Mercurial > sdl-ios-xcode
annotate docs/html/sdlrect.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_Rect</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="Video" | |
| 14 HREF="video.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_GLattr" | |
| 17 HREF="sdlglattr.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_Color" | |
| 20 HREF="sdlcolor.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="sdlglattr.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="sdlcolor.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="SDLRECT" | |
|
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74 ></A |
|
355632dca928
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75 >SDL_Rect</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN3046" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_Rect -- Defines a rectangular area</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSECT1" | |
| 86 ><A | |
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87 NAME="AEN3049" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Structure Definition</H2 | |
| 91 ><PRE | |
| 92 CLASS="PROGRAMLISTING" | |
| 93 >typedef struct{ | |
| 94 Sint16 x, y; | |
| 95 Uint16 w, h; | |
| 96 } SDL_Rect;</PRE | |
| 97 ></DIV | |
| 98 ><DIV | |
| 99 CLASS="REFSECT1" | |
| 100 ><A | |
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101 NAME="AEN3052" |
| 0 | 102 ></A |
| 103 ><H2 | |
| 104 >Structure Data</H2 | |
| 105 ><DIV | |
| 106 CLASS="INFORMALTABLE" | |
| 107 ><A | |
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parents:
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108 NAME="AEN3054" |
| 0 | 109 ></A |
| 110 ><P | |
| 111 ></P | |
| 112 ><TABLE | |
| 113 BORDER="0" | |
| 114 CLASS="CALSTABLE" | |
| 115 ><TBODY | |
| 116 ><TR | |
| 117 ><TD | |
| 118 ALIGN="LEFT" | |
| 119 VALIGN="TOP" | |
| 120 ><TT | |
| 121 CLASS="STRUCTFIELD" | |
| 122 ><I | |
| 123 >x, y</I | |
| 124 ></TT | |
| 125 ></TD | |
| 126 ><TD | |
| 127 ALIGN="LEFT" | |
| 128 VALIGN="TOP" | |
| 129 >Position of the upper-left corner of the rectangle</TD | |
| 130 ></TR | |
| 131 ><TR | |
| 132 ><TD | |
| 133 ALIGN="LEFT" | |
| 134 VALIGN="TOP" | |
| 135 ><TT | |
| 136 CLASS="STRUCTFIELD" | |
| 137 ><I | |
| 138 >w, h</I | |
| 139 ></TT | |
| 140 ></TD | |
| 141 ><TD | |
| 142 ALIGN="LEFT" | |
| 143 VALIGN="TOP" | |
| 144 >The width and height of the rectangle</TD | |
| 145 ></TR | |
| 146 ></TBODY | |
| 147 ></TABLE | |
| 148 ><P | |
| 149 ></P | |
| 150 ></DIV | |
| 151 ></DIV | |
| 152 ><DIV | |
| 153 CLASS="REFSECT1" | |
| 154 ><A | |
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355632dca928
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parents:
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155 NAME="AEN3065" |
| 0 | 156 ></A |
| 157 ><H2 | |
| 158 >Description</H2 | |
| 159 ><P | |
| 160 >A <SPAN | |
| 161 CLASS="STRUCTNAME" | |
| 162 >SDL_Rect</SPAN | |
| 163 > defines a rectangular area of pixels. It is used by <A | |
| 164 HREF="sdlblitsurface.html" | |
| 165 ><TT | |
| 166 CLASS="FUNCTION" | |
| 167 >SDL_BlitSurface</TT | |
| 168 ></A | |
| 169 > to define blitting regions and by several other video functions.</P | |
| 170 ></DIV | |
| 171 ><DIV | |
| 172 CLASS="REFSECT1" | |
| 173 ><A | |
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355632dca928
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parents:
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174 NAME="AEN3071" |
| 0 | 175 ></A |
| 176 ><H2 | |
| 177 >See Also</H2 | |
| 178 ><P | |
| 179 ><A | |
| 180 HREF="sdlblitsurface.html" | |
| 181 ><TT | |
| 182 CLASS="FUNCTION" | |
| 183 >SDL_BlitSurface</TT | |
| 184 ></A | |
| 185 >, | |
| 186 <A | |
| 187 HREF="sdlupdaterect.html" | |
| 188 ><TT | |
| 189 CLASS="FUNCTION" | |
| 190 >SDL_UpdateRect</TT | |
| 191 ></A | |
| 192 ></P | |
| 193 ></DIV | |
| 194 ><DIV | |
| 195 CLASS="NAVFOOTER" | |
| 196 ><HR | |
| 197 ALIGN="LEFT" | |
| 198 WIDTH="100%"><TABLE | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
199 SUMMARY="Footer navigation table" |
| 0 | 200 WIDTH="100%" |
| 201 BORDER="0" | |
| 202 CELLPADDING="0" | |
| 203 CELLSPACING="0" | |
| 204 ><TR | |
| 205 ><TD | |
| 206 WIDTH="33%" | |
| 207 ALIGN="left" | |
| 208 VALIGN="top" | |
| 209 ><A | |
| 210 HREF="sdlglattr.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
211 ACCESSKEY="P" |
| 0 | 212 >Prev</A |
| 213 ></TD | |
| 214 ><TD | |
| 215 WIDTH="34%" | |
| 216 ALIGN="center" | |
| 217 VALIGN="top" | |
| 218 ><A | |
| 219 HREF="index.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
220 ACCESSKEY="H" |
| 0 | 221 >Home</A |
| 222 ></TD | |
| 223 ><TD | |
| 224 WIDTH="33%" | |
| 225 ALIGN="right" | |
| 226 VALIGN="top" | |
| 227 ><A | |
| 228 HREF="sdlcolor.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
229 ACCESSKEY="N" |
| 0 | 230 >Next</A |
| 231 ></TD | |
| 232 ></TR | |
| 233 ><TR | |
| 234 ><TD | |
| 235 WIDTH="33%" | |
| 236 ALIGN="left" | |
| 237 VALIGN="top" | |
| 238 >SDL_GLattr</TD | |
| 239 ><TD | |
| 240 WIDTH="34%" | |
| 241 ALIGN="center" | |
| 242 VALIGN="top" | |
| 243 ><A | |
| 244 HREF="video.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
245 ACCESSKEY="U" |
| 0 | 246 >Up</A |
| 247 ></TD | |
| 248 ><TD | |
| 249 WIDTH="33%" | |
| 250 ALIGN="right" | |
| 251 VALIGN="top" | |
| 252 >SDL_Color</TD | |
| 253 ></TR | |
| 254 ></TABLE | |
| 255 ></DIV | |
| 256 ></BODY | |
| 257 ></HTML | |
| 258 > |