Mercurial > sdl-ios-xcode
annotate docs/html/sdlupdaterects.html @ 3872:be84332e761e SDL-1.2
Fixed bug #278
Added the GFX_Display to the wminfo structure, contributed by Eric
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 24 Sep 2006 00:08:28 +0000 |
parents | 355632dca928 |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_UpdateRects</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_UpdateRect" | |
17 HREF="sdlupdaterect.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_Flip" | |
20 HREF="sdlflip.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="sdlupdaterect.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="sdlflip.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="SDLUPDATERECTS" | |
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74 ></A |
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75 >SDL_UpdateRects</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN1392" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_UpdateRects -- Makes sure the given list of rectangles is updated on the given screen.</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN1395" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN1396" |
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_UpdateRects</B | |
108 ></CODE | |
109 >(SDL_Surface *screen, int numrects, SDL_Rect *rects);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN1402" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
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123 >Makes sure the given list of rectangles is updated on the given screen. |
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124 The rectangles must all be confined within the screen boundaries (no |
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125 clipping is done).</P |
0 | 126 ><P |
127 >This function should not be called while <TT | |
128 CLASS="PARAMETER" | |
129 ><I | |
130 >screen</I | |
131 ></TT | |
132 > is | |
133 <A | |
134 HREF="sdllocksurface.html" | |
135 >locked</A | |
55
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136 >.</P |
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137 ><DIV |
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138 CLASS="NOTE" |
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139 ><BLOCKQUOTE |
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140 CLASS="NOTE" |
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141 ><P |
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142 ><B |
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143 >Note: </B |
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144 >It is adviced to call this function only once per frame, since each |
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145 call has some processing overhead. This is no restriction since you |
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146 can pass any number of rectangles each time.</P |
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147 ><P |
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148 >The rectangles are not automatically merged or checked for overlap. In |
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149 general, the programmer can use his knowledge about his particular |
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150 rectangles to merge them in an efficient way, to avoid overdraw.</P |
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151 ></BLOCKQUOTE |
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152 ></DIV |
0 | 153 ></DIV |
154 ><DIV | |
155 CLASS="REFSECT1" | |
156 ><A | |
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157 NAME="AEN1411" |
0 | 158 ></A |
159 ><H2 | |
160 >See Also</H2 | |
161 ><P | |
162 ><A | |
163 HREF="sdlupdaterect.html" | |
164 ><TT | |
165 CLASS="FUNCTION" | |
166 >SDL_UpdateRect</TT | |
167 ></A | |
168 >, | |
169 <A | |
170 HREF="sdlrect.html" | |
171 ><SPAN | |
172 CLASS="STRUCTNAME" | |
173 >SDL_Rect</SPAN | |
174 ></A | |
175 >, | |
176 <A | |
177 HREF="sdlsurface.html" | |
178 ><SPAN | |
179 CLASS="STRUCTNAME" | |
180 >SDL_Surface</SPAN | |
181 ></A | |
182 >, | |
183 <A | |
184 HREF="sdllocksurface.html" | |
185 ><TT | |
186 CLASS="FUNCTION" | |
187 >SDL_LockSurface</TT | |
188 ></A | |
189 ></P | |
190 ></DIV | |
191 ><DIV | |
192 CLASS="NAVFOOTER" | |
193 ><HR | |
194 ALIGN="LEFT" | |
195 WIDTH="100%"><TABLE | |
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196 SUMMARY="Footer navigation table" |
0 | 197 WIDTH="100%" |
198 BORDER="0" | |
199 CELLPADDING="0" | |
200 CELLSPACING="0" | |
201 ><TR | |
202 ><TD | |
203 WIDTH="33%" | |
204 ALIGN="left" | |
205 VALIGN="top" | |
206 ><A | |
207 HREF="sdlupdaterect.html" | |
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208 ACCESSKEY="P" |
0 | 209 >Prev</A |
210 ></TD | |
211 ><TD | |
212 WIDTH="34%" | |
213 ALIGN="center" | |
214 VALIGN="top" | |
215 ><A | |
216 HREF="index.html" | |
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217 ACCESSKEY="H" |
0 | 218 >Home</A |
219 ></TD | |
220 ><TD | |
221 WIDTH="33%" | |
222 ALIGN="right" | |
223 VALIGN="top" | |
224 ><A | |
225 HREF="sdlflip.html" | |
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226 ACCESSKEY="N" |
0 | 227 >Next</A |
228 ></TD | |
229 ></TR | |
230 ><TR | |
231 ><TD | |
232 WIDTH="33%" | |
233 ALIGN="left" | |
234 VALIGN="top" | |
235 >SDL_UpdateRect</TD | |
236 ><TD | |
237 WIDTH="34%" | |
238 ALIGN="center" | |
239 VALIGN="top" | |
240 ><A | |
241 HREF="video.html" | |
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242 ACCESSKEY="U" |
0 | 243 >Up</A |
244 ></TD | |
245 ><TD | |
246 WIDTH="33%" | |
247 ALIGN="right" | |
248 VALIGN="top" | |
249 >SDL_Flip</TD | |
250 ></TR | |
251 ></TABLE | |
252 ></DIV | |
253 ></BODY | |
254 ></HTML | |
255 > |