Mercurial > sdl-ios-xcode
annotate docs/html/sdlgetrgb.html @ 664:abfdc08eb289
Date: Sun, 3 Aug 2003 22:07:57 +0200
From: Max Horn
Subject: SDL OSX fullscreen FIX
the attached patch fixes the fullscreen problems on SDL/OSX. The cause
was that click events are bounded by winRect. Now, winRect is set to
the size of the video surface. But if you e.g. request a 640x420
surface, you might get a 640x480 "real" surface. Still,
SDL_VideoSurface->h will be set to 420! Thus, the upper 60 pixels in my
example received no mouse down events.
My fix simply disables this clipping when in full screen mode - after
all, all clicks then should be inside the screen surface. Higher SDL
functions ensure that the coordinates then are clipped to 640x420. It
works fine in all my tests here. I don't know if it's the right thing
to do in multi screen scenarios, though.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 04 Aug 2003 01:00:30 +0000 |
parents | e5bc29de3f0a |
children | 355632dca928 |
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 1.64 |
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 | |
31 WIDTH="100%" | |
32 BORDER="0" | |
33 CELLPADDING="0" | |
34 CELLSPACING="0" | |
35 ><TR | |
36 ><TH | |
37 COLSPAN="3" | |
38 ALIGN="center" | |
39 >SDL Library Documentation</TH | |
40 ></TR | |
41 ><TR | |
42 ><TD | |
43 WIDTH="10%" | |
44 ALIGN="left" | |
45 VALIGN="bottom" | |
46 ><A | |
47 HREF="sdlmaprgba.html" | |
48 >Prev</A | |
49 ></TD | |
50 ><TD | |
51 WIDTH="80%" | |
52 ALIGN="center" | |
53 VALIGN="bottom" | |
54 ></TD | |
55 ><TD | |
56 WIDTH="10%" | |
57 ALIGN="right" | |
58 VALIGN="bottom" | |
59 ><A | |
60 HREF="sdlgetrgba.html" | |
61 >Next</A | |
62 ></TD | |
63 ></TR | |
64 ></TABLE | |
65 ><HR | |
66 ALIGN="LEFT" | |
67 WIDTH="100%"></DIV | |
68 ><H1 | |
69 ><A | |
70 NAME="SDLGETRGB" | |
71 >SDL_GetRGB</A | |
72 ></H1 | |
73 ><DIV | |
74 CLASS="REFNAMEDIV" | |
75 ><A | |
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76 NAME="AEN1334" |
0 | 77 ></A |
78 ><H2 | |
79 >Name</H2 | |
80 >SDL_GetRGB -- Get RGB values from a pixel in the specified pixel format.</DIV | |
81 ><DIV | |
82 CLASS="REFSYNOPSISDIV" | |
83 ><A | |
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84 NAME="AEN1337" |
0 | 85 ></A |
86 ><H2 | |
87 >Synopsis</H2 | |
88 ><DIV | |
89 CLASS="FUNCSYNOPSIS" | |
90 ><A | |
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91 NAME="AEN1338" |
0 | 92 ></A |
93 ><P | |
94 ></P | |
95 ><PRE | |
96 CLASS="FUNCSYNOPSISINFO" | |
97 >#include "SDL.h"</PRE | |
98 ><P | |
99 ><CODE | |
100 ><CODE | |
101 CLASS="FUNCDEF" | |
102 >void <B | |
103 CLASS="FSFUNC" | |
104 >SDL_GetRGB</B | |
105 ></CODE | |
106 >(Uint32 pixel, SDL_PixelFormat *fmt, Uint8 *r, Uint8 *g, Uint8 *b);</CODE | |
107 ></P | |
108 ><P | |
109 ></P | |
110 ></DIV | |
111 ></DIV | |
112 ><DIV | |
113 CLASS="REFSECT1" | |
114 ><A | |
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115 NAME="AEN1344" |
0 | 116 ></A |
117 ><H2 | |
118 >Description</H2 | |
119 ><P | |
120 >Get RGB component values from a pixel stored in the specified pixel format.</P | |
121 ><P | |
122 >This function uses the entire 8-bit [0..255] range when converting color | |
123 components from pixel formats with less than 8-bits per RGB component | |
124 (e.g., a completely white pixel in 16-bit RGB565 format would return | |
125 [0xff, 0xff, 0xff] not [0xf8, 0xfc, 0xf8]).</P | |
126 ></DIV | |
127 ><DIV | |
128 CLASS="REFSECT1" | |
129 ><A | |
181
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130 NAME="AEN1348" |
0 | 131 ></A |
132 ><H2 | |
133 >See Also</H2 | |
134 ><P | |
135 ><A | |
136 HREF="sdlgetrgba.html" | |
137 ><TT | |
138 CLASS="FUNCTION" | |
139 >SDL_GetRGBA</TT | |
140 ></A | |
141 >, | |
142 <A | |
143 HREF="sdlmaprgb.html" | |
144 ><TT | |
145 CLASS="FUNCTION" | |
146 >SDL_MapRGB</TT | |
147 ></A | |
148 >, | |
149 <A | |
150 HREF="sdlmaprgba.html" | |
151 ><TT | |
152 CLASS="FUNCTION" | |
153 >SDL_MapRGBA</TT | |
154 ></A | |
155 >, | |
156 <A | |
157 HREF="sdlpixelformat.html" | |
158 ><SPAN | |
159 CLASS="STRUCTNAME" | |
160 >SDL_PixelFormat</SPAN | |
161 ></A | |
162 ></P | |
163 ></DIV | |
164 ><DIV | |
165 CLASS="NAVFOOTER" | |
166 ><HR | |
167 ALIGN="LEFT" | |
168 WIDTH="100%"><TABLE | |
169 WIDTH="100%" | |
170 BORDER="0" | |
171 CELLPADDING="0" | |
172 CELLSPACING="0" | |
173 ><TR | |
174 ><TD | |
175 WIDTH="33%" | |
176 ALIGN="left" | |
177 VALIGN="top" | |
178 ><A | |
179 HREF="sdlmaprgba.html" | |
180 >Prev</A | |
181 ></TD | |
182 ><TD | |
183 WIDTH="34%" | |
184 ALIGN="center" | |
185 VALIGN="top" | |
186 ><A | |
187 HREF="index.html" | |
188 >Home</A | |
189 ></TD | |
190 ><TD | |
191 WIDTH="33%" | |
192 ALIGN="right" | |
193 VALIGN="top" | |
194 ><A | |
195 HREF="sdlgetrgba.html" | |
196 >Next</A | |
197 ></TD | |
198 ></TR | |
199 ><TR | |
200 ><TD | |
201 WIDTH="33%" | |
202 ALIGN="left" | |
203 VALIGN="top" | |
204 >SDL_MapRGBA</TD | |
205 ><TD | |
206 WIDTH="34%" | |
207 ALIGN="center" | |
208 VALIGN="top" | |
209 ><A | |
210 HREF="video.html" | |
211 >Up</A | |
212 ></TD | |
213 ><TD | |
214 WIDTH="33%" | |
215 ALIGN="right" | |
216 VALIGN="top" | |
217 >SDL_GetRGBA</TD | |
218 ></TR | |
219 ></TABLE | |
220 ></DIV | |
221 ></BODY | |
222 ></HTML | |
223 > |