Mercurial > sdl-ios-xcode
annotate docs/html/sdlupdaterects.html @ 181:e5bc29de3f0a
Updated from the SDL Documentation Project
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 14 Sep 2001 02:41:09 +0000 |
| parents | 55f1f1b3e27d |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 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 1.64 |
| 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_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 | |
| 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="sdlupdaterect.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="sdlflip.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="SDLUPDATERECTS" | |
| 71 >SDL_UpdateRects</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
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76 NAME="AEN1008" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_UpdateRects -- Makes sure the given list of rectangles is updated on the given screen.</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSYNOPSISDIV" | |
| 83 ><A | |
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84 NAME="AEN1011" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Synopsis</H2 | |
| 88 ><DIV | |
| 89 CLASS="FUNCSYNOPSIS" | |
| 90 ><A | |
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91 NAME="AEN1012" |
| 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_UpdateRects</B | |
| 105 ></CODE | |
| 106 >(SDL_Surface *screen, int numrects, SDL_Rect *rects);</CODE | |
| 107 ></P | |
| 108 ><P | |
| 109 ></P | |
| 110 ></DIV | |
| 111 ></DIV | |
| 112 ><DIV | |
| 113 CLASS="REFSECT1" | |
| 114 ><A | |
|
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115 NAME="AEN1018" |
| 0 | 116 ></A |
| 117 ><H2 | |
| 118 >Description</H2 | |
| 119 ><P | |
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120 >Makes sure the given list of rectangles is updated on the given screen. |
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121 The rectangles must all be confined within the screen boundaries (no |
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122 clipping is done).</P |
| 0 | 123 ><P |
| 124 >This function should not be called while <TT | |
| 125 CLASS="PARAMETER" | |
| 126 ><I | |
| 127 >screen</I | |
| 128 ></TT | |
| 129 > is | |
| 130 <A | |
| 131 HREF="sdllocksurface.html" | |
| 132 >locked</A | |
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133 >.</P |
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134 ><DIV |
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135 CLASS="NOTE" |
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136 ><BLOCKQUOTE |
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137 CLASS="NOTE" |
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138 ><P |
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139 ><B |
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140 >Note: </B |
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141 >It is adviced to call this function only once per frame, since each |
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142 call has some processing overhead. This is no restriction since you |
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143 can pass any number of rectangles each time.</P |
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144 ><P |
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145 >The rectangles are not automatically merged or checked for overlap. In |
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55f1f1b3e27d
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146 general, the programmer can use his knowledge about his particular |
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147 rectangles to merge them in an efficient way, to avoid overdraw.</P |
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148 ></BLOCKQUOTE |
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149 ></DIV |
| 0 | 150 ></DIV |
| 151 ><DIV | |
| 152 CLASS="REFSECT1" | |
| 153 ><A | |
|
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154 NAME="AEN1027" |
| 0 | 155 ></A |
| 156 ><H2 | |
| 157 >See Also</H2 | |
| 158 ><P | |
| 159 ><A | |
| 160 HREF="sdlupdaterect.html" | |
| 161 ><TT | |
| 162 CLASS="FUNCTION" | |
| 163 >SDL_UpdateRect</TT | |
| 164 ></A | |
| 165 >, | |
| 166 <A | |
| 167 HREF="sdlrect.html" | |
| 168 ><SPAN | |
| 169 CLASS="STRUCTNAME" | |
| 170 >SDL_Rect</SPAN | |
| 171 ></A | |
| 172 >, | |
| 173 <A | |
| 174 HREF="sdlsurface.html" | |
| 175 ><SPAN | |
| 176 CLASS="STRUCTNAME" | |
| 177 >SDL_Surface</SPAN | |
| 178 ></A | |
| 179 >, | |
| 180 <A | |
| 181 HREF="sdllocksurface.html" | |
| 182 ><TT | |
| 183 CLASS="FUNCTION" | |
| 184 >SDL_LockSurface</TT | |
| 185 ></A | |
| 186 ></P | |
| 187 ></DIV | |
| 188 ><DIV | |
| 189 CLASS="NAVFOOTER" | |
| 190 ><HR | |
| 191 ALIGN="LEFT" | |
| 192 WIDTH="100%"><TABLE | |
| 193 WIDTH="100%" | |
| 194 BORDER="0" | |
| 195 CELLPADDING="0" | |
| 196 CELLSPACING="0" | |
| 197 ><TR | |
| 198 ><TD | |
| 199 WIDTH="33%" | |
| 200 ALIGN="left" | |
| 201 VALIGN="top" | |
| 202 ><A | |
| 203 HREF="sdlupdaterect.html" | |
| 204 >Prev</A | |
| 205 ></TD | |
| 206 ><TD | |
| 207 WIDTH="34%" | |
| 208 ALIGN="center" | |
| 209 VALIGN="top" | |
| 210 ><A | |
| 211 HREF="index.html" | |
| 212 >Home</A | |
| 213 ></TD | |
| 214 ><TD | |
| 215 WIDTH="33%" | |
| 216 ALIGN="right" | |
| 217 VALIGN="top" | |
| 218 ><A | |
| 219 HREF="sdlflip.html" | |
| 220 >Next</A | |
| 221 ></TD | |
| 222 ></TR | |
| 223 ><TR | |
| 224 ><TD | |
| 225 WIDTH="33%" | |
| 226 ALIGN="left" | |
| 227 VALIGN="top" | |
| 228 >SDL_UpdateRect</TD | |
| 229 ><TD | |
| 230 WIDTH="34%" | |
| 231 ALIGN="center" | |
| 232 VALIGN="top" | |
| 233 ><A | |
| 234 HREF="video.html" | |
| 235 >Up</A | |
| 236 ></TD | |
| 237 ><TD | |
| 238 WIDTH="33%" | |
| 239 ALIGN="right" | |
| 240 VALIGN="top" | |
| 241 >SDL_Flip</TD | |
| 242 ></TR | |
| 243 ></TABLE | |
| 244 ></DIV | |
| 245 ></BODY | |
| 246 ></HTML | |
| 247 > |