Mercurial > sdl-ios-xcode
annotate docs/html/sdlpollevent.html @ 3097:0d12e8f1de3c
Date: Thu, 05 Feb 2009 18:07:35 +0100
From: Stefan Klug
Subject: [SDL] SDL 1.3 WinCE backend
as promised, I've started to work on the WinCE backend of SDL 1.3
I've modified the win32 video backend and the gdi renderer, to work
properly in WinCE.
The results till now are great, but there is still some work to do.
Attached are two patches with my changes.
I would be happy if someone could review and propably commit them.
The first one (configure.in.patch) should be straight forward without
any side effects.
The second one does the necessary changes to the win32 backend. I was
really unhappy to start slicing this shiny new backend with
#ifdef/#endif but I saw no other option.
The most problematic issues are:
- WinCe has no GetDIBits, so its practically impossible to fill a
BITMAPINFO with correct values. I therefore removed the bmi member from
the GDI_RenderData in SDL_gdirender.c to prevent usage of a not or not
properly initialized bmi.
- In SDL_win32window.c I exchanged some ASCII function by their general
counterparts, (In CE only the Unicode versions are available). I don't
know if this has a negative effect when running in win32
Cheers
Stefan
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 23 Mar 2009 05:35:21 +0000 |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_PollEvent</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_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 | |
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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="sdlpeepevents.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="sdlwaitevent.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="SDLPOLLEVENT" | |
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74 ></A |
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75 >SDL_PollEvent</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN5472" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_PollEvent -- Polls for currently pending events.</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN5475" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN5476" |
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_PollEvent</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="AEN5482" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Polls for currently pending events, and returns <SPAN | |
124 CLASS="RETURNVALUE" | |
125 >1</SPAN | |
126 > | |
127 if there are any pending events, or <SPAN | |
128 CLASS="RETURNVALUE" | |
129 >0</SPAN | |
130 > if there | |
131 are none available. </P | |
132 ><P | |
133 >If <TT | |
134 CLASS="PARAMETER" | |
135 ><I | |
136 >event</I | |
137 ></TT | |
138 > is not <TT | |
139 CLASS="LITERAL" | |
140 >NULL</TT | |
141 >, the next | |
142 event is removed from the queue and stored in that area.</P | |
143 ></DIV | |
144 ><DIV | |
145 CLASS="REFSECT1" | |
146 ><A | |
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147 NAME="AEN5490" |
0 | 148 ></A |
149 ><H2 | |
150 >Examples</H2 | |
151 ><P | |
152 ><PRE | |
153 CLASS="PROGRAMLISTING" | |
154 >SDL_Event event; /* Event structure */ | |
155 | |
156 . | |
157 . | |
158 . | |
159 /* Check for events */ | |
160 while(SDL_PollEvent(&event)){ /* Loop until there are no events left on the queue */ | |
161 switch(event.type){ /* Process the appropiate event type */ | |
162 case SDL_KEYDOWN: /* Handle a KEYDOWN event */ | |
163 printf("Oh! Key press\n"); | |
164 break; | |
165 case SDL_MOUSEMOTION: | |
166 . | |
167 . | |
168 . | |
169 default: /* Report an unhandled event */ | |
170 printf("I don't know what this event is!\n"); | |
171 } | |
172 }</PRE | |
173 ></P | |
174 ></DIV | |
175 ><DIV | |
176 CLASS="REFSECT1" | |
177 ><A | |
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178 NAME="AEN5494" |
0 | 179 ></A |
180 ><H2 | |
181 >See Also</H2 | |
182 ><P | |
183 ><A | |
184 HREF="sdlevent.html" | |
185 ><SPAN | |
186 CLASS="STRUCTNAME" | |
187 >SDL_Event</SPAN | |
188 ></A | |
189 >, | |
190 <A | |
191 HREF="sdlwaitevent.html" | |
192 ><TT | |
193 CLASS="FUNCTION" | |
194 >SDL_WaitEvent</TT | |
195 ></A | |
196 >, | |
197 <A | |
198 HREF="sdlpeepevents.html" | |
199 ><TT | |
200 CLASS="FUNCTION" | |
201 >SDL_PeepEvents</TT | |
202 ></A | |
203 ></P | |
204 ></DIV | |
205 ><DIV | |
206 CLASS="NAVFOOTER" | |
207 ><HR | |
208 ALIGN="LEFT" | |
209 WIDTH="100%"><TABLE | |
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210 SUMMARY="Footer navigation table" |
0 | 211 WIDTH="100%" |
212 BORDER="0" | |
213 CELLPADDING="0" | |
214 CELLSPACING="0" | |
215 ><TR | |
216 ><TD | |
217 WIDTH="33%" | |
218 ALIGN="left" | |
219 VALIGN="top" | |
220 ><A | |
221 HREF="sdlpeepevents.html" | |
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222 ACCESSKEY="P" |
0 | 223 >Prev</A |
224 ></TD | |
225 ><TD | |
226 WIDTH="34%" | |
227 ALIGN="center" | |
228 VALIGN="top" | |
229 ><A | |
230 HREF="index.html" | |
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231 ACCESSKEY="H" |
0 | 232 >Home</A |
233 ></TD | |
234 ><TD | |
235 WIDTH="33%" | |
236 ALIGN="right" | |
237 VALIGN="top" | |
238 ><A | |
239 HREF="sdlwaitevent.html" | |
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240 ACCESSKEY="N" |
0 | 241 >Next</A |
242 ></TD | |
243 ></TR | |
244 ><TR | |
245 ><TD | |
246 WIDTH="33%" | |
247 ALIGN="left" | |
248 VALIGN="top" | |
249 >SDL_PeepEvents</TD | |
250 ><TD | |
251 WIDTH="34%" | |
252 ALIGN="center" | |
253 VALIGN="top" | |
254 ><A | |
255 HREF="eventfunctions.html" | |
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256 ACCESSKEY="U" |
0 | 257 >Up</A |
258 ></TD | |
259 ><TD | |
260 WIDTH="33%" | |
261 ALIGN="right" | |
262 VALIGN="top" | |
263 >SDL_WaitEvent</TD | |
264 ></TR | |
265 ></TABLE | |
266 ></DIV | |
267 ></BODY | |
268 ></HTML | |
269 > |