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<HTML
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><TITLE
>SDL_UpdateRect</TITLE
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><H1
><A
NAME="SDLUPDATERECT"
>SDL_UpdateRect</A
></H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN940"
></A
><H2
>Name</H2
>SDL_UpdateRect&nbsp;--&nbsp;Makes sure the given area is updated on the given screen.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN943"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN944"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>void <B
CLASS="FSFUNC"
>SDL_UpdateRect</B
></CODE
>(SDL_Surface *screen, Sint32 x, Sint32 y, Sint32 w, Sint32 h);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN950"
></A
><H2
>Description</H2
><P
>Makes sure the given area is updated on the given screen. The rectangle must
be confined within the screen boundaries (no clipping is done).</P
><P
>If '<TT
CLASS="PARAMETER"
><I
>x</I
></TT
>', '<TT
CLASS="PARAMETER"
><I
>y</I
></TT
>', '<TT
CLASS="PARAMETER"
><I
>w</I
></TT
>'
and '<TT
CLASS="PARAMETER"
><I
>h</I
></TT
>' are all 0,
<TT
CLASS="FUNCTION"
>SDL_UpdateRect</TT
> will update the
entire screen.</P
><P
>This function should not be called while '<TT
CLASS="PARAMETER"
><I
>screen</I
></TT
>' is
<A
HREF="sdllocksurface.html"
>locked</A
>.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN962"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlupdaterects.html"
><TT
CLASS="FUNCTION"
>SDL_UpdateRects</TT
></A
>,
<A
HREF="sdlrect.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_Rect</SPAN
></A
>,
<A
HREF="sdlsurface.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_Surface</SPAN
></A
>,
<A
HREF="sdllocksurface.html"
><TT
CLASS="FUNCTION"
>SDL_LockSurface</TT
></A
></P
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