Mercurial > sdl-ios-xcode
annotate docs/html/sdlgetrgb.html @ 3274:08574b033f37
Removed outdated Nano-X support
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 19 Sep 2009 07:26:51 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_GetRGB</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="Video" | |
14 HREF="video.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_MapRGBA" | |
17 HREF="sdlmaprgba.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_GetRGBA" | |
20 HREF="sdlgetrgba.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="sdlmaprgba.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="sdlgetrgba.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="SDLGETRGB" | |
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74 ></A |
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75 >SDL_GetRGB</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN1718" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_GetRGB -- Get RGB values from a pixel in the specified pixel format.</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN1721" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN1722" |
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 >void <B | |
106 CLASS="FSFUNC" | |
107 >SDL_GetRGB</B | |
108 ></CODE | |
109 >(Uint32 pixel, SDL_PixelFormat *fmt, Uint8 *r, Uint8 *g, Uint8 *b);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN1728" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Get RGB component values from a pixel stored in the specified pixel format.</P | |
124 ><P | |
125 >This function uses the entire 8-bit [0..255] range when converting color | |
126 components from pixel formats with less than 8-bits per RGB component | |
127 (e.g., a completely white pixel in 16-bit RGB565 format would return | |
128 [0xff, 0xff, 0xff] not [0xf8, 0xfc, 0xf8]).</P | |
129 ></DIV | |
130 ><DIV | |
131 CLASS="REFSECT1" | |
132 ><A | |
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133 NAME="AEN1732" |
0 | 134 ></A |
135 ><H2 | |
136 >See Also</H2 | |
137 ><P | |
138 ><A | |
139 HREF="sdlgetrgba.html" | |
140 ><TT | |
141 CLASS="FUNCTION" | |
142 >SDL_GetRGBA</TT | |
143 ></A | |
144 >, | |
145 <A | |
146 HREF="sdlmaprgb.html" | |
147 ><TT | |
148 CLASS="FUNCTION" | |
149 >SDL_MapRGB</TT | |
150 ></A | |
151 >, | |
152 <A | |
153 HREF="sdlmaprgba.html" | |
154 ><TT | |
155 CLASS="FUNCTION" | |
156 >SDL_MapRGBA</TT | |
157 ></A | |
158 >, | |
159 <A | |
160 HREF="sdlpixelformat.html" | |
161 ><SPAN | |
162 CLASS="STRUCTNAME" | |
163 >SDL_PixelFormat</SPAN | |
164 ></A | |
165 ></P | |
166 ></DIV | |
167 ><DIV | |
168 CLASS="NAVFOOTER" | |
169 ><HR | |
170 ALIGN="LEFT" | |
171 WIDTH="100%"><TABLE | |
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172 SUMMARY="Footer navigation table" |
0 | 173 WIDTH="100%" |
174 BORDER="0" | |
175 CELLPADDING="0" | |
176 CELLSPACING="0" | |
177 ><TR | |
178 ><TD | |
179 WIDTH="33%" | |
180 ALIGN="left" | |
181 VALIGN="top" | |
182 ><A | |
183 HREF="sdlmaprgba.html" | |
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184 ACCESSKEY="P" |
0 | 185 >Prev</A |
186 ></TD | |
187 ><TD | |
188 WIDTH="34%" | |
189 ALIGN="center" | |
190 VALIGN="top" | |
191 ><A | |
192 HREF="index.html" | |
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193 ACCESSKEY="H" |
0 | 194 >Home</A |
195 ></TD | |
196 ><TD | |
197 WIDTH="33%" | |
198 ALIGN="right" | |
199 VALIGN="top" | |
200 ><A | |
201 HREF="sdlgetrgba.html" | |
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202 ACCESSKEY="N" |
0 | 203 >Next</A |
204 ></TD | |
205 ></TR | |
206 ><TR | |
207 ><TD | |
208 WIDTH="33%" | |
209 ALIGN="left" | |
210 VALIGN="top" | |
211 >SDL_MapRGBA</TD | |
212 ><TD | |
213 WIDTH="34%" | |
214 ALIGN="center" | |
215 VALIGN="top" | |
216 ><A | |
217 HREF="video.html" | |
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218 ACCESSKEY="U" |
0 | 219 >Up</A |
220 ></TD | |
221 ><TD | |
222 WIDTH="33%" | |
223 ALIGN="right" | |
224 VALIGN="top" | |
225 >SDL_GetRGBA</TD | |
226 ></TR | |
227 ></TABLE | |
228 ></DIV | |
229 ></BODY | |
230 ></HTML | |
231 > |