Mercurial > sdl-ios-xcode
annotate docs/html/sdlinit.html @ 1282:217f5d5a49e5
Date: Sat, 15 Jan 2005 02:01:51 +0000 (UTC)
From: jimrandomh
Subject: [SDL] Re: Modifier keys pressed during initialization stick
I wrote a simple test program which initializes SDL, prints the SDL
version number, then prints any keydown and keyup events with their
modifiers. (Source code below). Compilation was done using Visual
Studio 6, release mode.
My test sequence was:
Start a command prompt. Type the name of the test program.
shift down
enter down (program starts)
Wait for window to appear
enter up
shift up
spacebar down
spacebar up
Under Windows 98, the output was correct:
SDL 1.2.8
left shift down
shift-return down
shift-return up
left shift up
space down
space up
Under Windows 2000 and under Windows XP, the output was:
SDL 1.2.8
shift-space down
shift-space up
Since shift was not held at the time space was pressed, this is
incorrect. Similar results were observed with launching in different
ways (including double-clicking in Windows Explorer), so it does not
depend on the launching terminal.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 29 Jan 2006 07:57:13 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_Init</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="General" | |
14 HREF="general.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="General" | |
17 HREF="general.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_InitSubSystem" | |
20 HREF="sdlinitsubsystem.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="general.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="sdlinitsubsystem.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="SDLINIT" | |
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74 ></A |
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75 >SDL_Init</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN440" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_Init -- Initializes SDL</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN443" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN444" |
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_Init</B | |
108 ></CODE | |
109 >(Uint32 flags);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN450" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Initializes SDL. This should be called before all other SDL functions. The <TT | |
124 CLASS="PARAMETER" | |
125 ><I | |
126 >flags</I | |
127 ></TT | |
128 > parameter specifies what part(s) of SDL to initialize.</P | |
129 ><DIV | |
130 CLASS="INFORMALTABLE" | |
131 ><A | |
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132 NAME="AEN454" |
0 | 133 ></A |
134 ><P | |
135 ></P | |
136 ><TABLE | |
137 BORDER="1" | |
138 CLASS="CALSTABLE" | |
139 ><TBODY | |
140 ><TR | |
141 ><TD | |
142 ALIGN="LEFT" | |
143 VALIGN="TOP" | |
144 ><TT | |
145 CLASS="LITERAL" | |
146 >SDL_INIT_TIMER</TT | |
147 ></TD | |
148 ><TD | |
149 ALIGN="LEFT" | |
150 VALIGN="TOP" | |
151 >Initializes the <A | |
152 HREF="time.html" | |
153 >timer</A | |
154 > subsystem.</TD | |
155 ></TR | |
156 ><TR | |
157 ><TD | |
158 ALIGN="LEFT" | |
159 VALIGN="TOP" | |
160 ><TT | |
161 CLASS="LITERAL" | |
162 >SDL_INIT_AUDIO</TT | |
163 ></TD | |
164 ><TD | |
165 ALIGN="LEFT" | |
166 VALIGN="TOP" | |
167 >Initializes the <A | |
168 HREF="audio.html" | |
169 >audio</A | |
170 > subsystem.</TD | |
171 ></TR | |
172 ><TR | |
173 ><TD | |
174 ALIGN="LEFT" | |
175 VALIGN="TOP" | |
176 ><TT | |
177 CLASS="LITERAL" | |
178 >SDL_INIT_VIDEO</TT | |
179 ></TD | |
180 ><TD | |
181 ALIGN="LEFT" | |
182 VALIGN="TOP" | |
183 >Initializes the <A | |
184 HREF="video.html" | |
185 >video</A | |
186 > subsystem.</TD | |
187 ></TR | |
188 ><TR | |
189 ><TD | |
190 ALIGN="LEFT" | |
191 VALIGN="TOP" | |
192 ><TT | |
193 CLASS="LITERAL" | |
194 >SDL_INIT_CDROM</TT | |
195 ></TD | |
196 ><TD | |
197 ALIGN="LEFT" | |
198 VALIGN="TOP" | |
199 >Initializes the <A | |
200 HREF="cdrom.html" | |
201 >cdrom</A | |
202 > subsystem.</TD | |
203 ></TR | |
204 ><TR | |
205 ><TD | |
206 ALIGN="LEFT" | |
207 VALIGN="TOP" | |
208 ><TT | |
209 CLASS="LITERAL" | |
210 >SDL_INIT_JOYSTICK</TT | |
211 ></TD | |
212 ><TD | |
213 ALIGN="LEFT" | |
214 VALIGN="TOP" | |
215 >Initializes the <A | |
216 HREF="joystick.html" | |
217 >joystick</A | |
218 > subsystem.</TD | |
219 ></TR | |
220 ><TR | |
221 ><TD | |
222 ALIGN="LEFT" | |
223 VALIGN="TOP" | |
224 ><TT | |
225 CLASS="LITERAL" | |
226 >SDL_INIT_EVERYTHING</TT | |
227 ></TD | |
228 ><TD | |
229 ALIGN="LEFT" | |
230 VALIGN="TOP" | |
231 >Initialize all of the above.</TD | |
232 ></TR | |
233 ><TR | |
234 ><TD | |
235 ALIGN="LEFT" | |
236 VALIGN="TOP" | |
237 ><TT | |
238 CLASS="LITERAL" | |
239 >SDL_INIT_NOPARACHUTE</TT | |
240 ></TD | |
241 ><TD | |
242 ALIGN="LEFT" | |
243 VALIGN="TOP" | |
244 >Prevents SDL from catching fatal signals.</TD | |
245 ></TR | |
246 ><TR | |
247 ><TD | |
248 ALIGN="LEFT" | |
249 VALIGN="TOP" | |
250 ><TT | |
251 CLASS="LITERAL" | |
252 >SDL_INIT_EVENTTHREAD</TT | |
253 ></TD | |
254 ><TD | |
255 ALIGN="LEFT" | |
256 VALIGN="TOP" | |
257 > </TD | |
258 ></TR | |
259 ></TBODY | |
260 ></TABLE | |
261 ><P | |
262 ></P | |
263 ></DIV | |
264 ></DIV | |
265 ><DIV | |
266 CLASS="REFSECT1" | |
267 ><A | |
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268 NAME="AEN494" |
0 | 269 ></A |
270 ><H2 | |
271 >Return Value</H2 | |
272 ><P | |
273 >Returns <SPAN | |
274 CLASS="RETURNVALUE" | |
275 >-1</SPAN | |
276 > on an error or <SPAN | |
277 CLASS="RETURNVALUE" | |
278 >0</SPAN | |
279 > on success.</P | |
280 ></DIV | |
281 ><DIV | |
282 CLASS="REFSECT1" | |
283 ><A | |
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284 NAME="AEN499" |
0 | 285 ></A |
286 ><H2 | |
287 >See Also</H2 | |
288 ><P | |
289 ><A | |
290 HREF="sdlquit.html" | |
291 ><TT | |
292 CLASS="FUNCTION" | |
293 >SDL_Quit</TT | |
294 ></A | |
295 >, | |
296 <A | |
297 HREF="sdlinitsubsystem.html" | |
298 ><TT | |
299 CLASS="FUNCTION" | |
300 >SDL_InitSubSystem</TT | |
301 ></A | |
302 ></P | |
303 ></DIV | |
304 ><DIV | |
305 CLASS="NAVFOOTER" | |
306 ><HR | |
307 ALIGN="LEFT" | |
308 WIDTH="100%"><TABLE | |
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309 SUMMARY="Footer navigation table" |
0 | 310 WIDTH="100%" |
311 BORDER="0" | |
312 CELLPADDING="0" | |
313 CELLSPACING="0" | |
314 ><TR | |
315 ><TD | |
316 WIDTH="33%" | |
317 ALIGN="left" | |
318 VALIGN="top" | |
319 ><A | |
320 HREF="general.html" | |
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321 ACCESSKEY="P" |
0 | 322 >Prev</A |
323 ></TD | |
324 ><TD | |
325 WIDTH="34%" | |
326 ALIGN="center" | |
327 VALIGN="top" | |
328 ><A | |
329 HREF="index.html" | |
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330 ACCESSKEY="H" |
0 | 331 >Home</A |
332 ></TD | |
333 ><TD | |
334 WIDTH="33%" | |
335 ALIGN="right" | |
336 VALIGN="top" | |
337 ><A | |
338 HREF="sdlinitsubsystem.html" | |
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339 ACCESSKEY="N" |
0 | 340 >Next</A |
341 ></TD | |
342 ></TR | |
343 ><TR | |
344 ><TD | |
345 WIDTH="33%" | |
346 ALIGN="left" | |
347 VALIGN="top" | |
348 >General</TD | |
349 ><TD | |
350 WIDTH="34%" | |
351 ALIGN="center" | |
352 VALIGN="top" | |
353 ><A | |
354 HREF="general.html" | |
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355 ACCESSKEY="U" |
0 | 356 >Up</A |
357 ></TD | |
358 ><TD | |
359 WIDTH="33%" | |
360 ALIGN="right" | |
361 VALIGN="top" | |
362 >SDL_InitSubSystem</TD | |
363 ></TR | |
364 ></TABLE | |
365 ></DIV | |
366 ></BODY | |
367 ></HTML | |
368 > |