Mercurial > sdl-ios-xcode
annotate docs/html/sdlpushevent.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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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_PushEvent</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_WaitEvent" | |
17 HREF="sdlwaitevent.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_SetEventFilter" | |
20 HREF="sdlseteventfilter.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="sdlwaitevent.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="sdlseteventfilter.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="SDLPUSHEVENT" | |
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74 ></A |
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75 >SDL_PushEvent</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN5536" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_PushEvent -- Pushes an event onto the event queue</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN5539" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN5540" |
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_PushEvent</B | |
108 ></CODE | |
109 >(SDL_Event *event);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN5546" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >The event queue can actually be used as a two way communication channel. Not only can events be read from the queue, but the user can also push their own events onto it. <TT | |
124 CLASS="PARAMETER" | |
125 ><I | |
126 >event</I | |
127 ></TT | |
128 > is a pointer to the event structure you wish to push onto the queue.</P | |
129 ><DIV | |
130 CLASS="NOTE" | |
131 ><BLOCKQUOTE | |
132 CLASS="NOTE" | |
133 ><P | |
134 ><B | |
135 >Note: </B | |
136 >Pushing device input events onto the queue doesn't modify the state of the device within SDL.</P | |
137 ></BLOCKQUOTE | |
138 ></DIV | |
139 ></DIV | |
140 ><DIV | |
141 CLASS="REFSECT1" | |
142 ><A | |
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143 NAME="AEN5552" |
0 | 144 ></A |
145 ><H2 | |
146 >Return Value</H2 | |
147 ><P | |
148 >Returns <SPAN | |
149 CLASS="RETURNVALUE" | |
150 >0</SPAN | |
151 > on success or <SPAN | |
152 CLASS="RETURNVALUE" | |
153 >-1</SPAN | |
154 > if the event couldn't be pushed.</P | |
155 ></DIV | |
156 ><DIV | |
157 CLASS="REFSECT1" | |
158 ><A | |
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159 NAME="AEN5557" |
0 | 160 ></A |
161 ><H2 | |
162 >Examples</H2 | |
163 ><P | |
164 >See <A | |
165 HREF="sdlevent.html" | |
166 ><SPAN | |
167 CLASS="STRUCTNAME" | |
168 >SDL_Event</SPAN | |
169 ></A | |
170 >.</P | |
171 ></DIV | |
172 ><DIV | |
173 CLASS="REFSECT1" | |
174 ><A | |
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175 NAME="AEN5562" |
0 | 176 ></A |
177 ><H2 | |
178 >See Also</H2 | |
179 ><P | |
180 ><A | |
181 HREF="sdlpollevent.html" | |
182 ><TT | |
183 CLASS="FUNCTION" | |
184 >SDL_PollEvent</TT | |
185 ></A | |
186 >, | |
187 <A | |
188 HREF="sdlpeepevents.html" | |
189 ><TT | |
190 CLASS="FUNCTION" | |
191 >SDL_PeepEvents</TT | |
192 ></A | |
193 >, | |
194 <A | |
195 HREF="sdlevent.html" | |
196 ><SPAN | |
197 CLASS="STRUCTNAME" | |
198 >SDL_Event</SPAN | |
199 ></A | |
200 ></P | |
201 ></DIV | |
202 ><DIV | |
203 CLASS="NAVFOOTER" | |
204 ><HR | |
205 ALIGN="LEFT" | |
206 WIDTH="100%"><TABLE | |
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207 SUMMARY="Footer navigation table" |
0 | 208 WIDTH="100%" |
209 BORDER="0" | |
210 CELLPADDING="0" | |
211 CELLSPACING="0" | |
212 ><TR | |
213 ><TD | |
214 WIDTH="33%" | |
215 ALIGN="left" | |
216 VALIGN="top" | |
217 ><A | |
218 HREF="sdlwaitevent.html" | |
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219 ACCESSKEY="P" |
0 | 220 >Prev</A |
221 ></TD | |
222 ><TD | |
223 WIDTH="34%" | |
224 ALIGN="center" | |
225 VALIGN="top" | |
226 ><A | |
227 HREF="index.html" | |
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228 ACCESSKEY="H" |
0 | 229 >Home</A |
230 ></TD | |
231 ><TD | |
232 WIDTH="33%" | |
233 ALIGN="right" | |
234 VALIGN="top" | |
235 ><A | |
236 HREF="sdlseteventfilter.html" | |
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237 ACCESSKEY="N" |
0 | 238 >Next</A |
239 ></TD | |
240 ></TR | |
241 ><TR | |
242 ><TD | |
243 WIDTH="33%" | |
244 ALIGN="left" | |
245 VALIGN="top" | |
246 >SDL_WaitEvent</TD | |
247 ><TD | |
248 WIDTH="34%" | |
249 ALIGN="center" | |
250 VALIGN="top" | |
251 ><A | |
252 HREF="eventfunctions.html" | |
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253 ACCESSKEY="U" |
0 | 254 >Up</A |
255 ></TD | |
256 ><TD | |
257 WIDTH="33%" | |
258 ALIGN="right" | |
259 VALIGN="top" | |
260 >SDL_SetEventFilter</TD | |
261 ></TR | |
262 ></TABLE | |
263 ></DIV | |
264 ></BODY | |
265 ></HTML | |
266 > |