Mercurial > sdl-ios-xcode
annotate docs/html/sdlpollevent.html @ 172:37e3ca9254c7
Date: Sat, 8 Sep 2001 04:42:23 +0200
From: Max Horn <max@quendi.de>
Subject: SDL/OSX: Joystick; Better key handling
I just finished implementing improved keyhandling for OS X (in fact
the code should be easily ported to the "normal" MacOS part of SDL, I
just had no chance yet). Works like this:
First init the mapping table statically like before. Them, it queries
the OS for the "official" key table, then iterates over all 127
scancode and gets the associates ascii code. It ignores everythng
below 32 (has to, as it would lead to many problems if we did not...
e.g. both ESC and NUM LOCk produce an ascii code 27 on my keyboard),
and all stuff above 127 is mapped to SDLK_WORLD_* simply in the order
it is encountered.
In addition, caps lock is now working, too.
The code work flawless for me, but since I only have one keyboard, I
may have not encountered some serious problem... but I am pretty
confident that it is better than the old code in most cases.
The joystick driver works fine for me, too. I think it can be added
to CVS already. It would simply be helpful if more people would test
it. Hm, I wonder if Maelstrom or GLTron has Joystick support? That
would be a wonderful test application :)
I also took the liberty of modifying some text files like BUGS,
README.CVS, README.MacOSX (which now contains the OS X docs I long
promised)
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 11 Sep 2001 19:00:18 +0000 |
parents | 55f1f1b3e27d |
children | e5bc29de3f0a |
rev | line source |
---|---|
0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_PollEvent</TITLE | |
5 ><META | |
6 NAME="GENERATOR" | |
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
7 CONTENT="Modular DocBook HTML Stylesheet Version 1.64 |
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_PeepEvents" | |
17 HREF="sdlpeepevents.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_WaitEvent" | |
20 HREF="sdlwaitevent.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 | |
31 WIDTH="100%" | |
32 BORDER="0" | |
33 CELLPADDING="0" | |
34 CELLSPACING="0" | |
35 ><TR | |
36 ><TH | |
37 COLSPAN="3" | |
38 ALIGN="center" | |
39 >SDL Library Documentation</TH | |
40 ></TR | |
41 ><TR | |
42 ><TD | |
43 WIDTH="10%" | |
44 ALIGN="left" | |
45 VALIGN="bottom" | |
46 ><A | |
47 HREF="sdlpeepevents.html" | |
48 >Prev</A | |
49 ></TD | |
50 ><TD | |
51 WIDTH="80%" | |
52 ALIGN="center" | |
53 VALIGN="bottom" | |
54 ></TD | |
55 ><TD | |
56 WIDTH="10%" | |
57 ALIGN="right" | |
58 VALIGN="bottom" | |
59 ><A | |
60 HREF="sdlwaitevent.html" | |
61 >Next</A | |
62 ></TD | |
63 ></TR | |
64 ></TABLE | |
65 ><HR | |
66 ALIGN="LEFT" | |
67 WIDTH="100%"></DIV | |
68 ><H1 | |
69 ><A | |
70 NAME="SDLPOLLEVENT" | |
71 >SDL_PollEvent</A | |
72 ></H1 | |
73 ><DIV | |
74 CLASS="REFNAMEDIV" | |
75 ><A | |
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
76 NAME="AEN4929" |
0 | 77 ></A |
78 ><H2 | |
79 >Name</H2 | |
80 >SDL_PollEvent -- Polls for currently pending events.</DIV | |
81 ><DIV | |
82 CLASS="REFSYNOPSISDIV" | |
83 ><A | |
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
84 NAME="AEN4932" |
0 | 85 ></A |
86 ><H2 | |
87 >Synopsis</H2 | |
88 ><DIV | |
89 CLASS="FUNCSYNOPSIS" | |
90 ><A | |
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
91 NAME="AEN4933" |
0 | 92 ></A |
93 ><P | |
94 ></P | |
95 ><PRE | |
96 CLASS="FUNCSYNOPSISINFO" | |
97 >#include "SDL.h"</PRE | |
98 ><P | |
99 ><CODE | |
100 ><CODE | |
101 CLASS="FUNCDEF" | |
102 >int <B | |
103 CLASS="FSFUNC" | |
104 >SDL_PollEvent</B | |
105 ></CODE | |
106 >(SDL_Event *event);</CODE | |
107 ></P | |
108 ><P | |
109 ></P | |
110 ></DIV | |
111 ></DIV | |
112 ><DIV | |
113 CLASS="REFSECT1" | |
114 ><A | |
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
115 NAME="AEN4939" |
0 | 116 ></A |
117 ><H2 | |
118 >Description</H2 | |
119 ><P | |
120 >Polls for currently pending events, and returns <SPAN | |
121 CLASS="RETURNVALUE" | |
122 >1</SPAN | |
123 > | |
124 if there are any pending events, or <SPAN | |
125 CLASS="RETURNVALUE" | |
126 >0</SPAN | |
127 > if there | |
128 are none available. </P | |
129 ><P | |
130 >If <TT | |
131 CLASS="PARAMETER" | |
132 ><I | |
133 >event</I | |
134 ></TT | |
135 > is not <TT | |
136 CLASS="LITERAL" | |
137 >NULL</TT | |
138 >, the next | |
139 event is removed from the queue and stored in that area.</P | |
140 ></DIV | |
141 ><DIV | |
142 CLASS="REFSECT1" | |
143 ><A | |
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
144 NAME="AEN4947" |
0 | 145 ></A |
146 ><H2 | |
147 >Examples</H2 | |
148 ><P | |
149 ><PRE | |
150 CLASS="PROGRAMLISTING" | |
151 >SDL_Event event; /* Event structure */ | |
152 | |
153 . | |
154 . | |
155 . | |
156 /* Check for events */ | |
157 while(SDL_PollEvent(&event)){ /* Loop until there are no events left on the queue */ | |
158 switch(event.type){ /* Process the appropiate event type */ | |
159 case SDL_KEYDOWN: /* Handle a KEYDOWN event */ | |
160 printf("Oh! Key press\n"); | |
161 break; | |
162 case SDL_MOUSEMOTION: | |
163 . | |
164 . | |
165 . | |
166 default: /* Report an unhandled event */ | |
167 printf("I don't know what this event is!\n"); | |
168 } | |
169 }</PRE | |
170 ></P | |
171 ></DIV | |
172 ><DIV | |
173 CLASS="REFSECT1" | |
174 ><A | |
55
55f1f1b3e27d
Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
175 NAME="AEN4951" |
0 | 176 ></A |
177 ><H2 | |
178 >See Also</H2 | |
179 ><P | |
180 ><A | |
181 HREF="sdlevent.html" | |
182 ><SPAN | |
183 CLASS="STRUCTNAME" | |
184 >SDL_Event</SPAN | |
185 ></A | |
186 >, | |
187 <A | |
188 HREF="sdlwaitevent.html" | |
189 ><TT | |
190 CLASS="FUNCTION" | |
191 >SDL_WaitEvent</TT | |
192 ></A | |
193 >, | |
194 <A | |
195 HREF="sdlpeepevents.html" | |
196 ><TT | |
197 CLASS="FUNCTION" | |
198 >SDL_PeepEvents</TT | |
199 ></A | |
200 ></P | |
201 ></DIV | |
202 ><DIV | |
203 CLASS="NAVFOOTER" | |
204 ><HR | |
205 ALIGN="LEFT" | |
206 WIDTH="100%"><TABLE | |
207 WIDTH="100%" | |
208 BORDER="0" | |
209 CELLPADDING="0" | |
210 CELLSPACING="0" | |
211 ><TR | |
212 ><TD | |
213 WIDTH="33%" | |
214 ALIGN="left" | |
215 VALIGN="top" | |
216 ><A | |
217 HREF="sdlpeepevents.html" | |
218 >Prev</A | |
219 ></TD | |
220 ><TD | |
221 WIDTH="34%" | |
222 ALIGN="center" | |
223 VALIGN="top" | |
224 ><A | |
225 HREF="index.html" | |
226 >Home</A | |
227 ></TD | |
228 ><TD | |
229 WIDTH="33%" | |
230 ALIGN="right" | |
231 VALIGN="top" | |
232 ><A | |
233 HREF="sdlwaitevent.html" | |
234 >Next</A | |
235 ></TD | |
236 ></TR | |
237 ><TR | |
238 ><TD | |
239 WIDTH="33%" | |
240 ALIGN="left" | |
241 VALIGN="top" | |
242 >SDL_PeepEvents</TD | |
243 ><TD | |
244 WIDTH="34%" | |
245 ALIGN="center" | |
246 VALIGN="top" | |
247 ><A | |
248 HREF="eventfunctions.html" | |
249 >Up</A | |
250 ></TD | |
251 ><TD | |
252 WIDTH="33%" | |
253 ALIGN="right" | |
254 VALIGN="top" | |
255 >SDL_WaitEvent</TD | |
256 ></TR | |
257 ></TABLE | |
258 ></DIV | |
259 ></BODY | |
260 ></HTML | |
261 > |