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view docs/html/sdlupdaterect.html @ 3958:85b6fb6a5e3c SDL-1.2

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Actually, this is a better fix...clear the error state once if everything we need loaded; it's more efficient, and works even if the last unnecessary xrandr symbol failed to load. Otherwise, leave the original loadso error, so the end user can find out what symbol failed.
author Ryan C. Gordon <icculus@icculus.org>
date Wed, 13 Jun 2007 08:00:10 +0000
parents 355632dca928
children
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<HTML
><HEAD
><TITLE
>SDL_UpdateRect</TITLE
><META
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><H1
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>SDL_UpdateRect</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN1355"
></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="AEN1358"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN1359"
></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="AEN1365"
></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="AEN1377"
></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
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