[sdl_omap.git] / docs / html / sdlgetrgb.html

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>SDL_GetRGB</H1
><DIV
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><H2
>Name</H2
>SDL_GetRGB&nbsp;--&nbsp;Get RGB values from a pixel in the specified pixel format.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
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><H2
>Synopsis</H2
><DIV
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><P
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><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>void <B
CLASS="FSFUNC"
>SDL_GetRGB</B
></CODE
>(Uint32 pixel, SDL_PixelFormat *fmt, Uint8 *r, Uint8 *g, Uint8 *b);</CODE
></P
><P
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CLASS="REFSECT1"
><A
NAME="AEN1728"
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><H2
>Description</H2
><P
>Get RGB component values from a pixel stored in the specified pixel format.</P
><P
>This function uses the entire 8-bit [0..255] range when converting color
components from pixel formats with less than 8-bits per RGB component
(e.g., a completely white pixel in 16-bit RGB565 format would return
[0xff, 0xff, 0xff] not [0xf8, 0xfc, 0xf8]).</P
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><H2
>See Also</H2
><P
><A
HREF="sdlgetrgba.html"
><TT
CLASS="FUNCTION"
>SDL_GetRGBA</TT
></A
>,
<A
HREF="sdlmaprgb.html"
><TT
CLASS="FUNCTION"
>SDL_MapRGB</TT
></A
>,
<A
HREF="sdlmaprgba.html"
><TT
CLASS="FUNCTION"
>SDL_MapRGBA</TT
></A
>,
<A
HREF="sdlpixelformat.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_PixelFormat</SPAN
></A
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Commit	Line	Data
e14743d1	1	<HTML
	2	><HEAD
	3	><TITLE
	4	>SDL_GetRGB</TITLE
	5	><META
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	7	CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
	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"
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	18	REL="NEXT"
	19	TITLE="SDL_GetRGBA"
	20	HREF="sdlgetrgba.html"></HEAD
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	23	BGCOLOR="#FFF8DC"
	24	TEXT="#000000"
	25	LINK="#0000ee"
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	27	ALINK="#ff0000"
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	31	SUMMARY="Header navigation table"
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	39	ALIGN="center"
	40	>SDL Library Documentation</TH
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	42	><TR
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	44	WIDTH="10%"
	45	ALIGN="left"
	46	VALIGN="bottom"
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	48	HREF="sdlmaprgba.html"
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	50	>Prev</A
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	60	VALIGN="bottom"
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	62	HREF="sdlgetrgba.html"
	63	ACCESSKEY="N"
	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"
74	></A
75	>SDL_GetRGB</H1
76	><DIV
77	CLASS="REFNAMEDIV"
78	><A
79	NAME="AEN1718"
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
87	NAME="AEN1721"
88	></A
89	><H2
90	>Synopsis</H2
91	><DIV
92	CLASS="FUNCSYNOPSIS"
93	><A
94	NAME="AEN1722"
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
118	NAME="AEN1728"
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
133	NAME="AEN1732"
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
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168	CLASS="NAVFOOTER"
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170	ALIGN="LEFT"
171	WIDTH="100%"><TABLE
172	SUMMARY="Footer navigation table"
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180	ALIGN="left"
181	VALIGN="top"
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183	HREF="sdlmaprgba.html"
184	ACCESSKEY="P"
185	>Prev</A
186	></TD
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188	WIDTH="34%"
189	ALIGN="center"
190	VALIGN="top"
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192	HREF="index.html"
193	ACCESSKEY="H"
194	>Home</A
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196	><TD
197	WIDTH="33%"
198	ALIGN="right"
199	VALIGN="top"
200	><A
201	HREF="sdlgetrgba.html"
202	ACCESSKEY="N"
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"
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217	HREF="video.html"
218	ACCESSKEY="U"
219	>Up</A
220	></TD
221	><TD
222	WIDTH="33%"
223	ALIGN="right"
224	VALIGN="top"
225	>SDL_GetRGBA</TD
226	></TR
227	></TABLE
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229	></BODY
230	></HTML
231	>