Mercurial > sdl-ios-xcode
annotate docs/html/sdlinitsubsystem.html @ 1614:6162b8d921ce
Date: Wed, 29 Mar 2006 17:26:55 +0200 CEST
From: "Fran���is Revol"
Subject: [SDL] BeOS port fix: PrintScreen key crashing
It seems the latest SDL crashes when someone hits the PrtScrn key in
ZETA (BeOS R6), somewhere it gets a negative value as key code (or a
big unsigned maybe ?), and uses it as an index in the keysym table...
I'll investigate the cause for the negative value, but it's always
better to check for bounds correctly when indexing a table. The
attached diff fixes it.
Fran���is Revol
--
Software Architect
yellowTAB GmbH
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 31 Mar 2006 06:16:20 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_InitSubSystem</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_Init" | |
| 17 HREF="sdlinit.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_QuitSubSystem" | |
| 20 HREF="sdlquitsubsystem.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="sdlinit.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="sdlquitsubsystem.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="SDLINITSUBSYSTEM" | |
|
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74 ></A |
|
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75 >SDL_InitSubSystem</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
|
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79 NAME="AEN510" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_InitSubSystem -- Initialize subsystems</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
|
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87 NAME="AEN513" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
|
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94 NAME="AEN514" |
| 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_InitSubSystem</B | |
| 108 ></CODE | |
| 109 >(Uint32 flags);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
|
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118 NAME="AEN520" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >After SDL has been initialized with <A | |
| 124 HREF="sdlinit.html" | |
| 125 ><TT | |
| 126 CLASS="FUNCTION" | |
| 127 >SDL_Init</TT | |
| 128 ></A | |
| 129 > you may initialize uninitialized subsystems with <TT | |
| 130 CLASS="FUNCTION" | |
| 131 >SDL_InitSubSystem</TT | |
| 132 >. The <TT | |
| 133 CLASS="PARAMETER" | |
| 134 ><I | |
| 135 >flags</I | |
| 136 ></TT | |
| 137 > parameter is the same as that used in <A | |
| 138 HREF="sdlinit.html" | |
| 139 ><TT | |
| 140 CLASS="FUNCTION" | |
| 141 >SDL_Init</TT | |
| 142 ></A | |
| 143 >.</P | |
| 144 ></DIV | |
| 145 ><DIV | |
| 146 CLASS="REFSECT1" | |
| 147 ><A | |
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148 NAME="AEN529" |
| 0 | 149 ></A |
| 150 ><H2 | |
| 151 >Examples</H2 | |
| 152 ><PRE | |
| 153 CLASS="PROGRAMLISTING" | |
| 154 >/* Seperating Joystick and Video initialization. */ | |
| 155 SDL_Init(SDL_INIT_VIDEO); | |
| 156 . | |
| 157 . | |
| 158 SDL_SetVideoMode(640, 480, 16, SDL_DOUBLEBUF|SDL_FULLSCREEN); | |
| 159 . | |
| 160 /* Do Some Video stuff */ | |
| 161 . | |
| 162 . | |
| 163 /* Initialize the joystick subsystem */ | |
| 164 SDL_InitSubSystem(SDL_INIT_JOYSTICK); | |
| 165 | |
| 166 /* Do some stuff with video and joystick */ | |
| 167 . | |
| 168 . | |
| 169 . | |
| 170 /* Shut them both down */ | |
| 171 SDL_Quit();</PRE | |
| 172 ></DIV | |
| 173 ><DIV | |
| 174 CLASS="REFSECT1" | |
| 175 ><A | |
|
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176 NAME="AEN532" |
| 0 | 177 ></A |
| 178 ><H2 | |
| 179 >Return Value</H2 | |
| 180 ><P | |
| 181 >Returns <SPAN | |
| 182 CLASS="RETURNVALUE" | |
| 183 >-1</SPAN | |
| 184 > on an error or <SPAN | |
| 185 CLASS="RETURNVALUE" | |
| 186 >0</SPAN | |
| 187 > on success.</P | |
| 188 ></DIV | |
| 189 ><DIV | |
| 190 CLASS="REFSECT1" | |
| 191 ><A | |
|
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192 NAME="AEN537" |
| 0 | 193 ></A |
| 194 ><H2 | |
| 195 >See Also</H2 | |
| 196 ><P | |
| 197 ><A | |
| 198 HREF="sdlinit.html" | |
| 199 ><TT | |
| 200 CLASS="FUNCTION" | |
| 201 >SDL_Init</TT | |
| 202 ></A | |
| 203 >, | |
| 204 <A | |
| 205 HREF="sdlquit.html" | |
| 206 ><TT | |
| 207 CLASS="FUNCTION" | |
| 208 >SDL_Quit</TT | |
| 209 ></A | |
| 210 >, | |
| 211 <A | |
| 212 HREF="sdlquitsubsystem.html" | |
| 213 ><TT | |
| 214 CLASS="FUNCTION" | |
| 215 >SDL_QuitSubSystem</TT | |
| 216 ></A | |
| 217 ></P | |
| 218 ></DIV | |
| 219 ><DIV | |
| 220 CLASS="NAVFOOTER" | |
| 221 ><HR | |
| 222 ALIGN="LEFT" | |
| 223 WIDTH="100%"><TABLE | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
224 SUMMARY="Footer navigation table" |
| 0 | 225 WIDTH="100%" |
| 226 BORDER="0" | |
| 227 CELLPADDING="0" | |
| 228 CELLSPACING="0" | |
| 229 ><TR | |
| 230 ><TD | |
| 231 WIDTH="33%" | |
| 232 ALIGN="left" | |
| 233 VALIGN="top" | |
| 234 ><A | |
| 235 HREF="sdlinit.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
236 ACCESSKEY="P" |
| 0 | 237 >Prev</A |
| 238 ></TD | |
| 239 ><TD | |
| 240 WIDTH="34%" | |
| 241 ALIGN="center" | |
| 242 VALIGN="top" | |
| 243 ><A | |
| 244 HREF="index.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
245 ACCESSKEY="H" |
| 0 | 246 >Home</A |
| 247 ></TD | |
| 248 ><TD | |
| 249 WIDTH="33%" | |
| 250 ALIGN="right" | |
| 251 VALIGN="top" | |
| 252 ><A | |
| 253 HREF="sdlquitsubsystem.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
254 ACCESSKEY="N" |
| 0 | 255 >Next</A |
| 256 ></TD | |
| 257 ></TR | |
| 258 ><TR | |
| 259 ><TD | |
| 260 WIDTH="33%" | |
| 261 ALIGN="left" | |
| 262 VALIGN="top" | |
| 263 >SDL_Init</TD | |
| 264 ><TD | |
| 265 WIDTH="34%" | |
| 266 ALIGN="center" | |
| 267 VALIGN="top" | |
| 268 ><A | |
| 269 HREF="general.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
270 ACCESSKEY="U" |
| 0 | 271 >Up</A |
| 272 ></TD | |
| 273 ><TD | |
| 274 WIDTH="33%" | |
| 275 ALIGN="right" | |
| 276 VALIGN="top" | |
| 277 >SDL_QuitSubSystem</TD | |
| 278 ></TR | |
| 279 ></TABLE | |
| 280 ></DIV | |
| 281 ></BODY | |
| 282 ></HTML | |
| 283 > |