Mercurial > sdl-ios-xcode
annotate docs/html/sdlloadwav.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 |
children |
rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_LoadWAV</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="Audio" | |
14 HREF="audio.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_GetAudioStatus" | |
17 HREF="sdlgetaudiostatus.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_FreeWAV" | |
20 HREF="sdlfreewav.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="sdlgetaudiostatus.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="sdlfreewav.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="SDLLOADWAV" | |
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74 ></A |
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75 >SDL_LoadWAV</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN6816" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_LoadWAV -- Load a WAVE file</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN6819" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN6820" |
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 >SDL_AudioSpec *<B | |
106 CLASS="FSFUNC" | |
107 >SDL_LoadWAV</B | |
108 ></CODE | |
109 >(const char *file, SDL_AudioSpec *spec, Uint8 **audio_buf, Uint32 *audio_len);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN6826" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 ><TT | |
124 CLASS="FUNCTION" | |
125 >SDL_LoadWAV</TT | |
126 > | |
127 This function loads a WAVE <TT | |
128 CLASS="PARAMETER" | |
129 ><I | |
130 >file</I | |
131 ></TT | |
132 > into memory.</P | |
133 ><P | |
134 >If this function succeeds, it returns the given | |
135 <A | |
136 HREF="sdlaudiospec.html" | |
137 ><TT | |
138 CLASS="FUNCTION" | |
139 >SDL_AudioSpec</TT | |
140 ></A | |
141 >, | |
142 filled with the audio data format of the wave data, and sets | |
143 <TT | |
144 CLASS="PARAMETER" | |
145 ><I | |
146 >audio_buf</I | |
147 ></TT | |
148 > to a <TT | |
149 CLASS="FUNCTION" | |
150 >malloc</TT | |
151 >'d | |
152 buffer containing the audio data, and sets <TT | |
153 CLASS="PARAMETER" | |
154 ><I | |
155 >audio_len</I | |
156 ></TT | |
157 > | |
158 to the length of that audio buffer, in bytes. You need to free the audio | |
159 buffer with <A | |
160 HREF="sdlfreewav.html" | |
161 ><TT | |
162 CLASS="FUNCTION" | |
163 >SDL_FreeWAV</TT | |
164 ></A | |
165 > when you are | |
166 done with it.</P | |
167 ><P | |
168 >This function returns <TT | |
169 CLASS="LITERAL" | |
170 >NULL</TT | |
171 > and sets the SDL | |
172 error message if the wave file cannot be opened, uses an unknown data format, | |
173 or is corrupt. Currently raw, MS-ADPCM and IMA-ADPCM WAVE files are supported.</P | |
174 ></DIV | |
175 ><DIV | |
176 CLASS="REFSECT1" | |
177 ><A | |
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178 NAME="AEN6841" |
0 | 179 ></A |
180 ><H2 | |
181 >Example</H2 | |
182 ><PRE | |
183 CLASS="PROGRAMLISTING" | |
184 >SDL_AudioSpec wav_spec; | |
185 Uint32 wav_length; | |
186 Uint8 *wav_buffer; | |
187 | |
188 /* Load the WAV */ | |
189 if( SDL_LoadWAV("test.wav", &wav_spec, &wav_buffer, &wav_length) == NULL ){ | |
190 fprintf(stderr, "Could not open test.wav: %s\n", SDL_GetError()); | |
191 exit(-1); | |
192 } | |
193 . | |
194 . | |
195 . | |
196 /* Do stuff with the WAV */ | |
197 . | |
198 . | |
199 /* Free It */ | |
200 SDL_FreeWAV(wav_buffer);</PRE | |
201 ></DIV | |
202 ><DIV | |
203 CLASS="REFSECT1" | |
204 ><A | |
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205 NAME="AEN6844" |
0 | 206 ></A |
207 ><H2 | |
208 >See Also</H2 | |
209 ><P | |
210 ><A | |
211 HREF="sdlaudiospec.html" | |
212 ><SPAN | |
213 CLASS="STRUCTNAME" | |
214 >SDL_AudioSpec</SPAN | |
215 ></A | |
216 >, | |
217 <A | |
218 HREF="sdlopenaudio.html" | |
219 ><TT | |
220 CLASS="FUNCTION" | |
221 >SDL_OpenAudio</TT | |
222 ></A | |
223 >, | |
224 <A | |
225 HREF="sdlfreewav.html" | |
226 ><TT | |
227 CLASS="FUNCTION" | |
228 >SDL_FreeWAV</TT | |
229 ></A | |
230 ></P | |
231 ></DIV | |
232 ><DIV | |
233 CLASS="NAVFOOTER" | |
234 ><HR | |
235 ALIGN="LEFT" | |
236 WIDTH="100%"><TABLE | |
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237 SUMMARY="Footer navigation table" |
0 | 238 WIDTH="100%" |
239 BORDER="0" | |
240 CELLPADDING="0" | |
241 CELLSPACING="0" | |
242 ><TR | |
243 ><TD | |
244 WIDTH="33%" | |
245 ALIGN="left" | |
246 VALIGN="top" | |
247 ><A | |
248 HREF="sdlgetaudiostatus.html" | |
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249 ACCESSKEY="P" |
0 | 250 >Prev</A |
251 ></TD | |
252 ><TD | |
253 WIDTH="34%" | |
254 ALIGN="center" | |
255 VALIGN="top" | |
256 ><A | |
257 HREF="index.html" | |
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258 ACCESSKEY="H" |
0 | 259 >Home</A |
260 ></TD | |
261 ><TD | |
262 WIDTH="33%" | |
263 ALIGN="right" | |
264 VALIGN="top" | |
265 ><A | |
266 HREF="sdlfreewav.html" | |
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267 ACCESSKEY="N" |
0 | 268 >Next</A |
269 ></TD | |
270 ></TR | |
271 ><TR | |
272 ><TD | |
273 WIDTH="33%" | |
274 ALIGN="left" | |
275 VALIGN="top" | |
276 >SDL_GetAudioStatus</TD | |
277 ><TD | |
278 WIDTH="34%" | |
279 ALIGN="center" | |
280 VALIGN="top" | |
281 ><A | |
282 HREF="audio.html" | |
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283 ACCESSKEY="U" |
0 | 284 >Up</A |
285 ></TD | |
286 ><TD | |
287 WIDTH="33%" | |
288 ALIGN="right" | |
289 VALIGN="top" | |
290 >SDL_FreeWAV</TD | |
291 ></TR | |
292 ></TABLE | |
293 ></DIV | |
294 ></BODY | |
295 ></HTML | |
296 > |