | |
| 191 ALIGN="right" | |
| 192 VALIGN="top" | |
| 193 ><A | |
| 194 HREF="event.html" | |
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195 ACCESSKEY="N" |
| 0 | 196 >Next</A |
| 197 ></TD | |
| 198 ></TR | |
| 199 ><TR | |
| 200 ><TD | |
| 201 WIDTH="33%" | |
| 202 ALIGN="left" | |
| 203 VALIGN="top" | |
| 204 >SDL_WM_ToggleFullScreen</TD | |
| 205 ><TD | |
| 206 WIDTH="34%" | |
| 207 ALIGN="center" | |
| 208 VALIGN="top" | |
| 209 ><A | |
| 210 HREF="wm.html" | |
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parents:
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211 ACCESSKEY="U" |
| 0 | 212 >Up</A |
| 213 ></TD | |
| 214 ><TD | |
| 215 WIDTH="33%" | |
| 216 ALIGN="right" | |
| 217 VALIGN="top" | |
| 218 >Events</TD | |
| 219 ></TR | |
| 220 ></TABLE | |
| 221 ></DIV | |
| 222 ></BODY | |
| 223 ></HTML | |
| 224 > |