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  39. >SDL Library Documentation</TH
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  71. >SDL_UpdateRect</A
  72. ></H1
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  78. ><H2
  79. >Name</H2
  80. >SDL_UpdateRect&nbsp;--&nbsp;Makes sure the given area is updated on the given screen.</DIV
  81. ><DIV
  82. CLASS="REFSYNOPSISDIV"
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  84. NAME="AEN943"
  85. ></A
  86. ><H2
  87. >Synopsis</H2
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  93. ><P
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  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_UpdateRect</B
  105. ></CODE
  106. >(SDL_Surface *screen, Sint32 x, Sint32 y, Sint32 w, Sint32 h);</CODE
  107. ></P
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  117. ><H2
  118. >Description</H2
  119. ><P
  120. >Makes sure the given area is updated on the given screen. The rectangle must
  121. be confined within the screen boundaries (no clipping is done).</P
  122. ><P
  123. >If '<TT
  124. CLASS="PARAMETER"
  125. ><I
  126. >x</I
  127. ></TT
  128. >', '<TT
  129. CLASS="PARAMETER"
  130. ><I
  131. >y</I
  132. ></TT
  133. >', '<TT
  134. CLASS="PARAMETER"
  135. ><I
  136. >w</I
  137. ></TT
  138. >'
  139. and '<TT
  140. CLASS="PARAMETER"
  141. ><I
  142. >h</I
  143. ></TT
  144. >' are all 0,
  145. <TT
  146. CLASS="FUNCTION"
  147. >SDL_UpdateRect</TT
  148. > will update the
  149. entire screen.</P
  150. ><P
  151. >This function should not be called while '<TT
  152. CLASS="PARAMETER"
  153. ><I
  154. >screen</I
  155. ></TT
  156. >' is
  157. <A
  158. HREF="sdllocksurface.html"
  159. >locked</A
  160. >.</P
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  163. CLASS="REFSECT1"
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  165. NAME="AEN962"
  166. ></A
  167. ><H2
  168. >See Also</H2
  169. ><P
  170. ><A
  171. HREF="sdlupdaterects.html"
  172. ><TT
  173. CLASS="FUNCTION"
  174. >SDL_UpdateRects</TT
  175. ></A
  176. >,
  177. <A
  178. HREF="sdlrect.html"
  179. ><SPAN
  180. CLASS="STRUCTNAME"
  181. >SDL_Rect</SPAN
  182. ></A
  183. >,
  184. <A
  185. HREF="sdlsurface.html"
  186. ><SPAN
  187. CLASS="STRUCTNAME"
  188. >SDL_Surface</SPAN
  189. ></A
  190. >,
  191. <A
  192. HREF="sdllocksurface.html"
  193. ><TT
  194. CLASS="FUNCTION"
  195. >SDL_LockSurface</TT
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