Mercurial > sdl-ios-xcode
annotate docs/html/sdlglgetattribute.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> |
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date | Fri, 31 Mar 2006 06:16:20 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_GL_GetAttribute</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_GL_GetProcAddress" | |
17 HREF="sdlglgetprocaddress.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_GL_SetAttribute" | |
20 HREF="sdlglsetattribute.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="sdlglgetprocaddress.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="sdlglsetattribute.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="SDLGLGETATTRIBUTE" | |
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74 ></A |
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75 >SDL_GL_GetAttribute</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN2708" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_GL_GetAttribute -- Get the value of a special SDL/OpenGL attribute</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN2711" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN2712" |
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_GL_GetAttribute</B | |
108 ></CODE | |
109 >(SDLGLattr attr, int *value);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN2718" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Places the value of the SDL/OpenGL <A | |
124 HREF="sdlglattr.html" | |
125 >attribute</A | |
126 > <TT | |
127 CLASS="PARAMETER" | |
128 ><I | |
129 >attr</I | |
130 ></TT | |
131 > into <TT | |
132 CLASS="PARAMETER" | |
133 ><I | |
134 >value</I | |
135 ></TT | |
136 >. This is useful after a call to <A | |
137 HREF="sdlsetvideomode.html" | |
138 ><TT | |
139 CLASS="FUNCTION" | |
140 >SDL_SetVideoMode</TT | |
141 ></A | |
142 > to check whether your attributes have been <A | |
143 HREF="sdlglsetattribute.html" | |
144 >set</A | |
145 > as you expected.</P | |
146 ></DIV | |
147 ><DIV | |
148 CLASS="REFSECT1" | |
149 ><A | |
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150 NAME="AEN2727" |
0 | 151 ></A |
152 ><H2 | |
153 >Return Value</H2 | |
154 ><P | |
155 >Returns <SPAN | |
156 CLASS="RETURNVALUE" | |
157 >0</SPAN | |
158 > on success, or <SPAN | |
159 CLASS="RETURNVALUE" | |
160 >-1</SPAN | |
161 > on an error.</P | |
162 ></DIV | |
163 ><DIV | |
164 CLASS="REFSECT1" | |
165 ><A | |
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166 NAME="AEN2732" |
0 | 167 ></A |
168 ><H2 | |
169 >See Also</H2 | |
170 ><P | |
171 ><A | |
172 HREF="sdlglsetattribute.html" | |
173 ><TT | |
174 CLASS="FUNCTION" | |
175 >SDL_GL_SetAttribute</TT | |
176 ></A | |
177 >, | |
178 <A | |
179 HREF="sdlglattr.html" | |
180 >GL Attributes</A | |
181 ></P | |
182 ></DIV | |
183 ><DIV | |
184 CLASS="NAVFOOTER" | |
185 ><HR | |
186 ALIGN="LEFT" | |
187 WIDTH="100%"><TABLE | |
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188 SUMMARY="Footer navigation table" |
0 | 189 WIDTH="100%" |
190 BORDER="0" | |
191 CELLPADDING="0" | |
192 CELLSPACING="0" | |
193 ><TR | |
194 ><TD | |
195 WIDTH="33%" | |
196 ALIGN="left" | |
197 VALIGN="top" | |
198 ><A | |
199 HREF="sdlglgetprocaddress.html" | |
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200 ACCESSKEY="P" |
0 | 201 >Prev</A |
202 ></TD | |
203 ><TD | |
204 WIDTH="34%" | |
205 ALIGN="center" | |
206 VALIGN="top" | |
207 ><A | |
208 HREF="index.html" | |
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209 ACCESSKEY="H" |
0 | 210 >Home</A |
211 ></TD | |
212 ><TD | |
213 WIDTH="33%" | |
214 ALIGN="right" | |
215 VALIGN="top" | |
216 ><A | |
217 HREF="sdlglsetattribute.html" | |
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218 ACCESSKEY="N" |
0 | 219 >Next</A |
220 ></TD | |
221 ></TR | |
222 ><TR | |
223 ><TD | |
224 WIDTH="33%" | |
225 ALIGN="left" | |
226 VALIGN="top" | |
227 >SDL_GL_GetProcAddress</TD | |
228 ><TD | |
229 WIDTH="34%" | |
230 ALIGN="center" | |
231 VALIGN="top" | |
232 ><A | |
233 HREF="video.html" | |
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234 ACCESSKEY="U" |
0 | 235 >Up</A |
236 ></TD | |
237 ><TD | |
238 WIDTH="33%" | |
239 ALIGN="right" | |
240 VALIGN="top" | |
241 >SDL_GL_SetAttribute</TD | |
242 ></TR | |
243 ></TABLE | |
244 ></DIV | |
245 ></BODY | |
246 ></HTML | |
247 > |